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Why is there duplicate columns on my gridview? Please help

Posted on 2012-03-31
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Last Modified: 2012-03-31
Hi all I have the following gridview in my aspx page

 <asp:GridView ID="GridView1" runat="server">
        <Columns>
        <asp:BoundField DataField="RName" HeaderText="Row Number" />
        <asp:BoundField DataField="RContact" HeaderText="Row Number" />
        <asp:BoundField DataField="RPostalCode" HeaderText="Row Number" />
        <asp:BoundField DataField="RAddress" HeaderText="Row Number" />
        <asp:BoundField DataField="RUnitNo" HeaderText="Row Number" />
        <asp:BoundField DataField="Size" HeaderText="Row Number" />
        <asp:BoundField DataField="Weight" HeaderText="Row Number" />
        <asp:BoundField DataField="Price" HeaderText="Row Number" />

        <asp:TemplateField HeaderText="Action">
            <ItemTemplate>
                <asp:Button ID="Button1" runat="server" Text="Button" />
            </ItemTemplate>
        </asp:TemplateField>
        </Columns>
        </asp:GridView>


I have the following datatable that bind to it in the code behind

Dim dt As New DataTable()

        dt.Columns.Add(New DataColumn("RName", GetType(String)))
        dt.Columns.Add(New DataColumn("RContact", GetType(String)))
        dt.Columns.Add(New DataColumn("RPostalCode", GetType(String)))
        dt.Columns.Add(New DataColumn("RAddress", GetType(String)))
        dt.Columns.Add(New DataColumn("RUnitNo", GetType(String)))
        dt.Columns.Add(New DataColumn("Size", GetType(String)))
        dt.Columns.Add(New DataColumn("Weight", GetType(String)))
        dt.Columns.Add(New DataColumn("Price", GetType(String)))
     
        Dim dr As DataRow = dt.NewRow()

        dr("RName") = txtRecipientName.Text
        dr("RContact") = txtRecipientContact.Text
        dr("RPostalCode") = txtRecipientPostalCode.Text
        dr("RAddress") = txtRecipientAddress.Text
        dr("RUnitNo") = txtRecipientUnitNo.Text
        dr("Size") = txtSize.Text
        dr("Weight") = txtWeight.Text
        dr("Price") = MainModule.CalculateRate(txtWeight.Text, txtSize.Text)
        dt.Rows.Add(dr)
     

        GridView1.Visible = True

        GridView1.DataSource = dt

        GridView1.DataBind()


The problem is that my gridview will have duplicate column and data e.g

Example after populating gridview
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Question by:leechoonhwee
2 Comments
 
LVL 5

Accepted Solution

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Aruiz04 earned 500 total points
ID: 37791423
on this line
 <asp:GridView ID="GridView1" runat="server">
add tag "autogeneratecolumns=false"

 <asp:GridView ID="GridView1" runat="server" autogeneratecolumns = false>
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LVL 9

Author Closing Comment

by:leechoonhwee
ID: 37791471
Thanks!
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