DataGridView data export to excel (in case of small amount of data)

public bool ExportDataGridview(DataGridView gridView, bool isShowExcle) { if (gridView.Rows.Count == 0) return false; // establish Excel object Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application(); excel.Application.Workbooks.Add(true); excel.Visible = isShowExcle; // Generate field name for (int i = 0; i < gridView.ColumnCount; i++) { excel.Cells[1, i + 1] = gridView.Columns[i].HeaderText; } // Fill in the data for (int i = 0; i < gridView.RowCount - 1; i++) { for (int j = 0; j < gridView.ColumnCount; j++) { if (gridView[j, i].ValueType == typeof(string)) { excel.Cells[i + 2, j + 1] = "'" + gridView[j, i].Value.ToString(); } else { excel.Cells[i + 2, j + 1] = gridView[j, i].Value.ToString(); } } } return true; } 

The problem is . After export , Save and close excel file . There is still one in the process excel.exe The process of .

After the program is executed , Call garbage collection GC.Collect() Can clear the process of excel.exe.. The garbage collection mechanism is really alas ！！！