VS 2010 使用小积累

ctrl+k,ctrl+d代码自动整理快捷键
ctrl+e,c     注释选中的代码
ctrl+e,u     取消注释选中的代码

streamwrite 的声明 using system.io;

c# 调用计算器的方法：System.Diagnostics.Process.Start("calc.exe");
 调用记事本的方法：System.Diagnostics.Process.Start("notepad.exe");

//将datagridview中的数据转换成excel数据的方法：

public bool ExportDataGridview(DataGridView gridView,bool isShowExcle)
        {
            if (gridView.Rows.Count == 0)
                return false;
            //建立Excel对象

            Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();

            //Microsoft.Office.Interop.Excel._Application excel = new Microsoft.Office.Interop.Excel.ApplicationClass();  

            excel.Application.Workbooks.Add(true);
            excel.Visible = isShowExcle;
            //生成字段名称
            for (int i = 0; i < gridView.ColumnCount; i++)
            {
                excel.Cells[1, i + 1] = gridView.Columns[i].HeaderText;
            }
            //填充数据
            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;
        }