How to find the control within the cell, to make it enabled/disabled?

Nice sample, i also want to enable/disable a NumericEditor within a WebDataGrid in a cell. The cell i also have selected, but how to get the control from the cell the disable/enable it?

On server side i disabled the Numeric control and the can´t set any value. Now i will enable this Control with Javascript to make changes. Here is my code:

 <ig:WebDataGrid ID="WebDataGrid1" runat="server" Height="400px" Width="98%" AutoGenerateColumns="false" EnableDataViewState="True" EnableAjax="false" DataKeyFields="Id">
            <Columns>

 <ig:TemplateDataField Key="NotSalable" Width="150" >
                   
                    <ItemTemplate>                                     
             
                                   
                        <div id="divNotSalable">
                            <ig:WebNumericEditor ID="nudNotSalableNumber"  runat="server" DataMode="Int" MaxDecimalPlaces="0" ValueInt='<%# Bind("NotSaleableNumber") %>'
                                Width="50px" MinValue="0" MaxValue="500">
                                    <Buttons SpinButtonsDisplay="OnRight">
                                </Buttons>
                                       
                            </ig:WebNumericEditor>
                        </div>

                    </ItemTemplate>
                </ig:TemplateDataField>

I tried in my javascript function this, but the clientId within a grid couldn´t be resolved.

function Test()

{

// var grid = $find("WebDataGrid1"); // my DataGrid has an Id of WebDataGrid1
            var grid = $find("<%= WebDataGrid1.ClientID %>");

            var rows = grid.get_rows();

            var currentIndex = document.getElementById('<%=hfRowIndex.ClientID %>').value;

            var row = rows.get_row(currentIndex); // 1 = your row index
            var cell = row.get_cell(4); // 0 = your cell index

var isChecked = src.checked;
            if (isChecked) {
        
                // cell.get_element().style.visibility = 'hidden';
                cell.get_element().getElementsByTagName('<%=nudNotSalableNumber.ClientID %>');

}

..

}

Hello,

I tried the setEnabled function and it did not worked. When I check the value by alert(controle.disabled); I get the correct value but on screen it's still disabled