Question

C#怎么把数据写入到.xls表格里单元格

Answer 1

/// <summary> 将DataGridView 写入ExceL中去
        /// </summary>   
        /// <param name="dgv">保存的文件名称</param>     
        public void DataGridViewToExcel(DataGridView dgv, string name)
        {    
            //总可见列数，总可见行数 
            int colCount = dgv.Columns.GetColumnCount(DataGridViewElementStates.Visible);
            int rowCount = dgv.Rows.GetRowCount(DataGridViewElementStates.Visible);
            //dataGridView 没有数据提示 
            if (dgv.Rows.Count == 0 || rowCount == 0) { MessageBox.Show("表中没有数据", "提示"); }
            else
            {                //选择创建文件的路径         
                SaveFileDialog save = new SaveFileDialog(); 
                save.Filter = "excel files(*.xls)|*.xls"; 
                save.Title = "请选择要导出数据的位置";
                save.FileName = name + DateTime.Now.ToLongDateString();
                if (save.ShowDialog() == DialogResult.OK)
                {
                    string fileName = save.FileName;                    //MessageBox.Show(save.FileName);
                    // 创建Excel对象     
                    Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();//new Microsoft.Office.Interop.Excel.ApplicationClass();    
                    if (excel == null) { MessageBox.Show("Excel无法启动", "提示"); return; }
                    //创建Excel工作薄        
                    Microsoft.Office.Interop.Excel.Workbook excelBook = excel.Workbooks.Add(true);
                    Microsoft.Office.Interop.Excel.Worksheet excelSheet = (Microsoft.Office.Interop.Excel.Worksheet)excelBook.Worksheets[1];
                    //excel.Application.Workbooks.Add(true);
                    //生成字段名称      
                    int k = 0; for (int i = 0; i < dgv.ColumnCount; i++)
                    {
                        if (dgv.Columns[i].Visible)  //不导出隐藏的列               
                        { excel.Cells[1, k + 1] = dgv.Columns[i].HeaderText; k++; }
                    }
                    //填充数据
                    for (int i = 0; i < dgv.RowCount; i++)
                    {
                        k = 0; for (int j = 0; j < dgv.ColumnCount; j++)
                        {
                            if (dgv.Columns[j].Visible)
                            //不导出隐藏的列   
                            {
                                if (dgv[j, i].ValueType == typeof(string))
                                { excel.Cells[i + 2, k + 1] = "" + dgv[j, i].Value.ToString(); }
                                else { excel.Cells[i + 2, k + 1] = dgv[j, i].Value.ToString(); }
                            } k++;
                        }
                    } try { excelBook.Saved = true; excelBook.SaveCopyAs(fileName); }
                    catch { MessageBox.Show("导出失败，文件可能正在使用中", "提示"); }
                }
            }
        }