Removing items from ASP.Net Filter

[Munish]

Hello All

I am using telerik asp.net filter control (http://demos.telerik.com/aspnet-ajax/filter/examples/overview/defaultcs.aspx). I have a requirement where i would like to remove items from filters like let suppose i am filtering on order table it displays orderid, ordername and ordertype the same will be displayed in result grid, it is working. Now if i remove items from grid(columns) like i remove orderid from filters also. I can remove item from grid however can anyone help me how can i remove the item from the filter.

Thanks

[Angel Petrov]

Hi Munish,

In order to achieve this you would have to find the filter expression with a FieldName matching that of the column. This can be achieved by using this code snippet:

for (int i = 0; i < RadFilter1.RootGroup.Expressions.Count; i++)
        {
            string filteredField = (RadFilter1.RootGroup.Expressions[i] as RadFilterNonGroupExpression).FieldName;
            int filterExpressionIndex = i;
        }

Later you can remove the expression by index:

//remove the filter expression
        RadFilter1.RootGroup.Expressions.Remove(RadFilter1.RootGroup.Expressions[filterExpressionIndex ]);
        RadFilter1.RecreateControl();

All the best,
Angel Petrov
the Telerik team