Custom Task Field is Not Showing up in the TreeView

Hello,

I have added One Custom Task Field 'SrNo' as object datatype with respect to demo project given here. I have not used EntityFramework. I am Binding RadGantt's Datasource and DependenciesDataSource simply on Page_Load Event.

To add new Task Field below is the code I have written

publicclassCustomGanttTaskFactory : ITaskFactory

{

Task ITaskFactory.CreateTask()

{

returnnewCustomTask();

}

publicclassCustomTask : Task

{

publicCustomTask()

: base()

{

}

publicobjectSrNo

{

get{ return(object)(ViewState["SrNo"] ?? ""); }

set{ ViewState["SrNo"] = value; }

}

protectedoverrideIDictionary<string, object> GetSerializationData()

{

var dict = base.GetSerializationData();

dict["SrNo"] = SrNo;

returndict;

}

publicoverridevoidLoadFromDictionary(System.Collections.IDictionary values)

{

base.LoadFromDictionary(values);

SrNo = values["SrNo"];

}

Page_Load Event:

protectedvoidPage_Load(objectsender, EventArgs e)

{

List<ITask> newFinalTask = newList<ITask>();

List<IDependency> FinalDependency = newList<IDependency>();

newFinalTask.Add(newCustomTask { ID = 1, SrNo = "1", OrderID = 1, ParentID = null, Title = "A", Start = new DateTime(2015, 01, 10, 0, 0, 0), End = newDateTime(2015, 01, 19, 23, 59, 59), PercentComplete = 0.60M, Expanded = false, Summary = true});

newFinalTask.Add(newCustomTask { ID = 2, SrNo = "", OrderID = 2, ParentID = 1, Title = "A1", Start = newDateTime(2015, 01, 10, 0, 0, 0), End = newDateTime(2015, 01, 15, 23, 59, 59), PercentComplete = 0.60M, Expanded = false});

newFinalTask.Add(newCustomTask { ID = 3, SrNo = "", OrderID = 3, ParentID = 1, Title = "A2", Start = newDateTime(2015, 01, 16, 0, 0, 0), End = newDateTime(2015, 01, 19, 23, 59, 59), PercentComplete = 0.60M, Expanded = false});

newFinalTask.Add(newCustomTask { ID = 4, SrNo = "2", OrderID = 4, ParentID = null, Title = "B", Start = newDateTime(2015, 01, 20, 0, 0, 0), End = newDateTime(2015, 01, 31, 23, 59, 59), PercentComplete = 0.60M, Expanded = false, Summary = true});

newFinalTask.Add(newCustomTask { ID = 5, SrNo = "", OrderID = 5, ParentID = 4, Title = "B1", Start = newDateTime(2015, 01, 20, 0, 0, 0), End = newDateTime(2015, 01, 31, 23, 59, 59), PercentComplete = 0.60M, Expanded = false});

FinalDependency.Add(newDependency { ID = 1, PredecessorID = 1 ,SuccessorID = 4, Type = DependencyType.FinishStart });

RadGantt1.DataSource = newFinalTask;

RadGantt1.DependenciesDataSource = FinalDependency;

}

Design Page:

<telerik:RadGanttrunat="server"ID="RadGantt1"

Enabled="true"

ReadOnly="True"

AllowSorting="False">

<DataBindings>

<TasksDataBindingsIdField="ID"TitleField="Title"StartField="Start"EndField="End"

PercentCompleteField="PercentComplete"OrderIdField="OrderID"SummaryField="Summary"ParentIdField="ParentID" />

<DependenciesDataBindingsIdField="ID"PredecessorIdField="PredecessorID"

SuccessorIdField="SuccessorID"TypeField="Type"/>

</DataBindings>

<CustomTaskFields>

<telerik:GanttCustomFieldPropertyName="SrNo"ClientPropertyName="SrNo"/>

</CustomTaskFields>

<Columns>

<telerik:GanttBoundColumnDataField="ID"HeaderText="ID"AllowEdit="false"AllowSorting="false"Width="50px"></telerik:GanttBoundColumn>

<telerik:GanttBoundColumnDataField="SrNo"HeaderText="Sr.No."AllowEdit="false"AllowSorting="false"Width="50px"UniqueName="SrNo"></telerik:GanttBoundColumn>

<telerik:GanttBoundColumnDataField="Title"HeaderText="ACTIVITY"AllowEdit="false"AllowSorting="false"></telerik:GanttBoundColumn>

<telerik:GanttBoundColumnDataField="Start"HeaderText="START"DataFormatString="dd/MM/yyyy"AllowEdit="false"AllowSorting="false"Width="80px"></telerik:GanttBoundColumn>

<telerik:GanttBoundColumnDataField="End"HeaderText="END"DataFormatString="dd/MM/yyyy"AllowEdit="false"AllowSorting="false"Width="80px"></telerik:GanttBoundColumn>