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TreeView Bind Error:"This constraint cannot be enabled as not all values have corresponding parent values."

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shady
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shady asked on 16 Nov 2015, 08:48 AM

Hi everyone.
I've a problem with my TreeView controls. the problem is;

When I try to bind data from DB to RadTreeView, it gives this error : "This constraint cannot be enabled as not all values have corresponding parent values."

Default.aspx

<body>
    <form id="form1" runat="server">
        <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:MedsConnectionString %>" SelectCommand="sp_MAIN_ACC_TREE" SelectCommandType="StoredProcedure">
            <SelectParameters>
                <asp:Parameter DefaultValue="1" Name="ACC_id_A" Type="Int32" />
            </SelectParameters>
        </asp:SqlDataSource>
        <br />
    <telerik:RadScriptManager ID="RadScriptManager1" runat="server">
        <Scripts>
            <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.Core.js" />
            <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQuery.js" />
            <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQueryInclude.js" />
        </Scripts>
    </telerik:RadScriptManager>
    <script type="text/javascript">
        //Put your JavaScript code here.
    </script>
    <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
    </telerik:RadAjaxManager>
    <div>

        <telerik:RadTreeView ID="RadTreeView1" Runat="server" DataFieldID="ACC_ID_A" DataFieldParentID="ACC_PARENT_A" DataSourceID="SqlDataSource1" DataTextField="ACC_NAME_A" DataValueField="ACC_ID_A" Height="131px" OnNodeClick="RadTreeView1_NodeClick">
        </telerik:RadTreeView>

    </div>
    </form>
</body>

 DataTable : 

ACC_ID_A           ACC_NAME_A           ACC_PARENT_A

 

 1                            Accounting tree                  NULL

 2                            essential                               1

 3                            Cars                                      2

4                              Ambulance                          3

 

stored procedure : 

ALTER PROCEDURE [dbo].[sp_MAIN_ACC_TREE]
@ACC_id_A as int
AS
BEGIN
with subtree2(ACC_ID_A , ACC_NAME_A , ACC_PARENT_A)
as
(
select * from MAIN_ACC_A where ACC_PARENT_A = @ACC_id_A
union all
select e.ACC_ID_A, e.ACC_NAME_A ,e.ACC_PARENT_A from MAIN_ACC_A
as e inner join subtree2 on subtree2.ACC_ID_A=e.ACC_PARENT_A
)
select * from subtree2
order by ACC_PARENT_A
END

 

I need solve this problem necessary

thanks

1 Answer, 1 is accepted

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Nencho
Telerik team
answered on 19 Nov 2015, 07:40 AM
Hello Shady,

The data structure and configuration of the RadTreeView is correct. The reason for the experienced issue is probably related with the stored procedure that you are using. Please make sure that the data is served correctly from the stored procedure that you use.

Regards,
Nencho
Telerik
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shady
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Nencho
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