Hello,

Thank you for waiting.

I found a work around that perhaps you could use.

I add a couple of validation codes in OnCheckBoxClick client side event.
The code checked whether the child row is expanded or not. The WebGrid will uncheck the checkbox, if the row isn’t expanded.

Here’s the example snippet code in OnCheckBoxClick:

function WebGrid1_OnCheckBoxClick(controlId, tblName, colName, checkboxValue, originalCheckBoxValue) {    var WebGrid1 = ISGetObject(controlId);
    var tableWebGrid1 = WebGrid1.Tables[tblName];
    var tableRowObject = tableWebGrid1.ToRowObject(WebGrid1.CheckedRowContext);
            
    if (!tableRowObject.ChildExpanded) {
        tableRowObject.Uncheck();
    }
}

I also attached the sample about how I implement the code (based on Hierarchical.aspx WebGrid Sample). To run the sample, just simply add the sample to the WebGrid Solution Sample.

Please kindly have review on the sample and let me know your response.

Regards,
Hans.

Hi,

Thanks for this, getting close however I think this results in an endless loop as the checkbox checked event is unchecking checkboxes which in turn calls the checkbox checked event which unchecks checkboxes....etc..

What might solve it is if we can test if the checkbox is checked before we uncheck it....this way once the function unchecks a box, it will never touch that box again.

Something like this:

if (row.IsChecked() && !row.ChildExpanded) {

Just not sure about the IsChecked() piece..is that valid?  Should I use Checked?  Or something else?

Also, now that we have the latest version of the WebGrid, I can no longer find the API documentation.  You used to distirbute the client-side and server-side API docs...where are those now?   They are essential for doing development with your tools.

Also tried this: 

if (r.Checked && !r.Visible) {

Hello,

Thank you for your reply.

In my local end, the result is not an endless loop, but it takes more time to WebGrid to finish the checking process, indeed.

Perhaps you should use: “Checked” attribute to validate whether the row is already checked or not. Because there is no IsChecked() method in row object.

You could see / get the WebGrid’s documentation from your local environment, “Start Menu -> All Programs -> Intersoft Premier Studio 2013 R1 -> WebUI Studio for ASP.NET -> WebGrid 8 -> WebGrid 8 Documentation”.

You also could get / download the WebGrid’s documentation from this link below:
-http://intersoftpt.com/Support/WebGrid/Documentation/
-http://intersoftpt.com/Support/WebGrid/WebGrid.chm

To know whether the child row is collapse or expanded, you could use “ChildExpanded” attribute.
The “ChildExpanded” attribute will have False if the child row is collapse and vice versa.

You could use GetParentRow() method to validate whether the row has a parent or not.
Here’s the example snippet code how-to use the GetParentRow() method:

function WebGrid1_OnRowSelect(controlId, tblName, rowIdx, rowElm) {    var WebGrid1 = ISGetObject(controlId);
    var parentRow = WebGrid1.GetSelectedObject().GetRowObject().GetParentRow();
    if (parentRow) {
        alert("This row have parent row ");
    }
    else {
        alert("This row doesn't have parent row ");
    }
    return true; 
}

I use the GetParentRow() method in OnRowSelect client side event.

Hope this helps.

Regards,
Hans.