Gridview Itemtemplate DropDownList 已启用

Question

我希望 DropDownList 被禁用，只有在我点击 Gridview 上的编辑 link 后才能启用它。截至目前，它显示 DropDownList 在编辑 link 之前和之后被禁用。
代码：

<asp:DropDownList ID="DropDownList1" runat="server" Height="30px" Width="190px" SelectedValue='<%# Eval("FAQGroup") %>' Enabled="false" >
    <asp:ListItem Value="Most asked FAQ"></asp:ListItem>
    <asp:ListItem Value="Normal FAQ"></asp:ListItem>
</asp:DropDownList>

aspx.cs

 protected void gvFAQ_RowEditing(object sender, GridViewEditEventArgs e)
    {
         gvFAQ.Columns[3].Visible = true;

         DropDownList DDL= (DropDownList)gvFAQ.Rows[e.NewEditIndex].FindControl("DropDownList1");
         DDL.Enabled = true;

         gvFAQ.EditIndex = e.NewEditIndex;
         bind();
    }

Answer 1

当您在 RowEditing 事件处理程序结束时调用 bind 时，GridView 将被清除并重新填充，并在每一行中创建一个新的 DropDownList。绑定数据后必须启用该控件，例如在RowDataBound事件处理程序中：

protected void gvFAQ_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        DropDownList ddl = e.Row.FindControl("DropDownList1") as DropDownList;
        ddl.Enabled = e.Row.RowIndex == gvFAQ.EditIndex;
    }
}

Gridview Itemtemplate DropDownList 已启用

Gridview Itemtemplate DropDownList Enabled

c#

asp.net

gridview

itemtemplate

dropdownbox