Question

I am doing something in wpf where in a datagrid is populated. I need that for each row in the datagrid, when i point my mouse, a tooltip should be visible containing an image. And this image will be different for each row of the datagrid. How do i go about it. I have been able to do this:

Image img = new Image();
        BitmapImage bmp = new BitmapImage();
        bmp.BeginInit();
        bmp.UriSource = new Uri(Directory.GetCurrentDirectory()+ "\Kartik.JPG");
        bmp.DecodePixelHeight=200;
        bmp.DecodePixelWidth=200;
        bmp.EndInit();
        img.Source=bmp;
        ToolTipService.SetPlacement(dgAssortment, System.Windows.Controls.Primitives.PlacementMode.Center);
        ToolTipService.SetToolTip(dgAssortment, img);
        ToolTipService.SetShowDuration(dgAssortment, 99999999);

But this shows the same image for the entire datagrid, irrespective of what row i keep my mouse pointer on. How can I make this image different for each row populated in the datagrid. Please help. Thanks in advance.

Answer 1

It looks like you re setting the tooltip for the entire datagrid:

ToolTipService.SetPlacement(dgAssortment, (I m assuming dgAssortment is your datagrid).

You ll need to do this for each row, either by looping through manually, or hooking into some event that s fired when data binding occurs. In VS 2010 Beta 2, the WPF DataGrid has a LoadingRow event that you might be able to use.

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