如何访问ASP.NET Repeater ItemDataBound事件中的数据源字段？

Question

我有一个Repeater控件绑定到Linq查询的结果.

我想获得ItemDataBound事件中某个数据源字段的值,但我不知道如何做到这一点.

Answer 1

取决于DataSource ...如果您的DataSource是DataTable,那么您的DataItem包含DataRowView:

protected void rptMyReteater_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
    if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
    {
        Button b = e.Item.FindControl("myButton") as Button; 
        DataRowView drv = e.Item.DataItem as DataRowView;
        b.CommandArgument = drv.Row["ID_COLUMN_NAME"].ToString();
    }
}

Answer 2

你可以使用:e.Item.DataItem.

示例:Repeater.ItemDataBound事件

// This event is raised for the header, the footer, separators, and items.
void R1_ItemDataBound(Object Sender, RepeaterItemEventArgs e)
{
  // Execute the following logic for Items and Alternating Items.
  if (e.Item.ItemType == ListItemType.Item ||
      e.Item.ItemType == ListItemType.AlternatingItem)
  {
    if (((Evaluation)e.Item.DataItem).Rating == "Good")
    {
      ((Label)e.Item.FindControl("RatingLabel")).Text= "<b>***Good***</b>";
    }
  }
} 

Answer 3

可以从EventArgs中找到用于当前项的数据.

RepeaterItemEventArgs e

e.Item.DataItem