GridView control exporting to Excel in Net 2.0

Well, I did my homework and found 33,868 references to issues with

the gridview control and Excel, none of which were close to whats happening

with my app. I have a Gridview control on my VB.NET main page and when I

right click on it the popup allows me to export to Excel just fine..5-6 columns,

less than 100 rows..when I do the same on another page I get an Excel error popup :

"This web query returned no data.."..both grids have a (Select) button in the 1st column.

The one that works is simply that...the one that doesn't has the Button.Text defined

as something else. The message is untraceable in Excel, as it has no error # displayed

with it in the popup. Tongue Tied   Should I search MSDN? I'm using VS2005 Pro, Excel 2002..

Thanks for helping..  Cool

 

0
BGriffin_TPA
9/1/2007 4:20:30 PM
asp.net.presentation-controls 72751 articles. 3 followers. Follow

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Hi:

BGriffin_TPA:
The one that works is simply that...the one that doesn't has the Button.

  I'm not quite sure what do you mean by this. Could you please post relevant code of these two pages? What's the different?

Thanks


Sincerely,
Allen Chen
Microsoft Online Community Support

Please remember to mark the replies as answers if they help and unmark them if they provide no help.
0
Allen
9/3/2007 6:13:30 AM

Allen :

Thanks for responding..here it is.

==== This one works ======

*** code behind ***

    Protected Sub GridView2_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles GridView2.SelectedIndexChanged

        FillImage()
        If intCI = 1 Then
            lblMsg.Text = "You must login as a member to buy this signal."
            'lblMsg.UpdateAfterCallBack = True
            ModalPopupExtender4.Show()
            '*** problem with the extender at this point..go to Login!!!
            'ModalPopupExtender1.Show()
        Else
            Call CheckForBought_MoreRecent()
        End If

    End Sub

---HTML ---

        <ASP:panel ID="Grid" runat="server" style="left: 288px; position: absolute; top: 392px"
            EnableTheming="False" Height="171px" Width="472px" ScrollBars="Vertical">
            <ASP:GridView ID="GridView2" runat="server" Style="left: 0px; position: absolute;
                top: 0px" Width="456px" SelectedIndex="0"
                OnSelectedIndexChanged="GridView2_SelectedIndexChanged"
                EnableTheming="False" Height="192px" 
                ShowHeader="False" AutoGenerateSelectButton="True" UseAccessibleHeader="False" >
                <SelectedRowStyle BackColor="#FFFF80" />
                <AlternatingRowStyle BackColor="#C0FFC0" />
                <RowStyle BackColor="White" />
            </ASP:GridView>
        </ASP:Panel>

==== This one doesn't work ======

*** code behind ***

    '**********************************************
    Protected Sub GridH_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridH.RowDataBound

        Dim row As GridViewRow = e.Row
        Dim selectCell As TableCell = row.Cells(0)

        If (selectCell.Controls.Count > 0) Then
            Dim selectControl As LinkButton = selectCell.Controls(0)
            If Not IsDBNull(selectControl) Then _
                selectControl.Text = dsConn.Tables("HS").Rows(e.Row.RowIndex).Item(0)
        End If

    End Sub
    '**********************************************
    Protected Sub GridH_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles GridH.SelectedIndexChanged
        Dim lngIndex As Long, intGrid As Integer

        blnBoughtOrMoreRecent = False
        lngIndex = GridH.SelectedIndex
        '*** needs to be here to check against
        txtSymbol.Text = dsConn.Tables("HS").Rows(lngIndex).Item(0)
        '*** if already bought, ignore the click
        If GridH.Rows(lngIndex).Cells(2).Text = "No " Then
            '*** a newer signal available?..
            With dsConn.Tables("Grid")
                If .Rows.Count > 0 Then
                    '*** search the grid from default page.
                    For intGrid = 0 To .Rows.Count - 1
                        strSymbol = .Rows(intGrid).Item(0)
                        dtSigDate = CDate(.Rows(intGrid).Item(3))
                        '*** yes, there is.
                        If strSymbol = txtSymbol.Text And dtSigDate > GridH.Rows(lngIndex).Cells(3).Text Then
                            blnBoughtOrMoreRecent = True
                            Exit For
                        End If
                    Next
                    '*** if there was, show message box.
                    If blnBoughtOrMoreRecent Then
                        lblMsg.Text = "There is a more recent signal."
                        ModalPopupExtender4.Show()
                        Exit Sub
                    End If
                End If
            End With

            txtCompany.Text = GridH.Rows(lngIndex).Cells(1).Text
            Call SelectQuerySQL( _
                "SELECT Exchange FROM SI WHERE Symbol ='" & txtSymbol.Text & "'", "S")
            txtMarket.Text = dsConn.Tables("S").Rows(0).Item(0)
            dsConn.Tables.Remove("S")

            txtReliability.Text = GridH.Rows(lngIndex).Cells(6).Text
            txtDelDate.Text = GridH.Rows(lngIndex).Cells(3).Text
            txtUserID.Text = UserID.Text
            BuyItNameOnCard.Text = NameOnCard.Text
            txtCardNum.Text = CrCardNum.Text
            txtCardType.Text = cmbCardType.Text
            ExpirDate.Text = cmbExpMonth.Text & " / " & cmbExpYear.Text

            strSymbol = txtSymbol.Text
            strSymbolFor = txtCompany.Text
            dtSigDate = CDate(txtDelDate.Text)
            strCCN = txtCardNum.Text
            bytR = CByte(txtReliability.Text)
            strSignal = GridH.Rows(lngIndex).Cells(4).Text
            strMarket = txtMarket.Text
            '*** enc symbol and deliv date are used by OkbuyIt
            Call SelectQuerySQL( _
                "SELECT F9,F10 FROM Y WHERE F1 ='" & txtSymbol.Text & _
                "' AND DateValue(F4)='" & txtDelDate.Text & "' AND F8=" & intCI, "DT")
            strAHSymbol = dsConn.Tables("DT").Rows(0).Item(0)
            strAHF8 = dsConn.Tables("DT").Rows(0).Item(1)
            dsConn.Tables.Remove("DT")
            ModalPopupExtender3.Show()
        End If

    End Sub

---HTML ---

        <ASP:Panel ID="ADG" runat="server" style="left: 268px; position: absolute; top: 240px; z-index: 107;" Height="181px" Width="592px" ScrollBars="Vertical">
            <ASP:GridView ID="GridH" runat="server" EnableTheming="False"
                Font-Bold="True" Height="181px" PageSize="12" SelectedIndex="0" ShowHeader="False"
                Style="left: 0px; cursor: hand; position: absolute; top: 0px" TabIndex="19"
                Width="576px" AutoGenerateSelectButton="True" >
                <RowStyle Font-Bold="False" Font-Size="Smaller" BackColor="White" />
                <EditRowStyle HorizontalAlign="Left" VerticalAlign="Middle" />
                <SelectedRowStyle BackColor="#FFC080" />
                <PagerStyle Font-Bold="False" />
                <HeaderStyle Font-Bold="False" Font-Italic="False" Font-Strikeout="False" />
                <AlternatingRowStyle BackColor="#80FF80" BorderColor="White" BorderStyle="None" />
            </ASP:GridView>
        </ASP:Panel>

Thanks for your help..Cool

0
BGriffin_TPA
9/3/2007 8:56:32 PM
Reply:

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