我在GridView
的标头中有一个DropDownList
,我将它的数据绑定在RowDataBound
中并将其放入UpdatePanel
。我想在选择(回发)后保留选定的值。怎么样 ?如何在下拉列表中保留选定的值
这里我填写的下拉列表
保护的子gvStaffList_RowDataBound(发送者为对象,E作为System.Web.UI.WebControls.GridViewRowEventArgs)处理gvStaffList.RowDataBound
If e.Row.RowType = DataControlRowType.Header Then
' Fill the header dropdownlist from the datatable and displaying only the unique values (NOT from database directly)
' ============================= Supervisor name ======================================================
Dim ddlSupervisors As DropDownList = DirectCast(e.Row.FindControl("ddlSupervisors"), DropDownList)
For x As Integer = 0 To data.Rows.Count - 1
If ddlSupervisors.Items.FindByValue(data.Rows(x).Item("SuperId")) Is Nothing Then
ddlSupervisors.Items.Add(New ListItem(data.Rows(x).Item("SuperName"), data.Rows(x).Item("SuperId")))
End If
Next
ddlSupervisors.Items.Insert(0, New ListItem("All", "All"))
' ============================= Supervisor name ======================================================
Dim ddlPostTitle As DropDownList = DirectCast(e.Row.FindControl("ddlPostTitle"), DropDownList)
For x As Integer = 0 To data.Rows.Count - 1
If ddlPostTitle.Items.FindByValue(data.Rows(x).Item(1)) Is Nothing Then
ddlPostTitle.Items.Add(New ListItem(data.Rows(x).Item(1), data.Rows(x).Item(1)))
End If
Next
ddlPostTitle.Items.Insert(0, New ListItem("All", "All"))
DO您在下拉列表 – 2012-07-29 08:29:48
你好有一个SelectedIndexChanged事件,您可以使用会话来存储选定值 – 2012-07-29 08:30:20