ScriptManager is required on the page to use ASP.NET AJAX Script Components

[nUflAvOrS]

---------------------------------------------------------------
My page contains a scriptmanager and updatepanel.
What I would like to do is when user click on the checkbox within the gridview which is embeded inside a updatepanel. The gridview will changed the editindex into particular selected row index.

My code is here :

Protected Sub chkSelect_CheckedChanged(ByVal sender As Object, ByVal e As EventArgs)
        If IsPostBack Then
            Dim cb As CheckBox = DirectCast(sender, CheckBox)
            If cb IsNot Nothing Then
                If cb.Checked Then
                    Dim row As GridViewRow = DirectCast(cb.NamingContainer, GridViewRow)
                    Dim index As Integer = row.RowIndex
                    With grdListOfItem
                        .EditIndex = index
                        .DataSource = (CType(Session("myDatatable3"), DataTable)).DefaultView
                        .DataBind()
                    End With
                End If
            End If
        End If
    End Sub

<asp:TemplateField>
                <HeaderTemplate>
                    <asp:CheckBox ID="chkHeader" runat="server"  />
                </HeaderTemplate>
                <ItemTemplate>
                    <asp:CheckBox ID="chkSelect" runat="server"  AutoPostBack = "true" OnCheckedChanged = "chkSelect_CheckedChanged"/>
                </ItemTemplate>
            </asp:TemplateField>

But I get an error on .databind()
---------------------

System.InvalidOperationException was unhandled by user code Message="A ScriptManager is required on the page to use ASP.NET AJAX Script Components." Source="AjaxControlToolkit"

Hope someone can help me. Thanks a lot.

[danasegarane]

Form the Error msg I Could see that your page doent contain the script manager

Can you check it ?

[nUflAvOrS]

I have a scriptmanager within the page.

thanks danasegarane

[danasegarane]

Could you please post the script manager tag from the design ?

[mendhak]

Your UpdatePanel and its contents too, please!

[nUflAvOrS]

Thanks guys,

here we go :-)

<asp:Content ID="Content1" runat="server" ContentPlaceHolderID="ContentPlaceHolder1">
    <cc1:ScriptManager ID="ScriptManager1" runat="server">
    </cc1:ScriptManager>
    &nbsp;<br />
    
 
 
    <br />
    
    <div>
    <table id="Table2" cellSpacing=1 cellPadding=0 border=0 runat="server">
    <tr>
        <td vAlign=top align=left colspan="4">
            <asp:Image id="imgHeader" runat="server" Width="700px" ImageUrl="~/Images/Header.png"></asp:Image>
        </td>
    </tr>
    <tr>
        <td style="WIDTH: 60px; height: 20px;" vAlign=top align=left>
 
            &nbsp;&nbsp;<asp:Label id="lblIssue" runat="server" Width="80px" ForeColor="Navy" Text="Issue Number" Font-Size="10pt"></asp:Label> 
        </td>
        <td style="WIDTH: 200px; HEIGHT: 20px" vAlign=top align=left >
            &nbsp;&nbsp;<asp:DropDownList ID="ddlIssueNum" runat="server" Width="176px">
            </asp:DropDownList>
        </td>
    </tr>
    <tr>
        <td vAlign=top align=left colspan="4">
            <br />  
            <asp:Image id="imgHeader1" runat="server" Width="700px" ImageUrl="~/Images/ReqInfo.png"></asp:Image>
 
        </td>
    </tr>
    <tr>
        <td style="WIDTH: 60px; height: 20px;" vAlign=top align=left>
            &nbsp;&nbsp;<asp:Label id="lblAID" runat="server" Width="100px" ForeColor="Navy" Text="Authorized ID" Font-Size="10pt"></asp:Label>
        </td>
        <td style="WIDTH: 200px; HEIGHT: 20px" vAlign=top align=left >
            &nbsp;&nbsp;<asp:TextBox id="txtAID" runat="server"></asp:TextBox>
        </td>
        <td style="WIDTH: 60px; height: 20px;" vAlign=top align=left>
            &nbsp;&nbsp;<asp:Label id="lblName" runat="server" Width="100px" ForeColor="Navy" Text="Name" Font-Size="10pt"></asp:Label>
        </td>
        <td style="WIDTH: 200px; HEIGHT: 20px" vAlign=top align=left >
            &nbsp;&nbsp;<asp:TextBox id="txtName" runat="server"></asp:TextBox>
        </td>
    </tr>
    <tr>
        <td style="WIDTH: 60px; height: 20px;" vAlign=top align=left>
            &nbsp;&nbsp;<asp:Label id="lblDesign" runat="server" Width="100px" ForeColor="Navy" Text="Designation" Font-Size="10pt"></asp:Label>
        </td>
        <td style="WIDTH: 200px; HEIGHT: 20px" vAlign=top align=left >
            &nbsp;&nbsp;<asp:DropDownList id="ddlDesign" runat="server" Width="88px"></asp:DropDownList>
        </td>
        <td style="WIDTH: 60px; height: 20px;" vAlign=top align=left>
            &nbsp;&nbsp;<asp:Label id="lblCC" runat="server" Width="100px" ForeColor="Navy" Text="CC" Font-Size="10pt"></asp:Label>
        </td>
        <td style="WIDTH: 200px; HEIGHT: 20px" vAlign=top align=left >
            &nbsp;&nbsp;<asp:DropDownList id="ddlCC" runat="server" Width="88px"></asp:DropDownList>
        </td>
    </tr>
    <tr>
        <td style="WIDTH: 60px; height: 20px;" vAlign=top align=left>
            &nbsp;&nbsp;<asp:Label id="lblSubCon" runat="server" Width="100px" ForeColor="Navy" Text="Sub Con" Font-Size="10pt"></asp:Label>
        </td>
        <td style="WIDTH: 200px; HEIGHT: 20px" vAlign=top align=left >
            &nbsp;&nbsp;<asp:DropDownList id="ddlSubCon" runat="server" Width="88px"></asp:DropDownList>
        </td>
        <td style="WIDTH: 60px; height: 20px;" vAlign=top align=left>
            &nbsp;&nbsp;<asp:Label id="lblSubConName" runat="server" Width="100px" ForeColor="Navy" Text="Sub-Con Name" Font-Size="10pt"></asp:Label>
        </td>
        <td style="WIDTH: 200px; HEIGHT: 20px" vAlign=top align=left >
            &nbsp;&nbsp;<asp:DropDownList id="ddlSubConName" runat="server" Width="88px"></asp:DropDownList>
        </td>
    </tr>
    <tr>
        <td vAlign=top align=left colspan="4">
            <br />  
            <asp:Image id="Image1" runat="server" Width="700px" ImageUrl="~/Images/LItemSep.png"></asp:Image>
 
