C# gridview行选择每次加载页面

您好，我正在使用gridview控件显示数据。单击gridview特定行时，我希望获得该行id

为此，我使用了以下代码：

 Protected Sub grdReport_SelectedIndexChanged(sender As Object, e As EventArgs) Handles grdReport.SelectedIndexChanged
             Dim row As GridViewRow = Me.grdReport.SelectedRow

        Dim InvoiceId As Integer = Convert.ToInt32(grdReport.DataKeys(row.RowIndex).Value)
        Session("InvoiceId") = InvoiceId


 End Sub

Protected Sub grdReport_RowCreated(sender As Object, e As GridViewRowEventArgs) Handles grdReport.RowCreated
        If e.Row.RowType = DataControlRowType.DataRow Then

            e.Row.Attributes.Add("onclick", Page.ClientScript.GetPostBackEventReference(Me.grdReport, "Select$" + e.Row.RowIndex.ToString()))

        End If
    End Sub


Protected Overrides Sub Render(ByVal writer As HtmlTextWriter)
    Dim gvr As GridViewRow
    For Each gvr In grdReport.Rows
        gvr.Attributes("onclick") = ClientScript.GetPostBackClientHyperlink(
                grdReport,
                String.Concat("Select$", gvr.RowIndex),
                True)
    Next

    MyBase.Render(writer)
End Sub

上面的代码对我来说工作得很好，但每当我点击gridview行，它就会再次加载页面，页面速度变慢

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请让我知道我能做些什么，这样整个页面就不会在行单击时一次又一次地加载。

首先，如果您想对鼠标单击事件做出反应，则selectedindexchanged不是一个好事件

填充数据时，始终对网格中的每一行执行selectedindexchanged

因此，如果你有100行代码在你看到网格之前执行100次

我建议使用cellmousedown或cellmouseclick

Private Sub DataGridView_CellMouseDown(sender As System.Object, e As System.Windows.Forms.DataGridViewCellMouseEventArgs) Handles DataGridView.CellMouseDown

    If e.Button = Windows.Forms.MouseButtons.Left And e.RowIndex <> -1 And e.ColumnIndex <> -1 Then

Dim InvoiceId As Integer =  DataGridView.Rows(e.RowIndex).Cells("InvoiceId").value

End Sub

Private子DataGridView\u CellMouseDown（发送方作为System.Object，e作为System.Windows.Forms.DataGridViewCellMouseEventArgs）处理DataGridView.CellMouseDown
如果e.Button=Windows.Forms.MouseButtons.Left和e.RowIndex-1以及e.ColumnIndex-1，则
Dim InvoiceId As Integer=DataGridView.Rows（e.RowIndex）.Cells（“InvoiceId”）.value
端接头

对于您的重新编码问题，我想这与您的渲染子调用有关

我认为你想完成的简单任务是不必要的