Grouping

[Daenur]

I'd like to group some properties in one node with general name. I do e.PropertyDefinition.GroupName = "Name" in AutoGeneratingPropertyDefinition(), but... nothing!

Can you write code of sample?

[Branko]

Hello Daenur,

I know how to group properties in xaml, I don't know is this what you where looking for.
But I am also interested how to make Grupe Name based on Attribute description, not in xaml !? Also if you know how to make Description for property with attribute not in xaml please share.

<telerik:RadPropertyGrid AutoGeneratePropertyDefinitions="False" Item="{Binding Path="Your path to binding element"}">
  <telerik:RadPropertyGrid.PropertyDefinitions>

    <telerik:PropertyDefinition DisplayName="Name of your property" GroupName="Name">

      <telerik:PropertyDefinition.EditorTemplate>
        <DataTemplate>
          <TextBox Text="{Binding ToSomething}" />
        </DataTemplate>
      </telerik:PropertyDefinition.EditorTemplate>
    </telerik:PropertyDefinition>
  </telerik:RadPropertyGrid.PropertyDefinitions>
</telerik:RadPropertyGrid>

Thank you,
Best regards,
Branko

[Daenur]

This is example:

[AttributeUsage(AttributeTargets.Property, Inherited = true)]
    public class StrategyPropertyAttribute : Attribute
    {
        private bool show;
        private string displayName;
        private string description;

        #region Properties

        public bool Show
        {
            get { return this.show; }
        }

        public string DisplayName
        {
            get { return this.displayName; }
            set { this.displayName = value; }
        }

        public string Description
        {
            get { return this.description; }
            set { this.description = value; }
        }

        #endregion

        public StrategyPropertyAttribute(bool show)
        {
            this.show = show;

            this.displayName = string.Empty;
            this.description = string.Empty;
        }
    }

[StrategyPropertyAttribute(true, DisplayName = "Length of JMA")]
        public int JmaLength
        {
            get
            {
                return (this.jmaSeries != null) ? this.jmaSeries.Length : 0;
            }
            set
            {
                if (this.jmaSeries != null)
                    this.jmaSeries.Length = value;
            }
        }

private void rpgStrategyParams_AutoGeneratingPropertyDefinition(object sender, AutoGeneratingPropertyDefinitionEventArgs e)
        {
            PropertyInfo pi = ((Telerik.Windows.Controls.RadPropertyGrid)sender).Item.GetType().GetProperty(e.PropertyDefinition.DisplayName);
            if (pi != null)
            {
                StrategyPropertyAttribute attr = pi.GetAttribute<StrategyPropertyAttribute>(true);

                if (attr != null)
                {
                    if (attr.Show == true)
                    {
                        if (attr.DisplayName != null)
                            e.PropertyDefinition.DisplayName = attr.DisplayName;

                        if (attr.Description != null)
                            e.PropertyDefinition.Description = attr.Description;

                        e.PropertyDefinition.GroupName = "Group"; // !!! DOESN'T WORK!!! WHY ???
                    }
                    else
                    {
                        e.Cancel = true;
                    }
                }
                else
                {
                    e.Cancel = true;
                }
            }
        }

Developers, please answer to why this code does not work?

e.PropertyDefinition.GroupName = "Group"; // !!! DOESN'T WORK!!! WHY ???