ASP.NET2.0中给GridView动态添加模板列并自动绑定数据

转/article/5596953.html

在孟子E章上看了一下，但是他的数据是不能自动绑定上去的，需要再RowDataBind事件里面处理。
改进了一下。可以指定datafield，让其自动绑定上去。
对于TextBox在InstantiateIn中增加事件：
tb.DataBinding += new EventHandler(tb_DataBinding);
然后在事件函数tb_DataBinding里面：
tb.Text = ((DataRowView)container.DataItem)[dataField].ToString();
这样GV就可以自动绑定到他的DataSource对应的DataTable中列dataField对应的数据了。

public class GridViewTemplate : ITemplate
{
private DataControlRowType templateType;
private string columnName;
private string dataField;

public GridViewTemplate(DataControlRowType type, string colname, string datafield)
{
templateType = type;
columnName = colname;
dataField = datafield;
}

public void InstantiateIn(System.Web.UI.Control container)
{
switch (templateType)
{
case DataControlRowType.Header:
Literal lc = new Literal();
lc.Text = columnName;
container.Controls.Add(lc);
break;
case DataControlRowType.DataRow:
Label lbl = new Label();
lbl.ID = container.ClientID;
lbl.DataBinding += new EventHandler(lbl_DataBinding);
container.Controls.Add(lbl);
break;
default:
break;
}
}
private void lbl_DataBinding(object sender, EventArgs e)
{
Label lbl = (Label)sender;
lbl.Width = Unit.Percentage(100);
GridViewRow container = (GridViewRow)lbl.NamingContainer;
lbl.Text = ((DataRowView)container.DataItem)[dataField].ToString();
lbl.Width = Unit.Pixel(70);
lbl.Style.Add("TEXT-ALIGN", "right");
}

}