        </td>
    </tr>
    <tr>
        <td vAlign=top align=left colspan="4">
        <br />  
        <cc1:UpdatePanel id="updatePanel1" runat="server" >
            <ContentTemplate>
   
            <asp:GridView id="grdListOfItem" runat="server" BorderColor="#CCCCCC" AutoGenerateColumns="False" Font-Size="Medium" >
            <Columns>
           
            <asp:TemplateField>
                <HeaderTemplate>
                    <asp:CheckBox ID="chkHeader" runat="server"  />
                </HeaderTemplate>
                <ItemTemplate>
                    <asp:CheckBox ID="chkSelect" runat="server"  AutoPostBack = "true" OnCheckedChanged = "chkSelect_CheckedChanged"/>
                </ItemTemplate>
            </asp:TemplateField>
            <asp:TemplateField HeaderText="Tool ID">
                <ItemTemplate>
                     <%# DataBinder.Eval(Container.DataItem,"ID") %>
                </ItemTemplate>
            <ItemStyle Width="100px"></ItemStyle>
            </asp:TemplateField>
            <asp:TemplateField HeaderText="Tool Description">
                <ItemTemplate>
                     <%#DataBinder.Eval(Container.DataItem, "ID_Description")%>
                </ItemTemplate>
            <ItemStyle Width="250px"></ItemStyle>
            </asp:TemplateField>
            <asp:TemplateField HeaderText="Tons">
                <ItemTemplate>
                     <%#DataBinder.Eval(Container.DataItem, "Tons")%>
                </ItemTemplate>
            <ItemStyle Width="50px"></ItemStyle>
            </asp:TemplateField>
            <asp:TemplateField HeaderText="Status">
                <ItemTemplate>
                     <%#DataBinder.Eval(Container.DataItem, "Status")%>
                </ItemTemplate>
            <ItemStyle Width="120px"></ItemStyle>
            </asp:TemplateField>
            <asp:TemplateField HeaderText="Return Date">
                <ItemTemplate>
                     <%#DataBinder.Eval(Container.DataItem, "Return_Date")%>
                </ItemTemplate>
            <ItemStyle Width="120px"></ItemStyle>
                <EditItemTemplate>
                    <Aj:CalendarExtender ID="CalendarExtender1" runat="server">
                    </Aj:CalendarExtender>
                    <asp:TextBox ID="dtIssue" runat="server" Width="120px"></asp:TextBox><asp:ImageButton
                        ID="ImgCalenderF" runat="Server" AlternateText="Click to show calendar" ImageUrl="images/calendar_view_day.png"
                        Width="16px" />
                </EditItemTemplate>
            </asp:TemplateField>
            </Columns>
 
        <AlternatingRowStyle BackColor="White"></AlternatingRowStyle>
            <HeaderStyle BackColor="Lavender" BorderColor="Navy" BorderStyle="Solid" BorderWidth="1px" Font-Names="Tahoma" Font-Overline="False" Font-Size="Small" ForeColor="#0000C0" HorizontalAlign="Left"  />
        </asp:GridView> 
    
        </ContentTemplate>
     </cc1:UpdatePanel>
           
 
        </td>
    </tr>
    </table>
    </div>
    <br />
    &nbsp;<br />
    &nbsp; &nbsp; &nbsp;&nbsp;
</asp:Content>

Thanks for help. I glad to join this forum, I learn a lot from you guys.
really appreciated.

[mendhak]

Try setting Mode="Conditional" for the UpdatePanel.