How do I take the value of a column of a data set in a different data set

Migrateduser

<p>Hi I have seen the</p>
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<p><<a data-ipb='nomediaparse' href='http://developer.actuate.com/community/forum/index.php?/topic/25662-binding-multiple-datasets-to-table/'>http://developer.actuate.com/community/forum/index.php?/topic/25662-binding-multiple-datasets-to-table/></a></p&gt;
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<div>How do i take the value of a column of a data set in a different data set in birt. I have only one value in a data set How do i take the value in a different data set </div>
<div>I have tried this so far:</div>
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<div>the column name is not_usable of data set 1 </div>
<div>so i set the beforeOpen Script as:</div>
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<div>NotUsable= new Array();</div>
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<div>and </div>
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<div>OnFetch Script as </div>
<div>NotUsable[row["not_usable"]] = row["not_usable"];</div>
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<div>but the value is not fetched by the script i am using in the different dataset.</div>
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<div>Thanks</div>