网格视图不显示单击按钮上的数据 [英] Grid View not showing data on single button click
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问题描述
我在gridview中有关于数据和按钮点击的问题
这是我的代码：
ASP：
I have problem regarding data and button click in gridview
this is my code :
ASP:
<table width="580px" cellspacing="5px" align="left">
<tr>
<td colspan="4">
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:ValidationSummary ID="ValidationSummary1" runat="server" HeaderText="Error Page :"
Width="100%" CssClass="validation" ShowMessageBox="True" Style="color: #FF0000"
Font-Names="Book Antiqua" Font-Size="10"></asp:ValidationSummary>
</ContentTemplate>
</asp:UpdatePanel>
</td>
</tr>
<tr>
<td valign="top" style="font-family: 'book Antiqua'; font-size: 10pt; color: #000000"
nowrap="nowrap" width="100px">
File Name <font color="#FF0000" size="2">*</font>
</td>
<td width="10px" valign="top" style="font-family: 'book Antiqua'; font-size: 10pt;
color: #000000">
:
</td>
<td>
<%--<asp:UpdatePanel ID="UpdatePanel4" runat="server">
<ContentTemplate>--%>
<dx:ASPxUploadControl ID="filenameASPxUploadControl" runat="server" CssFilePath="~/App_Themes/Office2010Silver/{0}/styles.css"
CssPostfix="Office2010Silver" Font-Names="Book Antiqua" Font-Size="10pt" Height="20px"
SpriteCssFilePath="~/App_Themes/Office2010Silver/{0}/sprite.css" AddUploadButtonsHorizontalPosition="Right"
ClientInstanceName="uploader" ShowProgressPanel="True" ForeColor="Black">
<ValidationSettings MaxFileSize="4000000" AllowedFileExtensions=".xls">
</ValidationSettings>
</dx:ASPxUploadControl>
<%-- </ContentTemplate>
</asp:UpdatePanel>--%>
</td>
<td align="right" valign="top">
<asp:UpdatePanel ID="UpdatePanel7" runat="server">
<ContentTemplate>
<asp:LinkButton ID="LinkButton1" runat="server">Download Template</asp:LinkButton>
</ContentTemplate>
</asp:UpdatePanel>
</td>
</tr>
<tr>
<td colspan="2">
</td>
<td colspan="2">
<table width="100%" style="margin-removed 0px">
<tr>
<td width="80px" align="left">
<asp:UpdatePanel ID="UpdatePanel2" runat="server">
<ContentTemplate>
<dx:ASPxButton ID="btnUpload" runat="server" EnableTheming="True" Text="Add" ClientInstanceName="btnUpload"
EnableDefaultAppearance="False" ImagePosition="Right" Width="78px" Height="25px"
Cursor="pointer" ForeColor="Black" Font-Names="Book Antiqua" BackgroundImage-HorizontalPosition="center"
BackgroundImage-VerticalPosition="top" VerticalAlign="Top" TabIndex="2" Font-Size="10pt"
AutoPostBack="False">
<HoverStyle ForeColor="#000000" BackgroundImage-Repeat="NoRepeat">
<BackgroundImage ImageUrl="Image/btnhover.png" Repeat="NoRepeat" HorizontalPosition="center"
VerticalPosition="top" />
</HoverStyle>
<Paddings PaddingTop="3px" />
<PressedStyle ForeColor="#7C7B7B" BackgroundImage-Repeat="NoRepeat">
<BackgroundImage ImageUrl="Image/hoverpress.png" Repeat="NoRepeat" HorizontalPosition="center"
VerticalPosition="top" />
</PressedStyle>
<FocusRectBorder BorderColor="#757575" BorderStyle="Dotted" BorderWidth="2px" />
<BackgroundImage ImageUrl="Image/Button.png" Repeat="NoRepeat" HorizontalPosition="center"
VerticalPosition="top" />
<ClientSideEvents Click="function(s, e) { uploader.UploadFile(); }" />
</dx:ASPxButton>
</ContentTemplate>
</asp:UpdatePanel>
</td>
<td width="80px">
<dx:ASPxButton ID="btnClear" runat="server" EnableTheming="True" Text="Clear" EnableDefaultAppearance="False"
ImagePosition="Right" Width="78px" Height="25px" Cursor="pointer" ForeColor="#000000"
