update group checkbox when Data item checkbox are selected

[Andrew]

I have a grid with a that I dynamically created a checkbox on the Group Header. I am trying to toggle the checkboxes in the data item to check or uncheck the group checkbox. The code below is selecting the Header checkbox and not the group checkbox. How can I acheive this?

protected void ToggleRowSelection(object sender, EventArgs e)
        {
            ((sender as CheckBox).NamingContainer as GridItem).Selected = (sender as CheckBox).Checked;
            bool checkHeader = true;
                foreach (GridDataItem dataItem in rgvFunctions.MasterTableView.Items)
                {
                    if (!(dataItem.FindControl("isFunction") as CheckBox).Checked)
                    {
                        checkHeader = false;
                        break;
                    }
                }
               
       
            GridHeaderItem headerItem = rgvFunctions.MasterTableView.GetItems(GridItemType.Header)[0] as GridHeaderItem;
            (headerItem.FindControl("CheckAll") as CheckBox).Checked = checkHeader;
           
        }

[Eyup]

Hello Andrew,

This requirement is not supported out of the box. You can try to implement some kind of custom jQuery solution using CSS classes or other indication or log it as a feature request in our improvements portal and our dev team may consider implementing it for the future releases:
http://feedback.telerik.com/Project/108

Regards,
Eyup
Telerik

[Andrew]

I found the solution. I first find the GroupHeader and iterate through the child 

 

protected void ToggleRowSelection(object sender, EventArgs e)
        {
            ((sender as CheckBox).NamingContainer as GridItem).Selected = (sender as CheckBox).Checked;
            bool checkHeader = true;
            foreach (GridGroupHeaderItem headerItem in rgvFunctions.MasterTableView.GetItems(GridItemType.GroupHeader))
            {
                checkHeader = true;
                GridItem[] children = headerItem.GetChildItems();
                foreach (GridItem child in children)
                {
                    if (!(child.FindControl("isFunction") as CheckBox).Checked)
                    {
                        checkHeader = false;
                        break;
                    }
                }

                var checkbox = headerItem.FindControl("CheckAll") as CheckBox;
                   checkbox.Checked = checkHeader;
            }
        }

[Eyup]

Hello Andrew,

Thank you for sharing your specific approach with our community. I hope it may prove helpful to other developers as well.

Regards,
Eyup
Telerik