Grid with dynamic columns

[Andrey]

Hello, I'm trying to create grid columns types of which I don't know at runtime.
For that I'm using (GridElement) class with Dictionary property:

public class GridElement
    {
        Dictionary<string, object> properties = new Dictionary<string, object>();

        public object this[string name]
        {
            get
            {
                if (properties.ContainsKey(name))
                    return properties[name];

                return null;
            }
            set
            {
                properties[name] = value;
            }
        }

        public Dictionary<string, object> Properties
        {
            get { return properties; }
            set { properties = value; }
        }
    }

I'd like to do something like that..

List<GridElement> elementList= new List<GridElement>();

//Adding some data to elementList

//trying to generate columns
  foreach (var element in elementList[0].Properties)
            {
                GridBoundColumn column = new GridBoundColumn();
                this.TestRadGrid.MasterTableView.Columns.Add(column);
                column.HeaderText = element.Key.ToString();
                column.DataField = ???
            }

  this.TestRadGrid.MasterTableView.DataSource = elementList;

Any suggestions how can i make this work?

[Kshitiz]

even i have the same telerik demos are not helpful for knowledge they are 2 muhc limited :|

[Radoslav]

Hi Kshitiz,

The RadGrid does not support binding to objects which contains data into the dictionary collection. To achieve the desired functionality you need to have properties for all columns into the object and bind the grid to collection of these objects. Please check out the following online examples which demonstrate the supported data sources for RadGrid binding:
http://demos.telerik.com/aspnet-ajax/grid/examples/programming/binding/defaultcs.aspx
http://demos.telerik.com/aspnet-ajax/grid/examples/programming/dynamictypes/defaultcs.aspx
http://demos.telerik.com/aspnet-ajax/grid/examples/programming/needdatasource/defaultcs.aspx
http://demos.telerik.com/aspnet-ajax/grid/examples/programming/net2datasourcecontrols/defaultcs.aspx
http://demos.telerik.com/aspnet-ajax/grid/examples/databinding/net35datasourcecontrols/defaultcs.aspx

In your case you need to have properties into the GridElement class to which the columns will be bound.

Additionally please check out following documentation article which explains how to create RadGrid programmatically:
http://www.telerik.com/help/aspnet-ajax/grid-programmatic-creation.html

I hope this helps.

All the best,
Radoslav
the Telerik team