[英]Binding 2d array with WPF DataGrid2D
我正在嘗試將二維數組綁定到WPF中的DataGrid。 我找到了該庫DataGrid2D,但由於它沒有顯示正確的結果而是顯示了一個空網格,所以我犯了一些錯誤。
這是我的XAML代碼:
.....
xmlns:dataGrid2D="http://gu.se/DataGrid2D"
....
<Grid>
<DataGrid Name="matrix" dataGrid2D:ItemsSource.Array2D="{Binding Data2D}"
dataGrid2D:ItemsSource.ColumnHeadersSource="{Binding ColumnHeaders}"
dataGrid2D:ItemsSource.RowHeadersSource="{Binding RowHeaders}" />
</Grid>
這是.cs
private String[] _columnHeaders;
public String[] ColumnHeaders
{
get { return _columnHeaders; }
set { _columnHeaders = value; }
}
private String[] _rowHeaders;
public String[] RowHeaders
{
get { return _rowHeaders; }
set { _rowHeaders = value; }
}
private bool[,] _data2D;
public bool[,] Data2D
{
get { return _data2D; }
set { _data2D = value; }
}
String[] columnHeaders = { "A", "B", "C" };
String[] rowHeaders = { "1", "2", "3" };
bool[,] data2D = { { true, true, false }, { true, true, false }, { true, true, false } };
ColumnHeaders = columnHeaders;
RowHeaders = rowHeaders;
Data2D = data2D;
通過將屬性設置器移到我的viewmodel構造函數中並確保將viewmodel設置為xaml中的datacontext,我能夠使它起作用。
ViewModel:
public class MainWindowViewModel
{
private String[] _columnHeaders;
public String[] ColumnHeaders
{
get { return _columnHeaders; }
set { _columnHeaders = value; }
}
private String[] _rowHeaders;
public String[] RowHeaders
{
get { return _rowHeaders; }
set { _rowHeaders = value; }
}
private bool[,] _data2D;
public bool[,] Data2D
{
get { return _data2D; }
set { _data2D = value; }
}
String[] columnHeaders = { "A", "B", "C" };
String[] rowHeaders = { "1", "2", "3" };
bool[,] data2D = { { true, true, false }, { true, true, false }, { true, true, false } };
public MainWindowViewModel()
{
ColumnHeaders = columnHeaders;
RowHeaders = rowHeaders;
Data2D = data2D;
}
}
Xaml:
<Window x:Class="Application.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:Application"
xmlns:dataGrid2D="http://gu.se/DataGrid2D"
mc:Ignorable="d"
Title="MainWindow" Height="350" Width="525">
<Window.DataContext>
<local:MainWindowViewModel />
</Window.DataContext>
<Grid>
<DataGrid Name="matrix"
dataGrid2D:ItemsSource.Array2D="{Binding Data2D}"
dataGrid2D:ItemsSource.ColumnHeadersSource="{Binding ColumnHeaders}"
dataGrid2D:ItemsSource.RowHeadersSource="{Binding RowHeaders}" />
</Grid>
</Window>
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