我implemten了Itemplate动态创建一个模板场
TemplateField isReqField = new TemplateField();
isReqField.HeaderText = "Lizenz anfordern";
isReqField.ItemTemplate = new GridViewTemplate(DataControlRowType.DataRow, DataControlRowState.Normal, "isRequested", "bool");
isReqField.EditItemTemplate = new GridViewTemplate(DataControlRowType.DataRow, DataControlRowState.Edit, "isRequested", "bool");
gvLicence.Columns.Add(isReqField);
我实现InstantiateIn
public void InstantiateIn(System.Web.UI.Control container)
{
...
CheckBox ckRequest = new CheckBox();
ckRequest.ID = "ckRequest";
ckRequest.DataBinding += new EventHandler(this.CkIsRequested_DataBinding);
container.Controls.Add(ckRequest);
...
}
与数据绑定处理程序
private void CkIsRequested_DataBinding(Object sender, EventArgs e)
{
CheckBox ckRequest = (CheckBox)sender;
GridViewRow row = (GridViewRow)ckRequest.NamingContainer;
ckRequest.Checked = (bool)DataBinder.Eval(row.DataItem, columnName);
}
但随后在程序的RowUpdating处理程序我找不到我的FindControl方法CheckBox控件：
protected void gvLicence_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
CheckBox chb = (CheckBox)gvLicence.Rows[e.RowIndex].FindControl("ckRequest");
bool requestValue = chb.Checked;
它抛出一个Exeption因为gvLicence.Rows [e.RowIndex] .FindControl（ “ckRequest”）为空。
非常感谢您的关注和帮助。