Font-Names="Book Antiqua" BackgroundImage-HorizontalPosition="center" BackgroundImage-VerticalPosition="top"
VerticalAlign="Top" TabIndex="2" Font-Size="10pt" AutoPostBack="False">
<HoverStyle ForeColor="#000000" BackgroundImage-Repeat="NoRepeat">
<BackgroundImage ImageUrl="Image/btnhover.png" Repeat="NoRepeat" HorizontalPosition="center"
VerticalPosition="top" />
</HoverStyle>
<Paddings PaddingTop="3px" />
<PressedStyle ForeColor="#7C7B7B" BackgroundImage-Repeat="NoRepeat">
<BackgroundImage ImageUrl="Image/hoverpress.png" Repeat="NoRepeat" HorizontalPosition="center"
VerticalPosition="top" />
</PressedStyle>
<FocusRectBorder BorderColor="#757575" BorderStyle="Dotted" BorderWidth="2px" />
<BackgroundImage ImageUrl="Image/Button.png" Repeat="NoRepeat" HorizontalPosition="center"
VerticalPosition="top" />
</dx:ASPxButton>
</td>
<td>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td colspan="4" style="border-top-style: solid; border-color: #979595">
</td>
</tr>
<tr>
<td colspan="4">
<asp:UpdatePanel ID="UpdatePanel3" runat="server" >
<ContentTemplate>
<dx:ASPxGridView ID="grdData" runat="server" AutoGenerateColumns="True" CssFilePath="~/App_Themes/Office2010Silver/{0}/styles.css"
CssPostfix="Office2010Silver" Width="100%" KeyFieldName="SN" önRowDeleting="grdData_RowDeleting">
<Columns>
<dx:GridViewDataTextColumn VisibleIndex="0" Caption="No" Width="40px" ReadOnly="True"
HeaderStyle-HorizontalAlign="Center">
<DataItemTemplate>
<dx:ASPxLabel ID="lblRowID_T1" runat="server" Text='<%# Container.ItemIndex + 1 %>'>
</dx:ASPxLabel>
</DataItemTemplate>
<HeaderStyle Font-Names="book Antiqua" Font-Size="10pt" HorizontalAlign="Center"
VerticalAlign="Middle" Wrap="True" />
<CellStyle Wrap="False">
</CellStyle>
</dx:GridViewDataTextColumn>
<dx:GridViewDataTextColumn VisibleIndex="1" Caption="Tran Date" Width="19%" ReadOnly="True"
FieldName="TranDate">
<HeaderStyle Font-Names="book Antiqua" Font-Size="10pt" HorizontalAlign="Center"
VerticalAlign="Middle" Wrap="True" />
<CellStyle Wrap="False">
</CellStyle>
</dx:GridViewDataTextColumn>
<dx:GridViewDataTextColumn VisibleIndex="2" Caption="Partner Code" Width="19%" ReadOnly="True"
FieldName="PartnerCode">
<HeaderStyle Font-Names="book Antiqua" Font-Size="10pt" HorizontalAlign="Center"
VerticalAlign="Middle" Wrap="True" />
<CellStyle Wrap="False">
</CellStyle>
</dx:GridViewDataTextColumn>
<dx:GridViewDataTextColumn VisibleIndex="3" Caption="Partner Name" Width="19%" ReadOnly="True"
FieldName="PartnerName">
<HeaderStyle Font-Names="book Antiqua" Font-Size="10pt" HorizontalAlign="Center"
VerticalAlign="Middle" />
<CellStyle Wrap="False">
</CellStyle>
</dx:GridViewDataTextColumn>
<dx:GridViewDataTextColumn VisibleIndex="4" Caption="Serial Number" Width="19%" ReadOnly="True"
FieldName="SN">
<HeaderStyle Font-Names="book Antiqua" Font-Size="10pt" HorizontalAlign="Center"
VerticalAlign="Middle" />
<CellStyle Wrap="False">
</CellStyle>
</dx:GridViewDataTextColumn>
<dx:GridViewDataTextColumn VisibleIndex="5" Caption="MTM" Width="19%" ReadOnly="True"
FieldName="MTM">
<HeaderStyle Font-Names="book Antiqua" Font-Size="10pt" HorizontalAlign="Center"
VerticalAlign="Middle" />
<CellStyle Wrap="False">
</CellStyle>
</dx:GridViewDataTextColumn>
<dx:GridViewCommandColumn VisibleIndex="6" Caption="Delete" ButtonType="Link" Width="50px">
<DeleteButton Text="Delete" Visible="True">
</DeleteButton>
