[Solved] Binding a grid's child radcombobox with an async result.

[Burak]

I want to bind an async function result to grid's child raddropdownlist while editing but there is no datasource property to bind. How could i do this .Thanks for your help from now.

my result serviceresult func is

void Sclient_ListRolCompleted(object sender, HzgKullaniciService.ListRolCompletedEventArgs e)
       {
           roller = e.Result.ToList<HzgKullaniciService.Kullanici_rol>();

       }

i want to bind roller that result of webservice to ddlistroller dropdownlist data source.

<telerik:RadGrid runat="server"
            ID="rgv_yetkiler"
            CellSpacing="0"
            Culture="tr-TR"
            GridLines="None"
            Skin="Metro"
            AutoGenerateColumns="False"
            AllowPaging="True"
            AllowSorting="True"
            AllowAutomaticUpdates="True"
            AllowAutomaticInserts="True"
            ShowStatusBar="True">

            <MasterTableView ShowFooter="false" DataKeyNames="ID" EditMode="InPlace" CommandItemDisplay="TopAndBottom">
                <CommandItemSettings ExportToPdfText="Export to PDF"></CommandItemSettings>
                <RowIndicatorColumn Visible="True" FilterControlAltText="Filter RowIndicator column"></RowIndicatorColumn>
                <ExpandCollapseColumn Visible="True" FilterControlAltText="Filter ExpandColumn column"></ExpandCollapseColumn>
                <Columns>
                    <telerik:GridBoundColumn DataField="yetkiadi" HeaderText="Yetki Adı" HeaderStyle-Width="300px" ItemStyle-Width="300px">
                        <ColumnValidationSettings>
                            <ModelErrorMessage Text=""></ModelErrorMessage>
                        </ColumnValidationSettings>

                        <HeaderStyle Width="300px"></HeaderStyle>

                        <ItemStyle Width="300px"></ItemStyle>




                    </telerik:GridBoundColumn>
                    <telerik:GridTemplateColumn HeaderText="Rol" UniqueName="rol" ItemStyle-Width="240px">
                        <ItemTemplate>
                            <%#roller.Where(r=>r.ID==new System.Guid(DataBinder.Eval(Container.DataItem, "rolID").ToString())).First<HzgMainWebApp.HzgKullaniciService.Kullanici_rol>().roladi%>
                        </ItemTemplate>
                        <EditItemTemplate>
                            <telerik:RadDropDownList
                                runat="server"
                                ID="ddlistroller"
                                DataTextField="roladi"
                                DataValueField="ID"
                                SelectedValue='<%#Bind("rolID")%>'

                                >
                            </telerik:RadDropDownList>
                        </EditItemTemplate>
                        <ItemStyle Width="240px"></ItemStyle>
                    </telerik:GridTemplateColumn>
                    <telerik:GridEditCommandColumn
                        FooterText="EditCommand footer"
                        UniqueName="EditCommandColumn"
                        HeaderText="Düzenle" HeaderStyle-Width="100px"
                        CancelText="İptal"
                        UpdateText="Güncelle">
                        <HeaderStyle Width="100px"></HeaderStyle>
                    </telerik:GridEditCommandColumn>
                </Columns>
                <EditFormSettings>
                    <EditColumn UniqueName="EditCommandColumn1" FilterControlAltText="Filter EditCommandColumn1 column"></EditColumn>
                </EditFormSettings>
                <PagerStyle PageSizeControlType="RadComboBox"></PagerStyle>
            </MasterTableView>
            <PagerStyle PageSizeControlType="RadComboBox"></PagerStyle>
            <FilterMenu EnableImageSprites="False"></FilterMenu>



        </telerik:RadGrid>

[Angel Petrov]

Hello Burak,

Actually RadDropDownList has a DataSource property. Is it not appearing in the intellisense? Could you please tell us the exact version of the controls?

All the best,
Angel Petrov
the Telerik team

[Burak]

Yes datasource property doesn't appear in intellisense when combobox in a grid'a edit item tamplate. Rad Contols Version is v.2013.1.403.45 

[Angel Petrov]

Hello Burak,

Please try rebuilding your application. You can set the property although it is not visible in the intellisense. Note that this Visual Studio feature is not controlled by us.

All the best,
Angel Petrov
the Telerik team