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        private void dgBmpDaten_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
        {
            Button cmdColDlg = new Button();
            cmdColDlg.Dock = DockStyle.Right;
            cmdColDlg.Name = "cmdColorDialog";
            cmdColDlg.Text = ">C<";
            cmdColDlg.Width = 25;
            if (!dgBmpDaten.EditingPanel.Controls.ContainsKey(cmdColDlg.Name))
            { 
                dgBmpDaten.EditingPanel.Controls.Add(cmdColDlg);

            }
             cmdColDlg.BringToFront();
         }                    

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            iOffBmpDat = btBmpBytes[10];
            int iCheck = 0;
            for (int k = 0; k <= iGridWidth-1; k++)
            {
                for (int l = 0; l <= iGridHeight-1; l++)
                {
                    for( int m = 0; m <=2; m++)
                    {
                        if((btBmpBytes[18]%2)!= 0)
                        {
                            if (iCheck == 9)
                            {
                                iOffBmpDat+=3;
                                iCheck = 0;
                            }  

                        }
                        btRGB_Values[m] = btBmpBytes[iOffBmpDat];
                        strRGB_Values = string.Concat(string.Concat(btRGB_Values[0].ToString()+ " / ",
                                                        btRGB_Values[1].ToString()) + " / ", btRGB_Values[2].ToString());
                                   
                        iOffBmpDat ++;
                        iCheck++;
                    }
                    dgBmpDaten.Rows[k].Cells[l].Value = strRGB_Values;
                    strPixTable[k, l] = strRGB_Values;


               }
            }
        }