<HeaderStyle Font-Names="book Antiqua" Font-Size="10pt" HorizontalAlign="Center"
VerticalAlign="Middle" />
<CellStyle Wrap="False">
</CellStyle>
</dx:GridViewCommandColumn>
</Columns>
<SettingsBehavior ColumnResizeMode="Control" />
<Settings ShowHorizontalScrollBar="True" />
<Images SpriteCssFilePath="~/App_Themes/Office2010Silver/{0}/sprite.css">
<LoadingPanelOnStatusBar Url="~/App_Themes/Office2010Silver/GridView/Loading.gif">
</LoadingPanelOnStatusBar>
<LoadingPanel Url="~/App_Themes/Office2010Silver/GridView/Loading.gif">
</LoadingPanel>
</Images>
<ImagesFilterControl>
<LoadingPanel Url="~/App_Themes/Office2010Silver/GridView/Loading.gif">
</LoadingPanel>
</ImagesFilterControl>
<Styles CssFilePath="~/App_Themes/Office2010Silver/{0}/styles.css" CssPostfix="Office2010Silver"
AlternatingRow-BackColor="#F3F3F3">
<Header ImageSpacing="5px" SortingImageSpacing="5px">
</Header>
<AlternatingRow BackColor="#F3F3F3">
</AlternatingRow>
<LoadingPanel ImageSpacing="5px">
</LoadingPanel>
<CommandColumn CssClass="Office2010Silver">
</CommandColumn>
</Styles>
<StylesEditors ButtonEditCellSpacing="0">
<ProgressBar Height="21px">
</ProgressBar>
</StylesEditors>
</dx:ASPxGridView>
</ContentTemplate>
</asp:UpdatePanel>
</td>
</tr>
<tr>
<td colspan="4">
<asp:UpdatePanel ID="UpdatePanel6" runat="server">
<ContentTemplate>
<dx:ASPxButton ID="btnSubmit" runat="server" EnableTheming="True" Text="Submit" EnableDefaultAppearance="False"
ImagePosition="Right" Width="78px" Height="25px" Cursor="pointer" ForeColor="#000000"
Font-Names="Book Antiqua" BackgroundImage-HorizontalPosition="center" BackgroundImage-VerticalPosition="top"
VerticalAlign="Top" TabIndex="2" Font-Size="10pt" AutoPostBack="False">
<HoverStyle ForeColor="#000000" BackgroundImage-Repeat="NoRepeat">
<BackgroundImage ImageUrl="Image/btnhover.png" Repeat="NoRepeat" HorizontalPosition="center"
VerticalPosition="top" />
</HoverStyle>
<Paddings PaddingTop="3px" />
<PressedStyle ForeColor="#7C7B7B" BackgroundImage-Repeat="NoRepeat">
<BackgroundImage ImageUrl="Image/hoverpress.png" Repeat="NoRepeat" HorizontalPosition="center"
VerticalPosition="top" />
</PressedStyle>
<FocusRectBorder BorderColor="#757575" BorderStyle="Dotted" BorderWidth="2px" />
<BackgroundImage ImageUrl="Image/Button.png" Repeat="NoRepeat" HorizontalPosition="center"
VerticalPosition="top" />
</dx:ASPxButton>
</ContentTemplate>
</asp:UpdatePanel>
</td>
</tr>
<tr>
<td colspan="4">
<asp:CustomValidator ID="cvalPageError" runat="server" Display="None" Style="color: Black"
Font-Names="Book Antiqua" Font-Size="10pt"></asp:CustomValidator>
</td>
</tr>
</table>
VB Code:
VB Code:
Private Sub FillGridFroExcel(ByVal x As DataTable)
Dim bLoop As Boolean = True
Dim ino As Integer
Dim dt As DataTable
Dim dtGrid As DataTable
Dim dr As DataRow
Dim sBarCode As String = ""
Try
ino = 0
dt = x
dtGrid = Session("DT_DataTable_T1SO_ByFile")
If Session("BPType") = "T1" Then
For i = 1 To dt.Rows.Count - 1
Try
dr = dtGrid.NewRow()
dr.Item(0) = CType(dt.Rows(i).Item(0), Date)
dr.Item(1) = CType(dt.Rows(i).Item(1), String)
Try
dr.Item(2) = CType(dt.Rows(i).Item(2), String)
Catch ex As Exception
dr.Item(2) = ""
End Try
sBarCode = CType(dt.Rows(i).Item(3), String)
dr.Item(3) = CType(Right(sBarCode, 10), String)
dr.Item(4) = CType(Mid(sBarCode, 3, 8), String)
dr.Item(5) = CType("", String)
dtGrid.Rows.Add(dr)
dtGrid.AcceptChanges()
ino += 1
Catch ex As Exception
End Try
