Creating a third column in PropertyGrid

[Sri]

Is it possible to create a third column in a PropertyGrid?  For example:  PropertyName - PropertyValue - Units of Measure  (ie: "Starting Length" - "1000" - "meters" or "Base Pressure" - "22" - "psi")

I'm guessing that I might need to create a custom PropertyGrid control that descends from RadPropertyGrid with the third column, and then maybe a custom PropertyStoreItem that includes a field for the third column value (in this case the units of measure).  And then somehow bind it all together.

I am new to Telerik, and do not have any experience with your Telerik Presentation Framework.

Thank you.

[Peter]

Hi Sri,

Thank you for your question.

I would like start with clarification that RadPropertyGrid is not designed to support more than two columns out of the box and I am not able to propose а solution for this which will be applicable in your scenario.

Instead I would like to suggest to create a custom CustomPropertyGridItemElement which contains a label that displays a third value. This value cannot be bindable and you should set it manually depending on the name or the type of the item. For example:

       this.radPropertyGrid1.CreateItemElement += new CreatePropertyGridItemElementEventHandler(radPropertyGrid1_CreateItemElement);

        this.radPropertyGrid1.EditorInitialized += radPropertyGrid1_EditorInitialized;
        this.radPropertyGrid1.Edited += radPropertyGrid1_Edited;

    void radPropertyGrid1_Edited(object sender, PropertyGridItemEditedEventArgs e)
    {
        RadElement editor = ((PropertyGridTextBoxEditor)(this.radPropertyGrid1.ActiveEditor)).EditorElement;
        editor.MaxSize = new Size(0,0);
    }

    void radPropertyGrid1_EditorInitialized(object sender, PropertyGridItemEditorInitializedEventArgs e)
    {
        RadElement editor = ((PropertyGridTextBoxEditor)(this.radPropertyGrid1.ActiveEditor)).EditorElement;
        editor.MaxSize = new Size(editor.Size.Width - 25, editor.Size.Height);
        editor.Alignment = System.Drawing.ContentAlignment.MiddleLeft;
    }

class CustomPropertyGridItemElement : PropertyGridItemElement
{
    RadLabelElement label;
    protected override void CreateChildElements()
    {
        base.CreateChildElements();
        this.label = new RadLabelElement();
        this.label.Text = "";
        this.label.StretchHorizontally = false;
        this.label.Margin = new Padding(0, 2, 0, 2);
        this.label.Alignment = System.Drawing.ContentAlignment.MiddleRight;
        this.Children.Add(this.label);
    }

    public override void Synchronize()
    {
        base.Synchronize();
        //check this
        //if (((Telerik.WinControls.UI.PropertyGridItem)(((Telerik.WinControls.UI.PropertyGridItemElement)(this)).Data)).Accessor).PropertyType == typeof(string))
        if (this.TextElement.Text == "CommonText")
            this.label.Text = "kg";
        else
            this.label.Text = "ml";
    }

    protected override Type ThemeEffectiveType
    {
        get
        {
            return typeof(PropertyGridItemElement);
        }
    }
}

Please, refer to the attached sample solution that demonstrates this approach.

I hope this will be applicable for your scenario.

Regards,
Peter
Telerik

 

 

[Guillaume]

Hi there,

 

Just want to know if it's now possible to add a third column?

I want to show some kind of history like this:

Propertydefinitions | Old values (with nested properties) | New values (with nested properties)

Thanks

[Dess | Tech Support Engineer, Principal]

Hello Guillaume,

Thank you for writing. 

RadPropertyGrid is not designed to support three or more columns. Hence, in order to add some additional information, the possible solution is to create a custom PropertyGridItemElement. A sample approach is demonstrated in Peter's reply. Feel free to modify it in a way which suits your requirement best.

The following help article demonstrates a approach as well: http://docs.telerik.com/devtools/winforms/propertygrid/custom-items

I hope this information helps. Should you have further questions I would be glad to help.

Regards,
Dess
Telerik by Progress

[Guillaume]

Hello Dess,

Thank you for your reply. I'll use the GridView instead, it should be easier and more stable than to tweak the PropertyGrid particularly when I don't really need the other functionalities :)

Thanks again!