how to hide div using java script ?

Question

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i have a problem to hide div using java script plz help me my ssample code is as

XML

<script type ="text/javascript" language ="javascript" >
function hideDiv()
{
var divs = document.getElementById ("treelist");
//divs.disabled =false ;
//divs.visible=true;
divs .setAttribute ('visible','true' );

}
</script>

and div is as

XML

<div id= "treelist" visible ="false"  runat ="server"  >
        <asp:TreeView ID="tvDept" runat="server" BorderStyle="Solid" Width="156px"
          >
            <Nodes>
                <asp:TreeNode Text="New Node" Value="New Node"></asp:TreeNode>
                <asp:TreeNode Text="New Node" Value="New Node">
                    <asp:TreeNode Text="New Node" Value="New Node"></asp:TreeNode>
                </asp:TreeNode>
                <asp:TreeNode Text="New Node" Value="New Node">
                    <asp:TreeNode Text="New Node" Value="New Node"></asp:TreeNode>
                </asp:TreeNode>
                <asp:TreeNode Text="New Node" Value="New Node"></asp:TreeNode>
            </Nodes>
        </asp:TreeView>
    </div>

Posted 27-Jun-10 20:12pm

Yogesh M Patil

Updated 27-Jun-10 20:45pm

v2

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Sandeep Mewara 28-Jun-10 2:59am

Posted a comment to your follow up question.

1 solution

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Sandeep Mewara · Accepted Answer · 2010-06-27T20:40:00

Solution 1

yogeshptl wrote:

You used an attribute 'visible' here. If you use that and set it to false then it would not be present in the page anymore and thus Javascript wont be able to find it.

Instead use 'display' attribute.

XML

<div style="display:none">

This will keep the control on page and accessible in Javascript.

For toggling the value of display try:

JavaScript

var divs = document.getElementById ("treelist");
// to show
divs.style.display = "block";
// to hide
divs.style.display = "none";

Posted 27-Jun-10 20:40pm

Sandeep Mewara

Updated 27-Jun-10 20:44pm

v2

Comments

Yogesh M Patil 28-Jun-10 2:53am

thanks Sandeep for replay, but this code not work.

Sandeep Mewara 28-Jun-10 2:59am

What do you mean it doesn't work.
Remove the runat=server tag from div and try. You must be using this in a master page/content page where the Id won't be treelist in JS.

If it doesnt work, debug and see what issue/error you get.
What i told is correct and should work.

Yogesh M Patil 28-Jun-10 3:20am

thank i remove the runat tag its work fine . thank you again.