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RadGrid - An item with the same key has already been added

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Guillermo
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Guillermo asked on 12 Nov 2014, 03:44 PM
I have a RadGrid with GridCalculatedColumn when rebind...

An item with the same key has already been added.

I'm running 2013.3.1015.45.

ASPX

<telerik:RadGrid ID="grillaAfectos" runat="server" AllowPaging="True" AllowSorting="True"
GridLines="None" AutoGenerateColumns="true" PageSize="10"  EnableLinqExpressions="false"
Skin="Metro" Visible="true" Width="98%" OnNeedDataSource="grillaAfectos_NeedDataSource" OnItemDataBound="grillaAfectos_ItemDataBound">
<MasterTableView AutoGenerateColumns="False" AllowCustomPaging="true" NoMasterRecordsText="No se encontraron registros para mostrar.">
<Columns>
<telerik:GridBoundColumn HeaderText="Cuenta Contable" DataField="Detalle.NumeroCuenta"  HeaderStyle-Width="20%">
</telerik:GridBoundColumn>                                                                                   
<telerik:GridCalculatedColumn HeaderText="Descripcion" DataType="System.String" DataFields="Proveedor.ProveedorID, Detalle.CodigoDocumentoPago.Codigo, Detalle.NumeroDocumento, Detalle.FechaMovimiento.Date" Expression='{0} + " " + {1} + "/" + {2} + " " + {3}'>
</telerik:GridCalculatedColumn>
<telerik:GridBoundColumn HeaderText="Monto" DataField="Total" DataFormatString="{0:C0}" ItemStyle-HorizontalAlign="Right" >
</telerik:GridBoundColumn>
<telerik:GridBoundColumn HeaderText="Nuevo Monto" DataField="MontoNuevo" DataFormatString="{0:C0}" ItemStyle-HorizontalAlign="Right" >
</telerik:GridBoundColumn>
<telerik:GridTemplateColumn HeaderStyle-Width="20px" FilterControlAltText="Filter TemplateColumn column" HeaderText="Acción" UniqueName="TemplateColumn" ItemStyle-HorizontalAlign="Center" >
<%--<ItemTemplate>
<asp:HyperLink ID="lnkEditar" runat="server" ImageUrl="~/Content/Img/Grid/edit.png" BorderWidth="0px" BorderStyle="None" ToolTip="Editar" NavigateUrl=<%#"Javascript:onBtnActionsClick('ActualizarTasas.aspx?id=" + Eval("DocumentosPagadosID").ToString() + "&dolar=" + ViewState("dolar") + "','Tasas','Tasas',800,200)"%> Visible="false"/>
</ItemTemplate>--%>
</telerik:GridTemplateColumn>
<telerik:GridBoundColumn HeaderText="" DataField="FacturaDetalleID" Visible="false" >
</telerik:GridBoundColumn>
</Columns>
</MasterTableView>
<ClientSettings AllowColumnsReorder="True" AllowDragToGroup="True" ReorderColumnsOnClient="True">
</ClientSettings>
</telerik:RadGrid>

Code Behind
Dim grillaAfectos As RadGrid = DirectCast(RadPanelBar5.FindItemByValue("Desembolsos").FindControl("grillaAfectos"), RadGrid)
grillaAfectos.DataSource = objNotaDebito.Tasas
          grillaAfectos.DataBind()
Protected Sub grillaAfectos_NeedDataSource(sender As Object, e As GridNeedDataSourceEventArgs)
            objNotaDebito = DirectCast(objCache("NotaDebito"), NotaDebitoVO)
            Dim grillaAfectos As RadGrid = DirectCast(RadPanelBar5.FindItemByValue("Desembolsos").FindControl("grillaAfectos"), RadGrid)
            Dim startIndex As Int32 = grillaAfectos.CurrentPageIndex
            Dim maximumRows As Int32 = grillaAfectos.PageSize
            If objNotaDebito.Tasas IsNot Nothing AndAlso objNotaDebito.Tasas.Count > 0 Then
                objNotaDebito.Tasas = objNotaDebito.Tasas.Skip((startIndex) * maximumRows).Take(maximumRows).ToList()
            End If
 
            grillaAfectos.DataSource = objNotaDebito.Tasas
        End Sub


If I remove this column works perfectly....

