增加Silverlight DataGrid中的列宽以填充整个DG宽度 [英] Increase columns width in Silverlight DataGrid to fill whole DG width

问题描述

我有一个绑定到SQL表的DataGrid控件。

XAML代码是：

 < data：DataGrid x ：Name =dg_sql_data
 Grid.Row =1
 Visibility =Collapsed
 Height =auto
 Margin =0,5,5,5 
 AutoGenerateColumns =false
 AlternatingRowBackground =Aqua
 Opacity =80
> 
< data：DataGrid.Columns> 
< data：DataGridTextColumn Header =LatitudeBinding ={Binding lat}/> 
< data：DataGridTextColumn Header =LongitudeBinding ={Binding long}/> 
< data：DataGridTextColumn Header =TimeBinding ={Binding time}/> 
< / data：DataGrid.Columns> 
< / data：DataGrid> 
  

是否可能增加单列大小以填充datagrid的完整宽度？
Henrik

编辑：
列为* 宽度随Silverlight SDK 4而来。

解决方案

解决方案：

  void dg_sql_data_SizeChanged（object sender，SizeChangedEventArgs e）
 {
 DataGrid myDataGrid =（DataGrid）sender; 
 //如果Visibility State Changed 
 if（myDataGrid.RenderSize.Width！= 0）
 {
 double all_columns_sizes = 0.0，则不要更改列大小; 
 foreach（myDataGrid.Columns中的DataGridColumn dg_c）
 {
 all_columns_sizes + = dg_c.ActualWidth; 
} 
 //可用空间（-18标准vScrollbar）
 double space_available =（myDataGrid.RenderSize.Width  -  18） -  all_columns_sizes; 
 foreach（myDataGrid.Columns中的DataGridColumn dg_c）
 {
 dg_c.Width = new DataGridLength（dg_c.ActualWidth +（space_available / myDataGrid.Columns.Count））; 
} 
} 
} 
  

结果：

I have a DataGrid Control which is bound to a SQL Table.

The XAML Code is:

<data:DataGrid x:Name="dg_sql_data" 
                       Grid.Row="1" 
                       Visibility="Collapsed" 
                       Height="auto" 
                       Margin="0,5,5,5"
                       AutoGenerateColumns="false"
                       AlternatingRowBackground="Aqua"
                       Opacity="80"
                       >
    <data:DataGrid.Columns>
        <data:DataGridTextColumn Header="Latitude" Binding="{Binding lat}" />
        <data:DataGridTextColumn Header="Longitude" Binding="{Binding long}" />
        <data:DataGridTextColumn Header="Time" Binding="{Binding time}" />
    </data:DataGrid.Columns>
</data:DataGrid>

Is it possible increase the single columns sizes to fill out the complete width of the datagrid?

Thanks,
Henrik

Edit: Columns with "*" as width are coming with the Silverlight SDK 4.

解决方案

Solution:

    void dg_sql_data_SizeChanged(object sender, SizeChangedEventArgs e)
    {
        DataGrid myDataGrid = (DataGrid)sender;
        // Do not change column size if Visibility State Changed
        if (myDataGrid.RenderSize.Width != 0)
        {
            double all_columns_sizes = 0.0;
            foreach (DataGridColumn dg_c in myDataGrid.Columns)
            {
                all_columns_sizes += dg_c.ActualWidth;
            }
            // Space available to fill ( -18 Standard vScrollbar)
            double space_available = (myDataGrid.RenderSize.Width - 18) - all_columns_sizes;
            foreach (DataGridColumn dg_c in myDataGrid.Columns)
            {
                dg_c.Width = new DataGridLength(dg_c.ActualWidth + (space_available / myDataGrid.Columns.Count));
            }
        }
    }

Result:

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