C#Winform版获取Excel文件的内容
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C#Winform版获取Excel文件的内容
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1 public MainForm()
2 {
3 InitializeComponent();
4 //this.ofd_in.DefaultExt = ".xlsx";
5 this.ofd_in.Filter = "Excel文件(*.xlsx)|*.xlsx";
6 }
7 // code.GetSheetName getname = new code.GetSheetName();
8 private void btnDr_Click(object sender, EventArgs e)
9 {
10 if (ofd_in.ShowDialog() == System.Windows.Forms.DialogResult.OK)
11 {
12 this.txtFileName.Text = ofd_in.FileName.ToString();
13 List<Model.ExcelSheet> lst = code.GetSheetName.ExcelSheetName(ofd_in.FileName.ToString());
14 cmbBox.DataSource = lst;
15 cmbBox.DisplayMember = "SheetName";
16 cmbBox.ValueMember = "Id";
17
18 //ImportExcel(ofd_in.FileName, "[Sheet1$]");//傳遞excel文件名，和表名
19 }
20 }
21
22 /// <summary>
23 /// 從選擇的excel導入
24 /// </summary>
25 /// <returns></returns>
26 public void ImportExcel(string ExcelName, string Tablename)
27 {
28 // string strcon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + ExcelName + ";Extended Properties='Excel 8.0;HDR=No;IMEX=1';";//連接excel文件的字符串
29
30 string strcon = "Provider=Microsoft.Ace.OleDb.12.0;data source=" + ExcelName + ";Extended Properties='Excel 12.0; HDR=Yes; IMEX=1'"; //此連接可以操作.xls與.xlsx文件 (支持Excel2003 和 Excel2007 的連接字符串)
31 if (ExcelName == null)
32 {
33 return;
34 }
35 OleDbConnection odcon = new OleDbConnection(strcon);//建立連接
36 odcon.Open();//打開連接
37
38 //把數據集dataset放到控件中顯示
39 OleDbDataAdapter odda = new OleDbDataAdapter("select * from " + Tablename, odcon);
40 DataSet ds = new DataSet();
41 try
42 {
43 odda.Fill(ds);
44 }
45 catch (Exception ex)
46 {
47 MessageBox.Show(ex.Message);
48 }
49 if (ds != null)
50 {
51
52 this.dgvdata.DataSource = ds.Tables[0];
53
54 }
55 else
56 {
57 MessageBox.Show("沒有數據");
58 }
59 }
60
61 private void btnClose_Click(object sender, EventArgs e)
62 {
63 this.Close();
64 }
65
66 /// <summary>
67 /// 保存，選中的datagridview的值
68 /// </summary>
69 /// <param name="sender"></param>
70 /// <param name="e"></param>
71 private void btnSave_Click(object sender, EventArgs e)
72 {
73 int selectedCellCount = dgvdata.GetCellCount(DataGridViewElementStates.Selected);
74 if (selectedCellCount > 0)
75 {
76 if (dgvdata.AreAllCellsSelected(true))
77 {
78 MessageBox.Show("All cells are selected", "Selected Cells");
79 }
80 else
81 {
82 StringBuilder sb = new StringBuilder();
83
84 for (int i = 0;
85 i < selectedCellCount; i++)
86 {
87 sb.Append("Row: ");
88 int rows = dgvdata.SelectedCells[i].RowIndex;
89 sb.Append(rows.ToString());
90 sb.Append(", Column: ");
91 int columns = dgvdata.SelectedCells[i].ColumnIndex;
92 sb.Append(columns.ToString());
93 sb.Append(",Value: ");
94 sb.Append(dgvdata.Rows[rows].Cells[columns].Value.ToString());
95 sb.Append(Environment.NewLine);
96 }
97
98 sb.Append("Total: " + selectedCellCount.ToString());
99 MessageBox.Show(sb.ToString(), "Selected Cells");
100 }
101 }
102 }
103
104
105 /// <summary>
106 /// 加載對應的sheet頁
107 /// </summary>
108 /// <param name="sender"></param>
109 /// <param name="e"></param>
110 private void btnSearch_Click(object sender, EventArgs e)
111 {
112 dgvdata.DataSource = null;
113 var sheetname = this.cmbBox.Text.Trim(); ;
114 ImportExcel(this.txtFileName.Text, "["+sheetname+"]");
115 }
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轉載于:https://www.cnblogs.com/Lauyj/p/4364812.html
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