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Andre Beging
488
ViewModel/MainViewModel.cs
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488
ViewModel/MainViewModel.cs
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using DebtMgr.Model;
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using DebtMgr.View.Dialogs;
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using GalaSoft.MvvmLight;
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using GalaSoft.MvvmLight.Command;
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using SQLiteNetExtensions.Extensions;
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using System.Collections.Generic;
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using System.Linq;
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using System.Windows;
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using System;
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using System.Configuration;
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using SQLite.Net;
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using SQLite.Net.Platform.Generic;
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namespace DebtMgr.ViewModel
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{
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public class MainViewModel : ViewModelBase
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{
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#region PersonListViewItemSource (List<Person>) Property
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/// <summary>
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/// Privater Teil von <see cref="PersonListViewItemSource" />
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/// </summary>
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private List<Person> _personListViewItemSource;
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/// <summary>
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/// Comment
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///</summary>
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public List<Person> PersonListViewItemSource
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{
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get { return _personListViewItemSource; }
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set
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{
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_personListViewItemSource = value;
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RaisePropertyChanged(() => PersonListViewItemSource);
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}
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}
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#endregion
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#region PersonListViewSelectedItem (Person) Property
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/// <summary>
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/// Privater Teil von <see cref="PersonListViewSelectedItem" />
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/// </summary>
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private Person _personListViewSelectedItem;
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/// <summary>
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/// PersonListViewSelectedItem
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///</summary>
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public Person PersonListViewSelectedItem
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{
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get { return _personListViewSelectedItem; }
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set
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{
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_personListViewSelectedItem = value;
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RaisePropertyChanged(() => PersonListViewSelectedItem);
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DeletePersonContextMenuCommand.RaiseCanExecuteChanged();
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UpdateDetailView();
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}
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}
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#endregion
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#region DetailViewHeaderLabelContent (string) Property
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/// <summary>
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/// Privater Teil von <see cref="DetailViewHeaderLabelContent" />
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/// </summary>
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private string _detailViewHeaderLabelContent;
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/// <summary>
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/// Comment
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///</summary>
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public string DetailViewHeaderLabelContent
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{
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get { return _detailViewHeaderLabelContent; }
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set
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{
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_detailViewHeaderLabelContent = value;
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RaisePropertyChanged(() => DetailViewHeaderLabelContent);
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}
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}
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#endregion
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#region DetailViewBalanceLabel (string) Property
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/// <summary>
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/// Privater Teil von <see cref="DetailViewBalanceLabel" />
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/// </summary>
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private string _detailViewBalanceLabel;
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/// <summary>
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/// Comment
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///</summary>
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public string DetailViewBalanceLabel
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{
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get { return _detailViewBalanceLabel; }
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set
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{
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_detailViewBalanceLabel = value;
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RaisePropertyChanged(() => DetailViewBalanceLabel);
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}
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}
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#endregion
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#region OverallBalanceLabel (string) Property
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/// <summary>
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/// Privater Teil von <see cref="OverallBalanceLabel" />
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/// </summary>
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private string _overallBalanceLabel;
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/// <summary>
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/// Comment
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///</summary>
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public string OverallBalanceLabel
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{
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get { return _overallBalanceLabel; }
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set
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{
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_overallBalanceLabel = value;
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RaisePropertyChanged(() => OverallBalanceLabel);
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}
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}
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#endregion
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#region TransactionHistoryListViewItemSource (List<Transaction>) Property
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/// <summary>
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/// Privater Teil von <see cref="TransactionHistoryListViewItemSource" />
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/// </summary>
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private List<Transaction> _transactionHistoryListViewItemSource;
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/// <summary>
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/// Comment
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///</summary>
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public List<Transaction> TransactionHistoryListViewItemSource
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{
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get { return _transactionHistoryListViewItemSource; }
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set
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{
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_transactionHistoryListViewItemSource = value;
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RaisePropertyChanged(() => TransactionHistoryListViewItemSource);
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}
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}
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#endregion
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#region TransactionHistoryListViewSelectedItem (Transaction) Property
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/// <summary>
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/// Privater Teil von <see cref="TransactionHistoryListViewSelectedItem" />
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/// </summary>
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private Transaction _transactionHistoryListViewSelectedItem;
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/// <summary>
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/// Comment
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///</summary>
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public Transaction TransactionHistoryListViewSelectedItem
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{
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get { return _transactionHistoryListViewSelectedItem; }
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set
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{
