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When DataPageReady is not really ready


JohnM
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In a tabular report, I want to set the .selectedIndex of a dropdown in the inline insert row to match that of the associated dropdown in the search area.

I am using JavaScript inside the Header of the DataPage Elements on Search and Report Wizard - Configure Results Page Fields.

This script does not work.

    document.addEventListener('DataPageReady', function (event) {
        document.getElementById("InlineAddFolder_ID").selectedIndex = document.getElementById("Value4_1").selectedIndex;
    });

I can see that the .selectedIndex gets set, but it then gets immediately returned to the default.

But this script does work.

    document.addEventListener('DataPageReady', function (event) {
        setTimeout(function(){
          document.getElementById("InlineAddFolder_ID").selectedIndex = document.getElementById("Value4_1").selectedIndex;
        }, 500)
    });

Why must I add the delay?

Is the DataPage not really Ready when DataPageReady fires?

Is there a better way to handle this? Should the script be inserted somewhere else?

 

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