Next i
End If
Session("DT_DataTable_T1SO_ByFile") = dtGrid
Session("FillGrid") = dtGrid
grdData.DataSource = dtGrid
grdData.DataBind()
Catch ex As Exception
Throw New Exception(String.Format("File error ! {0}Please check your file, make sure use default template.", vbCrLf))
Me.cvalPageError.IsValid = False
Me.cvalPageError.ErrorMessage = ex.Message
'Return Nothing
End Try
End Sub
Protected Function OpenExcelFile(ByVal fileName As String) As Data.DataTable
Dim dataTable As New DataTable()
Try
Dim connectionString As String = String.Format("Provider=Microsoft.Jet.OLEDB.4.0; data source={0}; Extended Properties=Excel 8.0;", fileName)
Dim adapter As New OleDbDataAdapter("SELECT * FROM [Sheet1$]", connectionString)
adapter.Fill(dataTable)
Dim FileToDelete As String
'Set full path to file
FileToDelete = Server.MapPath(UploadDirectory) + Session("UserNam") + ".xls"
'Delete a file
File.Delete(FileToDelete)
Return dataTable
Catch ex As Exception
Throw New Exception(String.Format("File error ! {0}Please check your file, make sure use default template.", vbCrLf))
Me.cvalPageError.IsValid = False
Me.cvalPageError.ErrorMessage = ex.Message
Return dataTable
End Try
End Function
Private Function SavePostedFiles(ByVal uploadedFile As UploadedFile) As String
Try
If (Not uploadedFile.IsValid) Then
Return String.Empty
End If
Dim fileInfo As New FileInfo(uploadedFile.FileName)
Dim newFileName As String
'x = Replace(file.Name, file.Name, "ishaq")
newFileName = fileInfo.Name.Replace(fileInfo.Name, Session("UserNam"))
Session("FileName") = fileInfo.Name
Dim resFileName As String = Server.MapPath(UploadDirectory) + newFileName + ".xls"
uploadedFile.SaveAs(resFileName)
Return resFileName
Catch ex As Exception
Me.cvalPageError.IsValid = False
Me.cvalPageError.ErrorMessage = ex.Message
End Try
End Function
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Try
If Session("wasLogin") <> "Login" Then
Response.Redirect("~/Login.aspx", False)
Exit Sub
End If
Dim sl As New SSaveLog
Dim dts As New SServerInformation
sl.SaveLog(Session("CountryCode"), Session("UserNam"), dts.GetServerTime)
If (Not IsPostBack) Then
ClearPageSession()
BindTable()
If Session("BPType") = "T1" Then
'UpdatePanel3.Update()
grdData.DataSource = Session("FillGrid")
grdData.DataBind()
End If
Else
If Session("BPType") = "T1" Then
grdData.DataSource = Session("DT_DataTable_T1SO_ByFile")
grdData.DataBind()
End If
End If
'Session("FillGrid") = Nothing
Session("FillGrid") = Nothing
Catch ex As Exception
Me.cvalPageError.IsValid = False
Me.cvalPageError.ErrorMessage = ex.Message
End Try
End Sub
Protected Sub filenameASPxUploadControl_FileUploadComplete1(ByVal sender As Object, ByVal e As DevExpress.Web.ASPxUploadControl.FileUploadCompleteEventArgs) Handles filenameASPxUploadControl.FileUploadComplete
Try
FillGridFroExcel(OpenExcelFile(SavePostedFiles(e.UploadedFile)))
'Response.Redirect("~/T_T1SO_ByFile.aspx", False)
'e.CallbackData = Session("DT_DataTable_T1SO_ByFile")
Catch ex As Exception
Me.cvalPageError.IsValid = False
Me.cvalPageError.ErrorMessage = ex.Message
End Try
End Sub
Protected Sub btnUpload_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnUpload.Click
grdData.DataSource = Session("DT_DataTable_T1SO_ByFile")
grdData.DataBind()
End Sub
Please help me,
Gridview isnot showing data on single click of \"upload\" button, but if I click again \"upload\" button gridview will be showing data.
