Printing with javascript problems.....div comes as a null string
I am using a javascript function to print a page. I keep getting the string as a null value and im not sure how.....here is the code. The div i have is called divSheet and its set to visible false to begin...when you load information it creates a table in the divSheet and sets it to true. Any ideas why it says the strid in getPrint function is null? Thank you!
<asp:ImageButton runat="server" ID="imageBtnPrint" Style="z-index: 100" ImageUrl="~/Images/printerIcon.gif"
OnClientClick="javascript:getPrint('divSheet')" ToolTip="Print" />
function getPrint(strid)
{
var pp = window.open();
var prtContent = document.getElementById(strid);
pp.document.writeln('<HTML><HEAD><title>Print Confirmation Sheet</title><LINK href=PrintStyle.css type="text/css" rel="stylesheet">')
pp.document.writeln('<LINK href=PrintStyle.css type="text/css" rel="stylesheet开发者_运维技巧" media="print"><base target="_self"></HEAD>')
pp.document.writeln('<body MS_POSITIONING="GridLayout" bottomMargin="0" leftMargin="0" topMargin="0" rightMargin="0">');
pp.document.writeln('<form method="post">');
pp.document.writeln('<TABLE width=100%><TR><TD></TD></TR><TR><TD align=right><INPUT ID="PRINT" type="button" value="Print" onclick="javascript:location.reload(true);window.print();"><INPUT ID="CLOSE" type="button" value="Close" onclick="window.close();"></TD></TR><TR><TD></TD></TR></TABLE>');
pp.document.writeln(document.getElementById(strid).innerHTML);
pp.document.writeln('</form></body></HTML>');
}
I think that's because you are spawning a child window from your main HTML, and the child page cannot access parent's variables directly.
You could set a local variable in the parent HTML to your div's ID, and then from your JS function access it using: window.opener.<variable name>
Something like this: (warning : untested)
...
var divId;
function getPrint(strid)
{
divId = strid;
var pp = window.open();
var prtContent = document.getElementById(window.opener.divId);
...
...
}
加载中,请稍侯......
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