5 Answers, 1 is accepted

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Pavlina
Telerik team
answered on 17 Nov 2014, 03:23 PM
Hello,

Could you download the latest internal build of Telerik UI controls and make sure that the same problem still persists?

Regards,
Pavlina
Telerik
 

Check out the Telerik Platform - the only platform that combines a rich set of UI tools with powerful cloud services to develop web, hybrid and native mobile apps.

 
0
ravi
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answered on 04 Feb 2015, 07:09 AM
Hi,
I am developing an application using Rad Controls.In this there is a rad grid which contains checkbox,on selection of it based on the id i am loading relevant data to the another radGrid next to it in the same page.
For the first time selection data is getting loaded properly,But on the next checkbox selection i am getting the error an item with the same key has already been added.
 
Sharing the code
 Collapse | Copy Code<telerik:RadGrid ID="radGrid1" AutoGenerateColumns="false" AllowPaging="true" runat="server"
ShowHeader="true" AllowAutomaticUpdates="true" AllowAutomaticInserts="true" AllowAutomaticDeletes="true"
Width="43%" Style="float: left;" Visible="true" >
<MasterTableView DataKeyNames="USERNAME,USERID">
<Columns>
<telerik:GridTemplateColumn>
<ItemTemplate>
<asp:CheckBox ID="UserSelect" runat="server" HeaderText="Select" AutoPostBack="true"
OnCheckedChanged="UserSelect_CheckedChanged" />
</ItemTemplate>
</telerik:GridTemplateColumn>
<telerik:GridBoundColumn UniqueName="USERID" DataField="USERID" HeaderText="User Id"
Visible="false">
</telerik:GridBoundColumn>
<telerik:GridBoundColumn UniqueName="USERNAME" DataField="USERNAME" HeaderText="User Name">
</telerik:GridBoundColumn>
</Columns>
</MasterTableView>
</telerik:RadGrid>
Checkbox change event
 Collapse | Copy Code protected void UserSelect_CheckedChanged(object sender, EventArgs e)
{
CheckBox chk = (CheckBox)sender;
GridDataItem itm = (GridDataItem)chk.NamingContainer;
RadRoles.DataSource = new string[] { };
RadRoles.DataBind();
 
foreach (GridDataItem row in radGrid1.MasterTableView.Items)
{
CheckBox chk1 = (CheckBox)row.FindControl("UserSelect");
 
if (chk1.Checked == true)
{
DataTable dt = null;
//dt will fetch the values from the DB
RadRoles.DataSource = dt.DefaultView;
RadRoles.DataBind();
}
}
}
0
Pavlina
Telerik team
answered on 06 Feb 2015, 02:57 PM
Hello,

Did you encounter the same problem if you populate the grid through NeedDataSource instead of using simple data binding calling DataBind()?

Regards,
Pavlina
Telerik
 

Check out the Telerik Platform - the only platform that combines a rich set of UI tools with powerful cloud services to develop web, hybrid and native mobile apps.

 
0
Nency
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Rank 1
answered on 19 Aug 2015, 02:24 AM

Hi, Were you able to resolve this issue? I am facing the same error when trying to apply filter on PrerRender.

 protected void GridViewNotifications_PreRender(object sender, EventArgs e)
        {
            GridViewNotifications.MasterTableView.FilterExpression = "([TransactionNo]=SR5350-201501001)";
            GridColumn column = GridViewNotifications.MasterTableView.GetColumnSafe("TransactionNo");
            column.CurrentFilterFunction = GridKnownFunction.EqualTo;
            column.CurrentFilterValue = "SR5350-201501001";
           GridViewNotifications.Rebind();
            
        } 

0
Maria Ilieva
Telerik team
answered on 21 Aug 2015, 01:40 PM
Hello Nency,

Can you please make sure that you are binding the RadGrid through the NeedDataSource event? Sharing your page markup as well as the related code behind will help us further investigate the issue and provide proper solution for your case.

Regards,
Maria Ilieva
Telerik
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Guillermo
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Pavlina
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ravi
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Nency
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Maria Ilieva
Telerik team
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