gridview problems ..wehn i add download linkbutton

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hey all

in m girdview i add linkbutton downlaod when i run follwoing error occur

DataBinding: 'System.Data.DataRowView' does not contain a property with the name 'Uploadfile'.

girdivew is

C#

 <asp:GridView ID="GridView1" runat="server" CellPadding="4" ForeColor="#333333" 
        GridLines="None">
        <Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton ID="Linkdwnld" runat="server"
CommandArgument='<%# Eval("Uploadfile") %>' CommandName="cmd">Download</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
        <AlternatingRowStyle BackColor="White" ForeColor="#284775" />
        <EditRowStyle BackColor="#999999" />
        <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
        <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
        <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
        <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
        <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
        <SortedAscendingCellStyle BackColor="#E9E7E2" />
        <SortedAscendingHeaderStyle BackColor="#506C8C" />
        <SortedDescendingCellStyle BackColor="#FFFDF8" />
        <SortedDescendingHeaderStyle BackColor="#6F8DAE" />
    </asp:GridView>

sql query is

C#

select dbo.Document.DocID as [Document ID],dbo.Document.DocName as [Document Name],
dbo.Document.Uploadfile as [Uploaded File],dbo.Document.UploadedBy as [Uploaded By],
dbo.DocType.DocType as [Document Type],dbo.Department.DepType as [Department Type]
from dbo.Document left join dbo.DocType on dbo.Document.DocTypeID=dbo.DocType.DocTypeID left join 
dbo.Department on dbo.Document.DepID=dbo.Department.DepID left  join dbo.Users on dbo.Document.DocID=dbo.Users.UserID

please help me about this

Posted 21-Apr-13 13:45pm

ariesareej

Updated 21-Apr-13 13:51pm

v2

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_Amy · Accepted Answer · 2013-04-21T16:59:00

The error is from your Sql Query. You should never give a space in a column name. Try this:
SQL:

SQL

select dbo.Document.DocID as [DocumentID],dbo.Document.DocName as [DocumentName],
dbo.Document.Uploadfile as [UploadedFile],dbo.Document.UploadedBy as [UploadedBy],
dbo.DocType.DocType as [DocumentType],dbo.Department.DepType as [DepartmentType]
from dbo.Document left join dbo.DocType on dbo.Document.DocTypeID=dbo.DocType.DocTypeID left join 
dbo.Department on dbo.Document.DepID=dbo.Department.DepID left  join dbo.Users on dbo.Document.DocID=dbo.Users.UserID

HTML:

ASP.NET

<asp:gridview id="GridView1" runat="server" cellpadding="4" forecolor="#333333" >
        GridLines="None">
        <columns>
<asp:templatefield>
<itemtemplate>
<asp:linkbutton id="Linkdwnld" runat="server" CommandArgument='<%# Eval("UploadFile") %>' CommandName="cmd">Download</asp:linkbutton>
</itemtemplate>
</asp:templatefield>
</columns></asp:gridview>

--Amit