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Ray Sims
380
Having trouble with putting an image in a cell
posted

I'm getting rather frustrated trying to display an image in a cell.

First, I'm adding an extra column maually to contain the image cell, like this:

Infragistics.Win.UltraWinGrid.UltraGridColumn iconColumn= grid.DisplayLayout.Bands[0].Columns.Add("IconColumn");
grid.DisplayLayout.Bands[0].Columns["IconColumn"].Style = Infragistics.Win.UltraWinGrid.ColumnStyle.Image;
grid.DisplayLayout.Bands[0].Columns["IconColumn"].Hidden = false;
grid.DisplayLayout.Bands[0].Columns["IconColumn"].Header.VisiblePosition = 0;
grid.DisplayLayout.Bands[0].Columns["IconColumn"].Header.Caption = "Icon";

Next, in the InitializeRow event, I say:

if (Convert.ToBoolean(e.Row.Cells["RadioExists"].Value.ToString())== true)
  {
    e.Row.Cells["IconColumn"].Appearance.BackColor = System.Drawing.Color.Black;
    e.Row.Cells["IconColumn"].Appearance.Image = System.Drawing.Image.FromFile(@"FilePath");

  }

it colors the cell fine, but doesn't show my image. I'm sure the image exists and it is loaded because I've checked the Appearance.Image after it runs and there is a value in there. What am I doing wrong?

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  • 170
    posted

    I always set the value of the column to a System.Drawing.Image .. i don't think its the appearance that you're looking for.

     

    e.Row.Cells["Key"].Value = image

     also, I'm not sure how much IO overhead there is in doing Image.FromFile for every row but you might consider pre-loading your images in the form's Load or something and just making the assignment when the rowInit fires.

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