Google visualization is small inside AJAX Control Toolkit Tab Control

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被撕碎了的回忆 2021-01-29 00:32

I\'m trying to use a google visualisation, the column chart, inside an asp.net AJAX Toolkit Tab Control, but I\'m having small (literally) problems.

If I add the visual

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  •  自闭症患者
    2021-01-29 01:10

    Ok, I didn't get a single response to this post so here is how I worked around the problem, hope it helps someone.

    I never actually got the the root of this problem but I found that if I delayed the loading of the Visualisations till the tab that contains it is clicked then the problem goes away.

    In the TabControl I call a JavaScript function to load the tabs visualisation when clicked:

    
      
        
          

    The JavaScript function

    function tabChanged(sender, args) {
            var ActiveTab = sender.get_activeTabIndex();
            if (sender.get_activeTabIndex() == 0) {
                if (tab0Loaded != true) { 
                    //load the visualisation
                    new google.visualization.ColumnChart(document.getElementById('visualization2')).draw(data, null);
                    tab0Loaded = true
                }
            }
            if (sender.get_activeTabIndex() == 1) {
                if (tab1Loaded != true) { 
                    //load the visualisation
                    new google.visualization.ColumnChart(document.getElementById('visualization2')).draw(data, null);
                    tab1Loaded = true
                }
            }
    
     }
    

    During postback the active tab could change, to cope with this I have a JavaScript function that executes when the page loads, if the current active tab is one containing a visualisation then I load it.

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