在后台代码中将BindData绑定到ITemplate for GridView [英] BindData to ITemplate for GridView in code behind

问题描述

如何以编程方式将数据绑定到GridView的自定义项目模板列？到目前为止，我已经做了类似这样的事情：

  TemplateField foo = new TemplateField（）; 
 foo.ItemTemplate = new bar（）; 
 this.GridView1.Columns.Add（foo）; 
  

其中bar是这样的：

  public class bar：ITemplate 
 {
 public bar（）
 {
 
} 
 
 public void InstantiateIn（Control container）
 {
 DropDownList ddl = new DropDownList（）; 
 container.Controls.Add（ddl）; 
 
 
  

（实际的下拉列表已填充）

但是，ITemplate不包含任何类型的数据绑定属性来实现，并且TemplateField类似乎也没有任何...

我该怎么办？

---

编辑：另一半能够处理更新到回到原始数据源。如果我只是处理rowupdate事件，我不会在oldvalues / newvalues列表中看到我的TemplateColumn。

解决方案

GridView.RowDataBound 事件。

这解释了一些事情...
http://www.aspnettutorials.com/tutorials/controls/dropdownlist-gridview-csharp.aspx

How do I programmatically bind data to a custom item template column for a GridView? So far, I've done something similar to this:

        TemplateField foo = new TemplateField();
        foo.ItemTemplate = new bar();
        this.GridView1.Columns.Add(foo);

where bar is like this:

public class bar : ITemplate
{
    public bar()
    {

    }

    public void InstantiateIn(Control container)
    {
        DropDownList ddl = new DropDownList();
        container.Controls.Add(ddl);
    }
}

(the actual dropdownlist is populated)

But ITemplate doesn't contain any kind of data binding properties to implement, and the TemplateField class doesn't seem to have any either...

What do I do?

---

Edit: The other half is being able to handle the updates to get back to the original datasource. If I just handle the rowupdate events, I don't see my TemplateColumn in the oldvalues/newvalues lists.

解决方案

You handle the GridView.RowDataBound event.

This explains things... http://www.aspnettutorials.com/tutorials/controls/dropdownlist-gridview-csharp.aspx

这篇关于在后台代码中将BindData绑定到ITemplate for GridView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！