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>
<%----%>
<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>
<%----%>
</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:
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
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
FileToDelete = Server.MapPath(UploadDirectory) + Session("UserNam") + ".xls"
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
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
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
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)))
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.
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