Thanks for the quick response Luc! Sorry, I should have pointed out this is in a button click event handler. I will trying doing the calculations in a BackgroundWorker, thanks again! Edit: I added a BackgroundWorker and life is good again. Thanks again Luc! I should have worked this one out for myself. I must be having a bad code day.

modified on Sunday, January 2, 2011 1:47 PM

I've been working with C# for about 6 months. This is the first time that a little searching has not resolved a problem for me. I'm trying to change the text of a label and update a progress bar in a loop that does some graphic calculations. The progress bar is working fine but the label text does not change until the loop has completed.

        int nImgCnt = m\_Parent.m\_ImageList.Count - 1;
        int nStatBarAdd = 1000 / nImgCnt;

        for (int nIdx = 0; nIdx <= nImgCnt; nIdx++)
        {   //FInd Min rectangle that will contain largest image
           lblProg.Text = "Calculating minimum image size. Image " + (nIdx+1).ToString() + " of " + (nImgCnt + 1).ToString();
           lblProg.Focus();        //Tried this just to see if it would work
           lblProg.Invalidate();   //Tried this just to see if it would work
           CurRC = getImageMinSize(m\_Parent.m\_ImageList\[nIdx\]); 
            if (CurRC.Width > MinRC.Width)
            {
                MinRC.Width = CurRC.Width;
                MinRC.X = CurRC.X;
            }
            if (CurRC.Height > MinRC.Height)
            {
                MinRC.Height = CurRC.Height;
                MinRC.Y = CurRC.Y;
            }
            prgBr.Value += nStatBarAdd;

        }

If anyone can help me out with this I will really appreciate it!