Gridview 更新后不绑定答案

【问题标题】：Gridview is not binding after updateGridview 更新后不绑定
【发布时间】：2013-08-20 18:35:11
【问题描述】：

我有一个带有编辑/更新命令按钮的网格视图。我正在使用下拉菜单来设置 gridview 数据源 (ds2) 的选择命令，如下所示。

Protected Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Try
 If ddFilter.SelectedValue = "Title" Then ds2.SelectCommand = "SELECT * FROM [contentStore] WHERE ([Title] LIKE '%' + @Title + '%') order by [Title] asc"
 If ddFilter.SelectedValue = "URL" Then ds2.SelectCommand = "SELECT * FROM [contentStore] WHERE ([URL] LIKE '%' + @Title + '%') order by [URL] asc"
 If ddFilter.SelectedValue = "ID" Then ds2.SelectCommand = "SELECT * FROM [contentStore] WHERE ([ID] LIKE '%' + @Title + '%') order by [ID] asc"
 GridView1.DataBind()
Catch ex As Exception
 lblFilter.Text = "<h3>Filter Issue</h3>" & ex.ToString
 End Try
End Sub

问题在于，当我使用编辑/更新组合时，记录会正确更新，但 gridview 不会再次绑定自身。如果我再次按下按钮，gridview 会按预期重新显示更新的数据。

我的问题是如何让 Gridview 在更新后自行绑定

【问题讨论】：

发布编辑/更新命令的代码。
您是否尝试在row_command 事件处理程序的末尾重新绑定？

标签： vb.net gridview data-binding

【解决方案1】：

好吧，没有看到你的代码，我猜你需要在命令逻辑中复制按钮单击处理程序中的逻辑，以便执行和绑定网格的 SQL 再次发生，如下所示：

Sub GridView1_RowCommand(ByVal sender As Object, ByVal e As GridViewCommandEventArgs)
    If e.CommandName = "Edit" Then
        ' Do logic here

        If ddFilter.SelectedValue = "Title" Then 
            ds2.SelectCommand = "SELECT * FROM [contentStore] WHERE ([Title] LIKE '%' + @Title + '%') order by [Title] asc"
        End If

        If ddFilter.SelectedValue = "URL" Then 
            ds2.SelectCommand = "SELECT * FROM [contentStore] WHERE ([URL] LIKE '%' + @Title + '%') order by [URL] asc"
        End If

        If ddFilter.SelectedValue = "ID" Then 
            ds2.SelectCommand = "SELECT * FROM [contentStore] WHERE ([ID] LIKE '%' + @Title + '%') order by [ID] asc"
        End If

        GridView1.DataBind()
    End If
End Sub

【讨论】：