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_transactionHistoryListViewSelectedItem = value;
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RaisePropertyChanged(() => TransactionHistoryListViewSelectedItem);
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DeleteTransactionContextMenuCommand.RaiseCanExecuteChanged();
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}
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}
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#endregion
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#region MenuNewPersonCommand Command
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/// <summary>
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/// Private member backing variable for <see cref="MenuNewPersonCommand" />
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/// </summary>
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private RelayCommand _menuNewPersonCommand = null;
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/// <summary>
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/// Comment
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/// </summary>
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public RelayCommand MenuNewPersonCommand => _menuNewPersonCommand ?? (_menuNewPersonCommand = new RelayCommand(MenuNewPersonCommand_Execute, MenuNewPersonCommand_CanExecute));
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private bool MenuNewPersonCommand_CanExecute()
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{
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return true;
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}
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private void MenuNewPersonCommand_Execute()
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{
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var window = new NewPersonDialogView();
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window.ShowDialog();
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}
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#endregion
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#region SortPersonListViewCommand
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/// <summary> The sort person list view command. </summary>
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private RelayCommand<string> _sortPersonListViewCommand = null;
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// <summary> Gets the sort person list view command. </summary>
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///
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/// <value> The sort person list view command. </value>
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////////////////////////////////////////////////////////////////////////////////////////////////////
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public RelayCommand<string> SortPersonListViewCommand
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{
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get
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{
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if (_sortPersonListViewCommand == null)
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_sortPersonListViewCommand = new RelayCommand<string>(SortPersonListViewCommand_Execute);
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return _sortPersonListViewCommand;
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}
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// <summary> Sort person list view command execute. </summary>
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///
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/// <remarks> Andre Beging, 08.09.2017. </remarks>
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///
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/// <param name="columnName"> Name of the column. </param>
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////////////////////////////////////////////////////////////////////////////////////////////////////
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private void SortPersonListViewCommand_Execute(string columnName)
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{
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if (string.IsNullOrWhiteSpace(columnName)) return;
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switch (columnName)
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{
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case "FirstName":
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PersonListViewItemSource = PersonListViewItemSource.OrderBy(x => x.FirstName).ToList();
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break;
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case "LastName":
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PersonListViewItemSource = PersonListViewItemSource.OrderBy(x => x.LastName).ToList();
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break;
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case "Total":
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PersonListViewItemSource = PersonListViewItemSource.OrderBy(x => x.Total).ToList();
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break;
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}
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}
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#endregion
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#region AddChargeContextMenuCommand Command
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/// <summary>
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/// Private member backing variable for <see cref="AddChargeContextMenuCommand" />
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/// </summary>
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private RelayCommand _addChargeContextMenuCommand = null;
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/// <summary>
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/// Comment
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/// </summary>
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public RelayCommand AddChargeContextMenuCommand => _addChargeContextMenuCommand ?? (_addChargeContextMenuCommand = new RelayCommand(AddChargeContextMenuCommand_Execute));
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private void AddChargeContextMenuCommand_Execute()
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{
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var window = new AddTransactionView(TransactionType.Charge, PersonListViewSelectedItem);
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window.ShowDialog();
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}
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#endregion
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#region AddDepositContextMenuCommand Command
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/// <summary>
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/// Private member backing variable for <see cref="AddDepositContextMenuCommand" />
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/// </summary>
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private RelayCommand _addDepositContextMenuCommand = null;
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/// <summary>
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/// Comment
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/// </summary>
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public RelayCommand AddDepositContextMenuCommand => _addDepositContextMenuCommand ?? (_addDepositContextMenuCommand = new RelayCommand(AddDepositContextMenuCommand_Execute));
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private void AddDepositContextMenuCommand_Execute()
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{
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var window = new AddTransactionView(TransactionType.Deposit, PersonListViewSelectedItem);
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window.ShowDialog();
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}
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#endregion
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#region NewPersonContextMenuCommand Command
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/// <summary>
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/// Private member backing variable for <see cref="NewPersonContextMenuCommand" />
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/// </summary>
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private RelayCommand _newPersonContextMenuCommand = null;
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/// <summary>
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/// Comment
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/// </summary>
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public RelayCommand NewPersonContextMenuCommand => _newPersonContextMenuCommand ?? (_newPersonContextMenuCommand = new RelayCommand(NewPersonContextMenuCommand_Execute));
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private void NewPersonContextMenuCommand_Execute()
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{
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var window = new NewPersonDialogView();
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window.ShowDialog();
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}
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#endregion
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#region DeletePersonContextMenuCommand Command
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/// <summary>
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/// Private member backing variable for <see cref="DeletePersonContextMenuCommand" />
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/// </summary>
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private RelayCommand _deletePersonContextMenuCommand = null;
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/// <summary>
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/// Comment
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/// </summary>
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public RelayCommand DeletePersonContextMenuCommand => _deletePersonContextMenuCommand ?? (_deletePersonContextMenuCommand = new RelayCommand(DeletePersonContextMenuCommand_Execute, DeletePersonContextMenuCommand_CanExecute));
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private bool DeletePersonContextMenuCommand_CanExecute()
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{
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if (PersonListViewSelectedItem != null)
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return true;
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return false;
