Hi,

during testing yesterday I got an OutOfMemoryException when trying to load about 20.000 rows into UltraGrid. Today I was investigating little bit more why this exception occurs, detected a rather interesting thing:

In the UltraGrid I'm using one column to display the status of the data that is displayed in the row using different images in .png-format. Each of this images has a size of around 1k. I now loaded 10.000 rows of data into the UltraGrid both with displaying the status image and without showing it, examined the memory usage of my application with Windows Task Manager:

• 438,164MB - without showing the status image
• 993,644MB - with showing the status image

I can imagine, that UltraGrid needs some overhead to display the image but that it suddenly needs more than double of memory is imho a little bit to much. The way I'm initializing the image is in the InitializeRow event handler of the UltraGrid by applying following code snippet:

private void OnInitializeRow(object sender, InitializeRowEventArgs e)
{
UltraGridCell statusCell= e.Row.Cells["StatusRow"];
statusCell.Appearance.ImageBackground = Resources.StatusImage1;
}

StatusImage1 is the .png-file.

Is there maybe a better and less memory consuming way to do that?

Regards,

Wolfgang