Forcing repainting the cell

[e_LA]

But DataGridViewImageCell does not have a Invalidate method.

[Christian Graus]

Then you probably need to Invalidate the entire grid.

Christian Graus - Microsoft MVP - C++ Metal Musings - Rex and my new metal blog

[e_LA]

There is a method grid.InvalidateCell however I cannot call it because I have to do it from DataGridViewImageCell level (form my own class). I described the problem above. Thanks for advice.

[e_LA]

I think I am near the solution however how to call a method of grid being on DataGridViewImageCell level?

[Ed Poore]

Which methods of the grid. Please elaborate.

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Formula 1 - Short for "F1 Racing" - named after the standard "help" key in Windows, it's a sport where participants desperately search through software help files trying to find actual documentation. It's tedious and somewhat cruel, most matches ending in a draw as no participant is able to find anything helpful. - Shog9 Ed

[e_LA]

I created my own classes public class ImageCell : DataGridViewImageCell { public ImageCell(DataGridView grid) { this.grid = grid; } ........ private void animate(object o, EventArgs e) { DataGridView dgv = (DataGridView)grid; dgv.InvalidateCell(this); /// there is an error } } and public class ImageColumn : DataGridViewColumn { public ImageColumn(DataGridView dgv) { this.CellTemplate = new ImageCell(dgv); this.HeaderText = ""; this.Width = 25; this.Resizable = DataGridViewTriState.False; } } In my application when I have DataGridView I just add ImageColumn object as new column passing DataGridView object to the constructor: ImageColumn imgCol = new ImageColumn(m_DataGridView); m_DataGridView.Columns.Add(imgCol); I do not like to pass such a parameter to the constructor. However how to call InvalidateCell in ImageCell class? thanks Ela

[Ed Poore]

You should be able to get a reference to the DataGridView from the conveniently named property DataGridView in your class since you inherit from DataGridViewColumn / Cell and both these eventually inherit from DataGridViewElement which has a property which provides a reference to the DataGridView.

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Formula 1 - Short for "F1 Racing" - named after the standard "help" key in Windows, it's a sport where participants desperately search through software help files trying to find actual documentation. It's tedious and somewhat cruel, most matches ending in a draw as no participant is able to find anything helpful. - Shog9 Ed

[e_LA]

What a fool I am. How couldn't I see such a beatifull protperty - just DataGridView. Many thanks for help. It is blinking now but there is something with gif. It is displayed as x - as it was no gif. However I think it is another problem. Many thanks one more time Ela

[Ed Poore]

Don't worry I had a similar problem where I spent a whole day ripping code apart trying to find the answer and in the end it was looking me in the face :-O The X is probably because it can't find the gif or there was an error in the drawing code (similar to when a control crashes on the designer).

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Formula 1 - Short for "F1 Racing" - named after the standard "help" key in Windows, it's a sport where participants desperately search through software help files trying to find actual documentation. It's tedious and somewhat cruel, most matches ending in a draw as no participant is able to find anything helpful. - Shog9 Ed

[e_LA]

Such a life of developer :-)