如何从DataTemplate中检索元素并将其绑定到代码中? [英] How to retrieve an element from a DataTemplate and bind to it in code?

问题描述

嗨

我正在尝试动态创建一组DataGridTemplateColumns并将其应用于DataGrid.使用 DataGridTextColumn 很容易，并且允许我在创建列时绑定到Dependency属性(请参见下面的代码):

I am trying to create a set of DataGridTemplateColumns on the fly and apply that to a DataGrid. Using the DataGridTextColumn is easy and allows me to bind to a Dependency Property as I create the columns (see code below):

 

    private void CreateTextColumn(string Header, int width, string BindField)
    {
      DataGridTextColumn col = new DataGridTextColumn();
      col.Header = Header;
      col.Width = new DataGridLength(width, DataGridLengthUnitType.Star);
      col.Binding = new Binding(BindField);
      dgrid.Columns.Add(col);
    }

推荐答案

以下代码可能会对您有所帮助.

Probably the below code may help you. 

 DataGridTemplateColumn col = new DataGridTemplateColumn();
      col.Header = "New Columns";
      Binding b1 = new Binding("Description");
      b1.Mode = BindingMode.TwoWay;
      FrameworkElementFactory factory1 = new FrameworkElementFactory(typeof(TextBlock));
      factory1.SetValue(TextBlock.TextProperty, b1);
      DataTemplate dtemplate = new DataTemplate();
      dtemplate.VisualTree = factory1;
      col.CellTemplate = dtemplate;
      //DataTemplate dtemplate = (DataTemplate)FindResource("dataTemplate");
      //col.CellTemplate = dtemplate;
      dataGrid1.Columns.Add(col);

Another approach would be having your Binding in the DataTemplate like below. Then your code will work

<Window.Resources>
    <DataTemplate x:Key="dataTemplate">
      <TextBlock Text="{Binding Description}" />
    </DataTemplate>
  </Window.Resources>

这篇关于如何从DataTemplate中检索元素并将其绑定到代码中?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！