Hello Curtis,

                    We want to select context menu at run time depending upon type of the record on which the Mouse rightClick event occured . i.e. if there are two levels of records in the Datapresenter e.g. First row contains Order and rows following to it contains Products in the Order.

                   I have 2 Context Menus, one for Orders and second for Products.

                    Suppose when I right click on Order Record (Row) then I need to show the context menu for Orders and when I Right Click on any of the Product record which belongs to any of the Order record then I need to show context menu for Products.

                   The problem which we are facing is that before right clicking on any record, we are supposed to first left click on it , make it as Activerecord and the we need to right click on it so that we can identify the records (whether it is order record or product record ) at runtime and decide which context menu we should show Up.

                   Here is some code for Right Click event

 private void DataPresenter_MouseRightButtonDown(object sender, MouseButtonEventArgs e)
        {

            DataRecord drCurrent = (DataRecord)DataPresenter.ActiveRecord;
          

              if(drCurrent.Cells[0].Value =="Product")

            DataPresenter.ContextMenu = ProductContextMenu;

              else

            DataPresenter.ContextMenu = OrderContextMenu;

        }

                The expected behaviour is that when we RightClick on any record of Datapresenter, the record should become Activerecord of the Datapresenter (instead of first left click on the record, make it activeRedord and then Right click on the same record).

Please let us know whether we are missing any event of Datapresenter which provides expected functionality.

Thanks,

Chetan Deshmukh       

Hi Curtis,

Will you please give me your Email Id so that I will send you the sample which has the mentioned problem?

The following XAML declaration will work. Targeting the DataRecordCellArea with the Record Cell index better ensures that the trigger will resolve itself.

<Style TargetType="{x:Type Infragistics:DataRecordCellArea}">

  <Style.Triggers>

    <DataTrigger
     Binding="{Binding RelativeSource={RelativeSource Self},
     Path=Record.Cells[1].Value}" Value="True" >

        <Setter Property="IsSelected" Value="True"/>

        <Setter Property="IsActive" Value="True"/>

   </DataTrigger>

  </Style.Triggers>

</Style>

Hello Curtis,

I am trying to implement similler type of DataTrigger on DataPresenter in which I want to set row active depending up on data in it,

The scenaron is as follows..

I am assigning datasource to DataPresenter as follows...

(Application.Current.Resources.Add["PatientName"] ="LMN"  is set in Constructor of Window)

 private void LoadData()
        {
            List<string> str = new List<string>();

            str.Add("ABC");
            str.Add("PQR");
            str.Add("LMN");
            str.Add("XYZ");
            str.Add("KLM");

            InfraGrid.DataSource = str;
         
        }

Applied DataTrigger as follws...

                <Style TargetType="{x:Type infra:DataRecordCellArea}">
                    <Style.Triggers>
                        <DataTrigger Value="True">
                            <DataTrigger.Binding>
                                <MultiBinding Converter="{StaticResource selectPatient}">
                                    <Binding RelativeSource="{RelativeSource self}" Path="Record.Cells[0].Value"/>
                                    <Binding Path="Resources" Source="{x:Static Application.Current}"/>
                                </MultiBinding>
                            </DataTrigger.Binding>
                            <Setter Property="IsSelected" Value="True"/>
                            <Setter Property="IsActive" Value="True"/>
                        </DataTrigger>
                    </Style.Triggers>
                </Style>

The converter selectPatient is as follows..

    public class MultiValueConverterCompareForEqual : IMultiValueConverter
    {
        public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            System.Windows.ResourceDictionary rd = (System.Windows.ResourceDictionary)values[1];
            if (rd["PatientName"] != null && rd["PatientName"].Equals(values[0]))
                return true;
            else
                return false;

        }

        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, System.Globalization.CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }
}

When first time datasource get assigned to the DataPresenter,

As Application.Current.Resources.Add["PatientName"] ="LMN"   is set, the third record will get select.

I have written code on record activated which sets

Application.Current.Resources.Add["PatientName"]  value to the cell value. So if I will click on row with Value "ABC" ,  value in Application.Current.Resources.Add["PatientName"]  will become "ABC".

After that If I will execute follwing code to reassign the datasource,the DataTrigger executes with call to converter but dose not select the record"ABC"....

 private void LoadData()
        {
            List<string> str = new List<string>();

            str.Add("ABC");
            str.Add("PQR");
            str.Add("LMN");
            str.Add("XYZ");
            str.Add("KLM");

            InfraGrid.DataSource = null;

            InfraGrid.DataSource = str;
         
        }

Is there any issue with the DataPresenter which not refresh the DataPresenter...?

Hi Curtis,

Is there any Property or event of XamDataPresenter which can give me record on which currently MouseOver happened..? i.e. I want to implement ToolTip like functionality and I want Currnet DataRerord on whcih user has his mouse.

Hi Custis,

As we discussed, sharing the solution of the problem mentioned above by me..

Problem inshort: When we bind any object(which is not a string) to DataGrid field, the field not remains sortable.

Solution: Create an UnBound Field and set Binding to it as follows.

<InfraGrid:UnboundField BindingPath="[ObjectName].[PropertyName]" Label="Preferred Description" Width="480">

 In my case I had a Colloection as a datasource. The collection was of class which has a field of type RecordType. When I bind the colloection to a DataGrid, RecordType field gets assigned to one of the fields. As I override ToString method of RecordType class and returned RecordName, I could see the RecordNames in the field but cound not sort the field. When I used Unbound field and explicitely set the BindingPath to the RecordName, I cound see the RecordNames in the field as well as could sort the field. 

Hello Chetan,

I received your sample. I will get back to you as soon as I determine what the problem is and will communicate the solution here for other users as well.

Thank you!

Hi Custis,

I tried following but not working.

 EditAsType="{x:Type Sys:String}" on FieldSettings

can I try anything else to solve the issue?

Hi Curtis,

Sent you an email with the sample application attached.

Please let me know if you need more details about the issue.

Thanks,

Chetan

You may need to explicitly set the type to string in the Field Settings. If you could replicate the issue in a smaller sample project, I could better determine why sorting isn't working and correct the problem.

Thank you!