C#机房重构——导出Excel表格
来源:互联网 发布:java 字符串转日期 编辑:程序博客网 时间:2024/05/16 13:03
导出Excel表格,当时就是在网上找的,这次依然还是,不过稍微能看懂点是什么意思了,下面把代码分享给小伙伴们。
- using System;
- using System.Collections.Generic;
- using System.Linq;
- using System.Text;
- using System.Threading.Tasks;
- using Microsoft.Office.Interop.Excel;
- using Microsoft.Office.Core;
- using System.Windows.Forms;
- using System.Data.SqlClient;
- using System.Data.OleDb;
- using System.Threading;
-
- namespace UI
- {
- public class Excel
- {
- public void RExcel(string name,DataGridView dgv)
- {
-
- int colCount = dgv.Columns.GetColumnCount(DataGridViewElementStates.Visible);
- int rowCount = dgv.Rows.GetRowCount(DataGridViewElementStates.Visible);
-
- if (dgv.Rows.Count == 0 || rowCount == 0)
- {
- MessageBox.Show("表中没有数据", "提示");
- }
- else
- {
-
- SaveFileDialog save = new SaveFileDialog();
- save.Filter = "excel files(*.xlsx)|*.xlsx";
- 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;
-
-
- Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();
- if (excel == null)
- {
- MessageBox.Show("Excel无法启动", "提示");
- return;
- }
-
- Microsoft.Office.Interop.Excel.Workbook excelBook = excel.Workbooks.Add(true);
- Microsoft.Office.Interop.Excel.Worksheet excelSheet = (Microsoft.Office.Interop.Excel.Worksheet)excelBook.Worksheets[1];
-
-
- int k = 0;
- for (int i = 0; i < dgv.ColumnCount; i++)
- {
- if (dgv.Columns[i].Visible)
- {
- excel.Cells[1, k + 1] = dgv.Columns[i].HeaderText;
- k++;
- }
- }
-
- for (int i = 0; i < dgv.RowCount; i++)
- {
- k = 0;
- for (int j = 0; j < dgv.ColumnCount; j++)
- {
- if (dgv.Columns[j].Visible)
- {
- 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);
- MessageBox.Show("导出成功!");
- }
- catch
- {
- MessageBox.Show("导出失败,文件可能正在使用中", "提示");
- }
-
- }
- }
- }
- }
- }
上面是在我们的方法类中,在界面中,如果我们需要用这个方法:
- private void btnExcel_Click(object sender, EventArgs e)
- {
- string name = "";
- Excel ex = new Excel();
- ex.RExcel(name,dataGridView1);
- }