Google on cocurrency issue with dataset for this. There are plenty of workaround available in this workaround. saud

The simple answer is that you can't. However, you can achieve what you want. You can only set those things up when opening a window. So you can use the following javascript: window.open("app.htm","", "toolbar=false,location=false,status=false,menubar=false,scrollbars=false"); So basically you'll need an extra page to "launch" the application, then you can just run your application within the newly created window. HTH

Hi, I have done it in the datagrid. You can add the checkbox control to the header on the itemdatabound() event, there itself add an event to the checkbox (check event). There you can make all the item checkboxes as selected. Ram