You can try to disable the select all checkbox that available in the header by using JavaScript code.

First step, we will need to obtain the element of the select all checkbox. The snippet code below is a sample about how to get the element of the select all checkbox that available in the column header. In this sample, the row checker is placed in the first column of WebGrid. Please note that you might need to modify the code if the IsRowChecker column has different index location.

function Button1_onclick() {
    var WebGrid1 = ISGetObject("WebGrid1");
    var rowCheckerElm = WebGrid1.RootTable.GetElement(WG40.COLHEADER, WG40.HTMLTABLE).cells[1].childNodes[0].childNodes[0].childNodes[0];

    //disable the rowCheckerElm
    rowCheckerElm.disabled = true;

    //remove or hide the rowCheckerElm
    //rowCheckerElm.style.display = "none";

    return true;
}

After get the element of the checkbox, we can disable it by setting the disabled property to true. We can even hide/remove it by setting the display style property to “none”.

Hope this helps.

Thank you for this script. It is working fine.

Glad to hear that the script helps.

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