wpf 通过后台代码设置 DataGridTextColumn.ElementStyle
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Set DataGridTextColumn.ElementStyle by background code
提问by LIU
I have a datagrid in my user interface. A datatable will bind to it. Beacuse of datatable may have different format, so i add column and bind value for grid at code behind. see below:
我的用户界面中有一个数据网格。数据表将绑定到它。因为数据表可能有不同的格式，所以我在后面的代码中为网格添加了列和绑定值。见下文：
for (int iLoop = 0; iLoop < dtGroup.Columns.Count; iLoop++)
{
DataGridTextColumn dgColumn = new DataGridTextColumn();
dgColumn.Header = dtGroup.Columns[iLoop].ColumnName;
dgColumn.Binding = new Binding(dtGroup.Columns[iLoop].ColumnName);
this.dgGroupMatrix.Columns.Add(dgColumn);
}
What i want is let grid cell`s background color based on value.
我想要的是让网格单元格的背景颜色基于值。
I can do that by XAML.
我可以通过 XAML 做到这一点。
<DataGrid.Columns>
<DataGridTextColumn Binding="{Binding Path= operation_name}" Header="operation_name">
<DataGridTextColumn.ElementStyle>
<Style TargetType="{x:Type TextBlock}">
<Style.Triggers>
<Trigger Property="Text" Value="V31">
<Setter Property="Background" Value="LightGreen"/>
</Trigger>
</Style.Triggers>
</Style>
</DataGridTextColumn.ElementStyle>
</DataGridTextColumn>
</DataGrid.Columns>
But i can not set up grid's column at XAML, Beacuse of this grid will have different format.
但是我不能在 XAML 中设置网格的列，因为这个网格会有不同的格式。
What can i do?
我能做什么？
回答by Erno
Just do the same thing in code:
只需在代码中做同样的事情：
for (int iLoop = 0; iLoop < dtGroup.Columns.Count; iLoop++)
{
DataGridTextColumn dgColumn = new DataGridTextColumn();
dgColumn.Header = dtGroup.Columns[iLoop].ColumnName;
dgColumn.Binding = new Binding(dtGroup.Columns[iLoop].ColumnName);
Style columnStyle = new Style(typeof(TextBlock));
Trigger backgroundColorTrigger = new Trigger();
backgroundColorTrigger.Property = TextBlock.TextProperty;
backgroundColorTrigger.Value = "V31";
backgroundColorTrigger.Setters.Add(
new Setter(
TextBlock.BackgroundProperty,
new SolidColorBrush(Colors.LightGreen)));
columnStyle.Triggers.Add(backgroundColorTrigger);
dgColumn.ElementStyle = columnStyle;
this.dgGroupMatrix.Columns.Add(dgColumn);
}