Please help me,
Gridview isnot showing data on single click of "upload" button, but if I click again "upload" button gridview will be showing data.
推荐答案
\", connectionString)
adapter.Fill(dataTable)
Dim FileToDelete As String
'Set full path to file
FileToDelete = Server.MapPath(UploadDirectory) + Session( \"UserNam\") + \".xls\"
'Delete a file
File.Delete(FileToDelete)
Return dataTable
Catch ex As Exception
Throw New Exception(String.Format(\"File error ! {0}Please check your file, make sure use default template.\", vbCrLf))
Me.cvalPageError.IsValid = False
Me.cvalPageError.ErrorMessage = ex.Message
Return dataTable
End Try
End Function
Private Function SavePostedFiles(ByVal uploadedFile As UploadedFile) As String
Try
If (Not uploadedFile.IsValid) Then
Return String.Empty
End If
Dim fileInfo As New FileInfo(uploadedFile.FileName)
Dim newFileName As String
'x = Replace(file.Name, file.Name, \"ishaq\")
newFileName = fileInfo.Name.Replace(fileInfo.Name, Session(\"UserNam\"))
Session(\"FileName\") = fileInfo.Name
Dim resFileName As String = Server.MapPath(UploadDirectory) + newFileName + \".xls\"
uploadedFile.SaveAs(resFileName)
Return resFileName
Catch ex As Exception
Me.cvalPageError.IsValid = False
Me.cvalPageError.ErrorMessage = ex.Message
End Try
End Function
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Try
If Session(\"wasLogin\") <> \"Login\" Then
Response.Redirect(\"~/Login.aspx\", False)
Exit Sub
End If
Dim sl As New SSaveLog
Dim dts As New SServerInformation
sl.SaveLog(Session(\"CountryCode\"), Session(\"UserNam\"), dts.GetServerTime)
If (Not IsPostBack) Then
ClearPageSession()
BindTable()
If Session(\"BPType\") = \"T1\" Then
'UpdatePanel3.Update()
grdData.DataSource = Session(\"FillGrid\")
grdData.DataBind()
End If
Else
If Session(\"BPType\") = \"T1\" Then
grdData.DataSource = Session(\"DT_DataTable_T1SO_ByFile\")
grdData.DataBind()
End If
End If
'Session(\"FillGrid\") = Nothing
Session(\"FillGrid\") = Nothing
Catch ex As Exception
Me.cvalPageError.IsValid = False
Me.cvalPageError.ErrorMessage = ex.Message
End Try
End Sub
Protected Sub filenameASPxUploadControl_FileUploadComplete1(ByVal sender As Object, ByVal e As DevExpress.Web.ASPxUploadControl.FileUploadCompleteEventArgs) Handles filenameASPxUploadControl.FileUploadComplete
Try
FillGridFroExcel(OpenExcelFile(SavePostedFiles(e.UploadedFile)))
'Respons e.Redirect(\"~/T_T1SO_ByFile.aspx\", False)
'e.CallbackData = Session(\"DT_DataTable_T1SO_ByFile\")
Catch ex As Exception
Me.cvalPageError.IsValid = False
Me.cvalPageError.ErrorMessage = ex.Message
End Try
End Sub
Protected Sub btnUpload_Click(ByVal sender As Object, ByVal e As Syste m.EventArgs) Handles btnUpload.Click
grdData.DataSource = Session(\"DT_DataTable_T1SO_ByFile\")
grdData.DataBind()
End Sub
", connectionString) adapter.Fill(dataTable) Dim FileToDelete As String 'Set full path to file FileToDelete = Server.MapPath(UploadDirectory) + Session("UserNam") + ".xls" 'Delete a file File.Delete(FileToDelete) Return dataTable Catch ex As Exception Throw New Exception(String.Format("File error ! {0}Please check your file, make sure use default template.", vbCrLf)) Me.cvalPageError.IsValid = False Me.cvalPageError.ErrorMessage = ex.Message Return dataTable End Try End Function Private Function SavePostedFiles(ByVal uploadedFile As UploadedFile) As String Try