Excel的相关操作

有关Excel的操作

 

在执行Excel的操作时，首先加入引用：microsoft.office.iterop.Excel.要引用数据库连接时加引用：System.date.sqlClient

从Excel中读出数据到DatagridView中：

public void  Reader(DataGridView dgv)
        {
            try
            {
                string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\\Documents and Settings\\di\\桌面\\SMAPLE_GD2_master_data.xls;Extended Properties=Excel 8.0";
                OleDbConnection OleDB = new OleDbConnection(strConn);
                OleDbDataAdapter OleDat = new OleDbDataAdapter("select * from [ConfigSheetLabel$]", OleDB);
                DataTable dt = new DataTable();
                OleDat.Fill(dt);
               dgv.DataSource= dt.DefaultView;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }      
        }

 

将DataGridView中的数据写入到Excel中：

public bool Writer(DataGridView dgv, bool isShowExcel)
        {
            if (dgv.Rows.Count < 1)
            {
                return false;
            }
            Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();
            excel.Application.Workbooks.Add(true);
            excel.Visible = isShowExcel;
            for (int i = 0; i < dgv.ColumnCount; i++)
            {
                excel.Cells[1, i + 1] = dgv.Columns[i].HeaderText;
            }
            for (int i = 0; i < dgv.Rows.Count - 1; i++)
            {
                for (int j = 0; j < dgv.ColumnCount; j++)
                {
                    if (dgv[j, i].ValueType == typeof(string))
                    {
                        excel.Cells[i + 2, j + 1] = "" + dgv[j, i].Value.ToString();
                    }
                    else
                    {
                        excel.Cells[i + 2, j + 1] = dgv[j, i].Value.ToString();
                    }
                }
            }
            return true;
        }