[Solved] Perform filter after 3 chars typed

[Per]

Hi!

Is it possible to make the radgrid perform automatic filtering after the user has typed 3 (or more) characters in the filer box?

If so, whats the best approach?
Is there a example ot this somewhere that I have missed :) ?

Regards
Per Bornsjö

[Yavor]

Hi Per,

You can use the following example as a starting point. Essentially, you can have a filter texbox with onkeypress client side handler attached. When the user has entered 3 characters, you can fire the filter command.
I hope this suggestion gets you started properly.

Kind regards,
Yavor
the Telerik team

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[Princy]

Hello,

You can try out the following code to achieve the required scenario:
c#:

 protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)
    {
        if (e.Item is GridFilteringItem)
        {
            GridFilteringItem filterItem = (GridFilteringItem)e.Item;
            foreach (GridColumn col in RadGrid1.MasterTableView.RenderColumns)
            {
                if ((col.UniqueName != "ExpandColumn") && (col.UniqueName != "RowIndicator"))
                {

                    TextBox filtertxt = (TextBox)filterItem[col.UniqueName].Controls[0];
                    {
                        filtertxt.Attributes.Add("onkeyup", "Filter('" + col.UniqueName + "','" + filtertxt.ClientID + "')");
                    }

                }
            }
        }
    }

js:

function Filter(colName,filtertxt)
    {
       var filterTxt = document.getElementById(filtertxt);
       var MasterTable = $find("<%= RadGrid1.ClientID %>").get_masterTableView();
       if(filterTxt.value.length>2)
       {

           MasterTable.filter(colName, filterTxt.value, Telerik.Web.UI.GridFilterFunction.StartsWith);

       }

Thanks
Princy.