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how can I disable button if table row appended was Empty?

Posted on 2014-09-19
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Last Modified: 2014-09-20
I have a create button which disabled at first I want to enable it when the table row has a record, how can i do this? I have jquery here, how can I improved this?

 $("#btnCreateExecutiveShareList").click(function () {
         
            var numberOfRows = $('#AppendedTableEmployeeShare > tbody > tr').length;
            if (numberOfRows == 0 || numberOfRows == "") {
                $("#btnCreateExecutiveShareList").attr("disabled", true)
            }
            else
            {
                $("#btnCreateExecutiveShareList").attr("disabled", false)
            }
        });
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Question by:jabz ayuap
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2 Comments
 
LVL 21

Accepted Solution

by:
Randy Poole earned 2000 total points
ID: 40332333
What you are doing is fine. If you want to compact it then:
 $("#btnCreateExecutiveShareList").click(function () {
          
            var numberOfRows = $('#AppendedTableEmployeeShare > tbody > tr').length;
            $("#btnCreateExecutiveShareList").attr("disabled", (numberOfRows == 0 || numberOfRows == ""));
        });

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Author Comment

by:jabz ayuap
ID: 40332357
Hi randy what if the number of rows = 0 and the button disabled what if i remove the value, how can i disable it again?
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