使用WPF DataGrid2D绑定2d数组 [英] Binding 2d array with WPF DataGrid2D
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问题描述
我正在尝试将二维数组绑定到WPF中的DataGrid。我找到了该库 DataGrid2D ,但由于它没有显示正确的结果,我犯了一些错误,但是
I'm tryng to bind a 2 dimensional array to a DataGrid in WPF. I found this library DataGrid2D but I make some mistake because it does not display the correct result but an empty grid.
这是我的XAML代码:
This is my XAML code:
.....
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>
这是.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;
推荐答案
我能够通过移动属性设置器设置到我的viewmodel构造函数中,并确保将viewmodel设置为xaml中的数据上下文。
I was able to get this to work by moving the property setters into my viewmodel constructor and ensuring the viewmodel is set as the datacontext in the xaml.
ViewModel:
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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