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}
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private void DeletePersonContextMenuCommand_Execute()
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{
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if (PersonListViewSelectedItem == null) return;
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var result = MessageBox.Show(
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string.Format(
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"Are you sure to delete?\n\n{0} {1}",
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PersonListViewSelectedItem.FirstName,
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PersonListViewSelectedItem.LastName),
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"Delete Person",
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MessageBoxButton.YesNo,
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MessageBoxImage.Question);
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if (result == MessageBoxResult.Yes)
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{
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App.Database.Delete<Person>(PersonListViewSelectedItem.Id);
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UpdatePersonsList();
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}
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}
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#endregion
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#region DeleteTransactionContextMenuCommand Command
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/// <summary>
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/// Private member backing variable for <see cref="DeleteTransactionContextMenuCommand" />
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/// </summary>
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private RelayCommand _deleteTransactionContextMenuCommand = null;
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/// <summary>
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/// Comment
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/// </summary>
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public RelayCommand DeleteTransactionContextMenuCommand => _deleteTransactionContextMenuCommand ?? (_deleteTransactionContextMenuCommand = new RelayCommand(DeleteTransactionContextMenuCommand_Execute, DeleteTransactionContextMenuCommand_CanExecute));
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private bool DeleteTransactionContextMenuCommand_CanExecute()
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{
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if (TransactionHistoryListViewSelectedItem != null)
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return true;
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return false;
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}
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private void DeleteTransactionContextMenuCommand_Execute()
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{
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if (TransactionHistoryListViewSelectedItem == null) return;
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var result = MessageBox.Show(
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string.Format(
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"Are you sure to delete?\n\n{1} <20>\n{0}",
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TransactionHistoryListViewSelectedItem.Description,
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TransactionHistoryListViewSelectedItem.Amount),
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"Delete Transaction",
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MessageBoxButton.YesNo,
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MessageBoxImage.Question);
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if (result == MessageBoxResult.Yes)
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{
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App.Database.Delete<Transaction>(TransactionHistoryListViewSelectedItem.Id);
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UpdatePersonsList();
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}
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}
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#endregion
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// <summary> Initializes a new instance of the MainViewModel class. </summary>
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///
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/// <remarks> Andre Beging, 10.09.2017. </remarks>
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////////////////////////////////////////////////////////////////////////////////////////////////////
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public MainViewModel()
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{
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CheckDatabase();
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UpdatePersonsList();
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UpdateDetailView();
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}
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#region UpdatePersonsList()
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// <summary> Updates the persons list. </summary>
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///
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/// <remarks> Andre Beging, 08.09.2017. </remarks>
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////////////////////////////////////////////////////////////////////////////////////////////////////
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public void UpdatePersonsList()
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{
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// Remember selection
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var rememberSelection = PersonListViewSelectedItem?.Id;
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var personList = App.Database.GetAllWithChildren<Person>();
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PersonListViewItemSource = personList;
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var overallBalance = personList.Sum(x => x.Total);
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OverallBalanceLabel = overallBalance.ToString();
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// Restore selection
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if (rememberSelection != null && PersonListViewItemSource.Any(x => x.Id == rememberSelection))
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PersonListViewSelectedItem = PersonListViewItemSource.First(x => x.Id == rememberSelection);
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UpdateDetailView();
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}
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#endregion
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#region UpdateDetailView()
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// <summary> Updates the detail view. </summary>
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///
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/// <remarks> Andre Beging, 10.09.2017. </remarks>
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////////////////////////////////////////////////////////////////////////////////////////////////////
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private void UpdateDetailView()
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{
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if (PersonListViewSelectedItem == null)
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{
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DetailViewHeaderLabelContent = string.Empty;
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DetailViewBalanceLabel = string.Empty;
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TransactionHistoryListViewItemSource = null;
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return;
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};
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DetailViewHeaderLabelContent = string.Format("{0} {1}", PersonListViewSelectedItem.FirstName,
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PersonListViewSelectedItem.LastName);
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DetailViewBalanceLabel = PersonListViewSelectedItem.Total.ToString();
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TransactionHistoryListViewItemSource = PersonListViewSelectedItem.Transactions.OrderByDescending(x => x.Time).ToList();
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}
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#endregion
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#region CheckDatabase()
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// <summary> Check database. </summary>
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///
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/// <remarks> Andre Beging, 10.09.2017. </remarks>
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////////////////////////////////////////////////////////////////////////////////////////////////////
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private void CheckDatabase()
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{
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var databasePath = Properties.Settings.Default.Database;
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if (string.IsNullOrWhiteSpace(databasePath))
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{
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var window = new DatabaseSelectorDialogView();
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var result = window.ShowDialog();
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}
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// Check if provided file path is a valid database
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try
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{
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App.Database.Table<Person>();
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}
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catch (Exception)
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{
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Properties.Settings.Default["Database"] = string.Empty;
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CheckDatabase();
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}
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}
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#endregion
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}
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}
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Reference in New Issue
Block a user