通过后台代码设置DataGridTextColumn.ElementStyle [英] Set DataGridTextColumn.ElementStyle by background code

问题描述

我的用户界面中有一个datagrid。数据表将绑定到它。
datac可能有不同的格式，所以我添加列和绑定值为网格代码后面。 （int iLoop = 0; iLoop< dtGroup.Columns.Count; iLoop ++）



$ b $
DataGridTextColumn dgColumn = new DataGridTextColumn（）;
dgColumn.Header = dtGroup.Columns [iLoop] .ColumnName;
dgColumn.Binding = new Binding（dtGroup.Columns [iLoop] .ColumnName）;


this.dgGroupMatrix.Columns.Add（dgColumn）;
}

我想要的是让网格单元的背景颜色基于值。 / p>

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 =TextValue =V31> 
< Setter Property =BackgroundValue =LightGreen/> 
< / Trigger> 
< /Style.Triggers> 
< / Style> 
< /DataGridTextColumn.ElementStyle> 
< / DataGridTextColumn> 
< /DataGrid.Columns> 
  

但是我无法在XAML设置网格的列，该网格的Beacuse将具有不同的格式。 / p>

我可以做什么？

解决方案

只要做同样的事情代码：

  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）; 
 
样式columnStyle = new Style（typeof（TextBlock））; 
触发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）; 
} 
  

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:

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.

I can do that by XAML.

<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.

What can i do?

解决方案

Just do the same thing in code:

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);
}

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