[alims]

السلام عليكم شباب

قومة باضافة LinkButton و ربط بقاعدة البيانات و لكن ظهر مشكلة و هى
عن الضغط على LinkButton المفروض ان يعرض البيانات عن طريق استعلام و لكن لا يفعل شى ما الحل مشكلة غريبة
و هذى الكود الخاصة ب LinkButton
كود vb.net

كود :

Dim con As New SqlConnection(ConfigurationManager.ConnectionStrings("ConnectionString").ConnectionString)
        If ConnectionState.Open Then con.Close()
        Dim str As String = "SELECT * from Sub_List WHERE (Sub_List=N'" + LinkButton1.Text + "')"
        Dim cmd As SqlCommand = New SqlCommand(str, con)
        If Not IsPostBack Then
            cmd.Connection = con
            Label1.Text = ""
            Label2.Text = ""
            Label3.Text = ""
            Image4.ImageUrl = ""
            con.Open()
            Dim drr As SqlDataReader = cmd.ExecuteReader()
            While (drr.Read())
                Label1.Text = drr("Sub_List")
                Label2.Text = drr("subject")
                Label3.Text = drr("Notes")
                Image4.ImageUrl = "~/img/" + drr("img")
            End While
        End If
    
        If ConnectionState.Open Then con.Close()

كود aspx

كود :

<asp:UpdatePanel ID="UpdatePanel1" runat="server">
            <ContentTemplate>
                <br />
                <asp:LinkButton ID="LinkButton1" runat="server" Font-Bold="True"
                    Font-Italic="False" Font-Overline="False" Font-Strikeout="False"
                    Font-Underline="False" style="color: #FFFFFF">LinkButton</asp:LinkButton>
                <br />
                <br />
                <asp:Timer ID="Timer1" runat="server" Interval="8888">
                </asp:Timer>
                <asp:Image ID="Image2" runat="server" Height="130px" Width="143px" />
                <br />
                <br />
                <asp:LinkButton ID="LinkButton2" runat="server" Font-Bold="True"
                    Font-Strikeout="False" Font-Underline="False" style="color: #FFFFFF">LinkButton</asp:LinkButton>
                <br />
                <br />
                <asp:Image ID="Image3" runat="server" Height="130px" Width="143px" />
            </ContentTemplate>
            <Triggers>
                <asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick" />
                <asp:AsyncPostBackTrigger ControlID="LinkButton1" EventName="Click" />
                <asp:AsyncPostBackTrigger ControlID="LinkButton2" EventName="Click" />
            </Triggers>
        </asp:UpdatePanel>