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7.6

Bind data to a gridview using datareader

Asked by Neste in Programming for ASP.NET, Microsoft Access Database, Microsoft Visual Basic.Net

Tags: Databinding, ASP.NET, Data Reader

Hi there, i am trying to Read some data from the db and bind it to gridview using datareader, i think my code should be right but anyway i don't get the data binded to the gridview and i don't get any errors...

Here is my code...

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             <table class="style1">
        <tr>
            <td class="style4">
                <asp:Label ID="lblSearch" runat="server" Text="Search:"></asp:Label>
            </td>
            <td class="style3">
                <asp:TextBox ID="txtSearch" runat="server" style="margin-left: 0px" 
                    Width="250px"></asp:TextBox>
            </td>
            <td class="style5">
                <asp:Button ID="btnSearch" runat="server" Text="Submit" />
            </td>
            <td>
                <asp:RequiredFieldValidator ID="rvSearch" runat="server" 
                    ErrorMessage="Field is required!" ControlToValidate="txtSearch"></asp:RequiredFieldValidator>
            </td>
        </tr>
        <tr>
            <td class="style2" colspan="4">
                &nbsp;</td>
        </tr>
        <tr>
            <td class="style2" colspan="4">
                <asp:GridView ID="gvSearch" AutoGenerateColumns="false" runat="server">
                </asp:GridView>
            </td>
        </tr>
    </table>
--------------------------------------
    Protected Sub btnSearch_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSearch.Click
        Search()
    End Sub
    Sub Search()
 
        Dim strSearch As String = txtSearch.Text
 
        Dim MyConn As OleDbConnection = New OleDbConnection(ConfigurationManager.AppSettings("strConn"))
        Dim MySQL As String = "SELECT * FROM [tblTopics] WHERE [tblTopics.TopicSubject] = @TopicSubject"
        Dim MyCmd As New OleDbCommand(MySQL, MyConn)
 
        With MyCmd.Parameters
            .Add(New OleDbParameter("@TopicSubject", strSearch))
        End With
 
        MyConn.Open()
 
        Dim objDataReader As OleDbDataReader = MyCmd.ExecuteReader()
 
        gvSearch.DataSource = objDataReader
        gvSearch.DataBind()
 
        MyConn.Close()
 
    End Sub
End Class

           
         

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Bind data to a gridview using datareader

Asked by Neste in Programming for ASP.NET, Microsoft Access Database, Microsoft Visual Basic.Net

Tags: Databinding, ASP.NET, Data Reader

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