Wednesday, May 8, 2013

Active Reports HTML viewer skinning

My company recently migrated from Microsoft's reporting services to Active Reports.  I wrote a post here about my complaints and assessment of the product.

One of the big problems with the HTML viewer is the HTML code it generates and its heavy reliance on absolute positioning.  It is some of the worst code I have seen a control generate, I suppose it is supposed to be for flexibility, however none of the flexibility has been made available to us yet.

In order to make this control work for my companies spreadsheet style reporting, I had to come up with a cross between the HtmlView and the RawHTML output.  The raw HTML worked better in page flow usually, but it didn't have paging which is a pretty nice feature.  So I generating the following CSS snippet in an attempt to make the HtmlView just a little closer to the RawHTML output.

.rptDiv and #controlTable and #rptFilter are my own personal divs wrapping the viewer output and my custom parameters, they should not be necessary for the CSS to function correctly.

There are three main features that this CSS changes.  Overflow to remove the extra scrollbars that the viewer adds to the page.  Left and top positioning to get rid of the dumb one inch white space margin that the viewer creates.  And Z-index because moving the main panel one inch up and left causes an invisible portion of the viewer control to be placed on top of any controls in the nearby area; and so it needs to be stuff behind them.

#viewer-layout-main-panel > div > div > div > div > span {
    border:solid 1px;
    border-color:white;
}
.rptDiv,
.viewer-layout-container,
.viewer-layout-container div {
    overflow:visible !important;
    z-index:2;
}
#controlTable,
.viewer-layout-main-panel {
    border:none !important;
}
.viewer-layout-main-panel > div > div {
    left:-1in;
    top:-1in;
    width:0px !important;
           
}
#rptFilter,
#viewer-layout-toolbar-panel {
    z-index:3 !important;
    position:relative;
}

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