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RadGridView Column Binding to Second level property

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GridView

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

Xavier asked on 19 Feb 2014, 04:02 PM

Hi,

I'm trying to bind the RadGridView column to a second level property. This is my code:

...
<telerik:RadGridView x:Name="GridView" Loaded="GridView_Loaded" ItemsSource="{Binding ViewMember.TelerikView}"/>
...

private void GridView_Loaded(object sender, RoutedEventArgs e)
{
    foreach (var f in ViewMember.Data.Fields)
    {
        var col = new Telerik.Windows.Controls.GridViewDataColumn();
        col.Header = f;
        col.DataMemberBinding = new Binding(f);//f is Country.Name
col.UniqueName = f;
        GridView.Columns.Add(col);
    }
}

When f is ID it works fine, but when its Country.Name the column is showed but the row is empty. How can i fix this behavior?

Thanks!

10 Answers, 1 is accepted

answered on 02 Sep 2016, 05:43 PM

Hello,

sorry for digging up an old message but I have a similar problem.

I used to have a DataGrid with a nested property like that and it worked fine:

<DataGrid ItemsSource="{Binding SelectedItem.ApprovalPath, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"

SelectedItem="{Binding SelectedPathUser}"

AutoGenerateColumns="False"

CanUserDeleteRows="False"

Height="100"

IsReadOnly="True"

>

<DataGrid.Columns>

<DataGridTextColumn Header="Name" Binding="{Binding Path=User.DisplayName}" Width="*" />

<DataGridTextColumn Header="Order" Binding="{Binding Order, UpdateSourceTrigger=PropertyChanged}" Width="45" />

</DataGrid.Columns>

</DataGrid>

I switched to RadGridView, trying to achieve the same functionality but I got an error that it cannot find the specified property!

<telerik:RadGridView ItemsSource="{Binding SelectedItem.ApprovalPath, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"

SelectedItem="{Binding SelectedPathUser}"

AutoGenerateColumns="False"

CanUserDeleteRows="False"

Height="100"

IsReadOnly="True"

>

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn Header="Name" DataMemberBinding="{Binding User.DisplayName}" Width="*" />

<telerik:GridViewDataColumn Header="Order" DataMemberBinding="{Binding Order, UpdateSourceTrigger=PropertyChanged}" Width="45" />

</telerik:RadGridView.Columns>

</telerik:RadGridView>

While debugging I found out that it is trying to find the property "DisplayName" from the selected item object and to from the nested property of User!

Am I doing something wrong with the binding or it is a problem with bindings?

answered on 05 Sep 2016, 01:10 PM

[quote]David said:I have serveral bindings in my application with nested bound properties.
So one "ApprovalPath"-Item contains "Order" and "User" property?[/quote]

Yes, on "ApprovalPath"-item contains "Order" and "User" properties! Let me clarify the usage a little more:

I have a Deployment class that contains a collection of DeploymentApprovalPath objects as follows:

public class Deployment

{

public virtual ObservableCollection<DeploymentApprovalPath> ApprovalPath { get; set; }

}

public class DeploymentApprovalPath

{

public virtual User User { get; set; }

public int Order { get; set; }

}

In my view I have a RadGridView that binds to a collection of Deployments and the selected Deployment is the SelectedItem (lets name it SelectedDeployment for convenience).
Then I have the next RadGridView that binds to the SelectedDeployment.ApprovalPath so I can display the approval path of the specific deployment (list of users with a specific order). The SelectedItem of this specific ApprovalPath (DeploymentApprovalPath type) is bound to the SelectedPathUser property.
I want the user of the app to be able to add new Users to the approval path and set its order (new DeploymentApprovalPath object in SelectedDeployment.ApprovalPath ). So I created a Combobox with the following bindings:

Items="{Binding AvailableUsers}" DisplayMemberPath="DisplayName" SelectedItem="{Binding SelectedPathUser.User, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}

So the user can select the specific User from a list of available Users and it automatically set it to the SelectedDeployment.ApprovalPath.SelectedPathUser.User !

Does it make any sense?

answered on 05 Sep 2016, 01:36 PM

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Hi Dimitrios,

i wrote some Code based on your explenations, but i dont have any Problems with it (see attachments).

Did I anything different?