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Shane
945
Need JavaScript function to clear checkboxes
posted

Hello,

I need to be able to clear out all checkboxes in my treeview via javascript. I tried guessing on what the function might be:

var control = $find('<%=selectuser.ClientID %>');
checkedItems = control.get_checkedNodes();
for (var i = 0; i < checkedItems.length; i++) {
     checkedItems[i].set_checkState() = 0;
}

but this didn't work as the items still displayed a check in the checkbox.  Can I please be given the syntax to clearing out all checkboxes on clientside?

 

Thanks.

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  • 49378
    posted

    Hello Shane,

    Thank you for posting in the community.

    As set_checkState is a function the desired state value should be passed as a parameter to it.

    Please note that after unchecking a node, the checked nodes collection of the tree would also be automatically updated. Below is a sample function for deselecting all tree nodes:

    Code Snippet
    1. function deselectNodes() {
    2.     var control = $find('<%=WebDataTree1.ClientID %>');
    3.  
    4.     while (control.get_checkedNodes().length > 0) {
    5.         control.get_checkedNodes()[0].set_checkState(0);
    6.     }
    7.  
    8.  
    9. }

    Hope this helps.

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