If (Not uploadedFile.IsValid) Then Return String.Empty End If Dim fileInfo As New FileInfo(uploadedFile.FileName) Dim newFileName As String 'x = Replace(file.Name, file.Name, "ishaq") newFileName = fileInfo.Name.Replace(fileInfo.Name, Session("UserNam")) Session("FileName") = fileInfo.Name Dim resFileName As String = Server.MapPath(UploadDirectory) + newFileName + ".xls" uploadedFile.SaveAs(resFileName) Return resFileName Catch ex As Exception Me.cvalPageError.IsValid = False Me.cvalPageError.ErrorMessage = ex.Message End Try End Function Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load Try If Session("wasLogin") <> "Login" Then Response.Redirect("~/Login.aspx", False) Exit Sub End If Dim sl As New SSaveLog Dim dts As New SServerInformation sl.SaveLog(Session("CountryCode"), Session("UserNam"), dts.GetServerTime) If (Not IsPostBack) Then ClearPageSession() BindTable() If Session("BPType") = "T1" Then 'UpdatePanel3.Update() grdData.DataSource = Session("FillGrid") grdData.DataBind() End If Else If Session("BPType") = "T1" Then grdData.DataSource = Session("DT_DataTable_T1SO_ByFile") grdData.DataBind() End If End If 'Session("FillGrid") = Nothing Session("FillGrid") = Nothing Catch ex As Exception Me.cvalPageError.IsValid = False Me.cvalPageError.ErrorMessage = ex.Message End Try End Sub Protected Sub filenameASPxUploadControl_FileUploadComplete1(ByVal sender As Object, ByVal e As DevExpress.Web.ASPxUploadControl.FileUploadCompleteEventArgs) Handles filenameASPxUploadControl.FileUploadComplete Try FillGridFroExcel(OpenExcelFile(SavePostedFiles(e.UploadedFile))) 'Response.Redirect("~/T_T1SO_ByFile.aspx", False) 'e.CallbackData = Session("DT_DataTable_T1SO_ByFile") Catch ex As Exception Me.cvalPageError.IsValid = False Me.cvalPageError.ErrorMessage = ex.Message End Try End Sub Protected Sub btnUpload_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnUpload.Click grdData.DataSource = Session("DT_DataTable_T1SO_ByFile") grdData.DataBind() End Sub
Please help me,
Gridview isnot showing data on single click of \"upload\" button, but if I click again \"upload\" button gridview will be showing data.
Please help me,
Gridview isnot showing data on single click of "upload" button, but if I click again "upload" button gridview will be showing data.
you can use updatepanel updatemode as conditional.
http://www.aspdotnet-suresh.com/2012/05/ajax-updapanel-control-with-triggers.html[^]
or you can use timer events.
http://msdn.microsoft.com/en-us/library/cc295400.aspx[^]
you can use updatepanel updatemode as conditional.
http://www.aspdotnet-suresh.com/2012/05/ajax-updapanel-control-with-triggers.html[^]
or you can use timer events.
http://msdn.microsoft.com/en-us/library/cc295400.aspx[^]
Hi
Be clear with your question, what is the requirement you want to achieve what type of trouble you are facing. Just comment the update panel and try the code.
On a button click you want to bring the data from Database and bind that to the grid view? is this your intention?
Hi
Be clear with your question, what is the requirement you want to achieve what type of trouble you are facing. Just comment the update panel and try the code.
On a button click you want to bring the data from Database and bind that to the grid view? is this your intention?
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