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SelfReference Hierarchy Problem With Dynamic Columns

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GridView

This is a migrated thread and some comments may be shown as answers.

Kiran asked on 07 Sep 2010, 07:22 AM

selfreferencehierarchyproblem.png

Hi

I am implementing self reference hierarchy and i have used the code below which works fine for default columns.

<telerik:RadGridView x:Name="RadGridView1"

DataLoading="RadGridView1_DataLoading" RowLoaded="RadGridView1_RowLoaded" GridLinesVisibility="Horizontal"

CanUserFreezeColumns="False" IsReadOnly="True" AutoGenerateColumns="False" Margin="10">

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn DataMemberBinding="{Binding TaskId}" />

<telerik:GridViewDataColumn Header="Task Name" DataMemberBinding="{Binding TaskName}" />

<telerik:GridViewDataColumn Header="Read">

<telerik:GridViewColumn.CellTemplate>

<DataTemplate>

<CheckBox x:Name="checkBoxRead" IsChecked="{Binding Read}" />

</DataTemplate>

</telerik:GridViewColumn.CellTemplate>

</telerik:GridViewDataColumn>

<telerik:GridViewDataColumn Header="Write">

<telerik:GridViewColumn.CellTemplate>

<DataTemplate>

<CheckBox x:Name="checkBoxWrite" IsChecked="{Binding Write}" />

</DataTemplate>

</telerik:GridViewColumn.CellTemplate>

</telerik:GridViewDataColumn>

</telerik:RadGridView.Columns>

<telerik:RadGridView.FilterDescriptors>

<telerik:FilterDescriptor Member="ParentTaskId" Operator="IsEqualTo" Value="0"/>

</telerik:RadGridView.FilterDescriptors>

<telerik:RadGridView.ChildTableDefinitions>

<telerik:GridViewTableDefinition>

<telerik:GridViewTableDefinition.Relation >

<telerik:TableRelation IsSelfReference="True" >

<telerik:TableRelation.FieldNames>

<telerik:FieldDescriptorNamePair

ParentFieldDescriptorName="TaskId"

ChildFieldDescriptorName="ParentTaskId" />

</telerik:TableRelation.FieldNames>

</telerik:TableRelation>

</telerik:GridViewTableDefinition.Relation>

</telerik:GridViewTableDefinition>

</telerik:RadGridView.ChildTableDefinitions>

</telerik:RadGridView>

I have a problem when I add dynamic columns columns are showing at rool level but does not get added at child node level. If you notice in the screenshot RolePermissions[0], RolePermissions[1], RolePermissions[2] are dynamic columns. I have attached the screenshot. Is there a simple way to fix it please suggest.

Regards
Kiran

6 Answers, 1 is accepted

answered on 07 Sep 2010, 07:47 AM

Hi

I am adding columns using this code.

GridViewDataColumn tempDataColumn = new GridViewDataColumn();

// Determines the maximum number of months that any employee has worked.

int maxNumberOfMonths = Tasks.Max((x) => x.RolePermission.Count);

for (int i = 0; i < maxNumberOfMonths; i++)

{

tempDataColumn = new GridViewDataColumn()

{

UniqueName = "Read" + (i + 1)

,

DataMemberBinding = new Binding("RolePermission[" + i + "]") { Mode = BindingMode.TwoWay }

,

DataType = typeof(bool)

};

tempDataColumn.IsReadOnly = false;

this.RadGridView1.Columns.Add(tempDataColumn);

}

Regards
Kiran

Accepted