[Solved] How to get the number of rows, column and selected items

[Erwin]

I have a radgrid and i want to know the following

1. number of rows
2. number of columns
3. row of the item selected in grid
4. column of the item selected in grid

I have tried grid.column.count but it does not have that property?

Additional question:

I have a checkbox in the grid and i want the user to select only one checkbox...

i need to deselect the previous selected checkbox if the user will check another checkbox.

Is it possible to just find the column of the checkbox then uncheck all in the checkbox in the event "onmousedown"

since if its not possible im thinking to make a "for loop" and locate each cell for the checkbox.

[Princy]

Hello Erwin,

You can check out the following code to access rows ,columns or cells in your grid:
c#:

protected void RadGrid1_PreRender(object sender, EventArgs e)
    {
        int colcount = RadGrid1.MasterTableView.Columns.Count; // to get the column count
        int rowcount = RadGrid1.MasterTableView.Items.Count; //to get the row count
        foreach(GridDataItem dataItem in RadGrid1.SelectedItems)
         {
            GridColumn col = (GridColumn)RadGrid1.MasterTableView.GetColumn("Name"); //to access the selected item's column
            string strtxt = dataItem["Name"].Text; // to access the cell value
         }
    }

Also refer to the following document which explains on how to access cells and rows in a grid:
Accessing cells and rows

If you want to select rows in the grid using checkboxes on each row, you can use the GridClientSelectColumn and set the ClientSettings>Selecting>AllowRowSelect to true which enables client-side selection.

If you are using a checkbox with a TemplateColumn, then you can try out the following code:
aspx:

 <telerik:GridTemplateColumn UniqueName="TemplateColumn">
        <ItemTemplate>
            <asp:CheckBox ID="CheckBox" runat="server" />
        </ItemTemplate>
 </telerik:GridTemplateColumn>

c#:

 protected void RadGrid1_ItemCreated(object sender, GridItemEventArgs e)
    {
       foreach (GridDataItem dataItem in RadGrid1.Items)
        {
            CheckBox chkbx = (CheckBox)dataItem.FindControl("CheckBox");
            chkbx.Attributes.Add("onclick", "SelectMeOnly('"+ chkbx.ClientID + "','"+dataItem.ItemIndex+"')");
        }
    }

js:

function SelectMeOnly(checkbox,rowindex)
   {
     var i, obj, pageElements;
    if(navigator.userAgent.indexOf("MSIE")!= -1)
     {
        //IE browser
        pageElements = document.all;
     }
     else if(navigator.userAgent.indexOf("Mozilla") != -1 || navigator.userAgent.indexOf("Opera")!= -1)
     {
        //FireFox/Opera browser
        pageElements = document.documentElement.getElementsByTagName("input");
     }
     for (i=0; i < pageElements.length; i++)
     {
       obj = pageElements[i];
       if (obj.tagName == "INPUT")
       {
         if (checkbox == obj.id)
          obj.checked = true;

         else
          obj.checked = false;
       }
    }
  }

Thanks
Princy.