Hi,

i have undefined values when i try to define my own columns, when AutoGenerateColumns = "true" it works fine.

<telerik:RadGantt ID="RadGantt1" runat="server" SelectedView="MonthView" Skin="Silk"  ReadOnly="true" AutoGenerateColumns="false" ListWidth="351px" DataSourceID="TaskSource" DependenciesDataSourceID="DependenciesSource" >
            <YearView UserSelectable="true" />
            <DayView UserSelectable="false" />
            
            <Columns>
                <telerik:GanttBoundColumn DataField="Naziv" DataType="String" Width="120px" AllowEdit="true"></telerik:GanttBoundColumn>
                <telerik:GanttBoundColumn DataField="DatumOd" DataType="DateTime"  Width="40px" ></telerik:GanttBoundColumn>
                <telerik:GanttBoundColumn DataField="DatumDo" DataType="DateTime"  Width="40px" ></telerik:GanttBoundColumn>
            </Columns>
            
            <DataBindings>
                <TasksDataBindings
                    IdField="IdAkcije"  
                    StartField="DatumOd" EndField="DatumDo"
                    ParentIdField="Dependence" SummaryField="Summary"
                    TitleField="Naziv"
                    PercentCompleteField="PercentComplete"  />
                <DependenciesDataBindings
                     IdField="IdAkcije"
                    PredecessorIdField="PredecessorID"
                    SuccessorIdField="SuccessorID"
                    TypeField="Type" />
            </DataBindings>
            <Localization HeaderMonth="<%$ GetString: 24_Py_Mjesec %>" HeaderWeek="<%$ GetString: 00_Pub_Week %>" />
        </telerik:RadGantt>
    </div>

    <asp:SqlDataSource runat="server" ID="TaskSource" ConnectionString="<%$ ConnectionStrings: HrNet.Core.SqlServer %>" SelectCommandType="StoredProcedure" SelectCommand="gorGanttPregled" ProviderName="System.Data.SqlClient">
    </asp:SqlDataSource>

    <asp:SqlDataSource runat="server" ID="DependenciesSource" ConnectionString="<%$ ConnectionStrings: HrNet.Core.SqlServer %>" SelectCommandType="StoredProcedure" SelectCommand="gorGanttDependanciesPregled" ProviderName="System.Data.SqlClient">
    </asp:SqlDataSource>

Hi,

I've attached a small sample page demonstrating the Manually defined columns working accordingly. You can test it on your end to verify the functionality. 

I also noticed that in your sample you are using a stored procedure to load the tasks and dependencies. If this is the source of the issue, could you modify the sample so that it uses a stored procedure similar to yours and send it back to us, so that we can test it locally?

Regards,
Bozhidar
Telerik

After upgrading to the latest version (2015.2.729.45) , I noticed a few changes:

• The columns no longer show "undefined". They just show blanks.
• Turning AutoGenerateColumns="true" now shows both the generated columns and the declared columns.
• Changing my DataFields to use the gantt chart's field names instead of my column names fixes the issue!

So, for the DataField="Naziv" in Tomislav's example, it should instead be DataField="Title"!

That makes no sense to me, as I would expect the DataField names to come from my data source just like they do in every other ASP.NET AJAX control, but now that I know what's going on, I can work around it.