C#程序中操作Excel的问题？

Posted 2023-03-03

怎样把程序中的表格式是数据导出到Excel中去，Excel 的api文档那里有啊，

多给点分吗？ 这是一个sample。。。。

public partial class Window1 : Window

DataTable dt = new DataTable();
object misValue = System.Reflection.Missing.Value;
public Window1()

InitializeComponent();
dt.Columns.Add("AA", typeof(string));
dt.Columns.Add("BB", typeof(string));
dt.Rows.Add("11", "22");
dt.Rows.Add("33", "44");

this.dataGrid1.ItemsSource = ((IListSource)dt).GetList();


private void Button_Click(object sender, RoutedEventArgs e)

#region
Microsoft.Office.Interop.Excel.Application app=null;
Microsoft.Office.Interop.Excel.Workbook wb = null;
Microsoft.Office.Interop.Excel.Worksheet ws=null;
try

app = new Microsoft.Office.Interop.Excel.Application();
wb = app.Workbooks.Add(misValue);
ws = app.ActiveWorkbook.ActiveSheet as Microsoft.Office.Interop.Excel.Worksheet;
Microsoft.Office.Interop.Excel.Range range;

range = ws.get_Range("A2", misValue);
range = range.get_Resize(dt.Rows.Count, dt.Columns.Count);

Microsoft.Office.Interop.Excel.Range columnNameRange;
columnNameRange = ws.get_Range("A1", misValue);
columnNameRange = columnNameRange.get_Resize(1, dt.Columns.Count);

string[] columNames = new string[dt.Columns.Count];

for(int i=0;i<dt.Columns.Count;i++)
columNames[i] = dt.Columns[i].ColumnName;
columnNameRange.set_Value(misValue, columNames);

string[,] arr = new string[dt.Rows.Count, dt.Columns.Count];
for (int i = 0; i < dt.Rows.Count; i++)

for (int j = 0; j < dt.Columns.Count; j++)

arr[i, j] = dt.Rows[i][j].ToString();


range.set_Value(misValue, arr);
wb.Close(true, "D:\\Test.xlsx", misValue);

catch (Exception ex)

Trace.WriteLine(ex.Message.ToString());

finally

// make sure the office process quit after certain operations done.
if (app != null)

app.UserControl = false;
app.Quit();
app = null;


#endregion

参考技术A C#貌似不需要API就可以做到，用连接字符串可以直接读取到文件的内容，不过写入就不太清楚了 参考技术B 这段代码 修改下 应该能用

/// <summary>
/// 执行导出
/// </summary>
/// <param name="ds">要导出的DataSet</param>
/// <param name="strExcelFileName">要导出的文件名(详细路径加文件名)</param>
private static void doExport(DataSet ds, string strExcelFileName)

Excel.Application excel = new Excel.Application();
if (excel == null)

MessageBox.Show("无法启动Excel，可能您的电脑未安装Excel");
return;

try

int rowIndex = 1;
int colIndex = 0;

excel.Application.Workbooks.Add(true);

System.Data.DataTable table = ds.Tables[0];
foreach (DataColumn col in table.Columns)

colIndex++;
excel.Cells[1, colIndex] = col.ColumnName;


foreach (DataRow row in table.Rows)

rowIndex++;
colIndex = 0;
foreach (DataColumn col in table.Columns)

colIndex++;
excel.Cells[rowIndex, colIndex] = row[col.ColumnName].ToString();


excel.Visible = false;
//excel.Sheets[0] = "消息";
excel.DisplayAlerts = false;
excel.ActiveWorkbook.SaveCopyAs(strExcelFileName);

excel.Quit();
excel = null;
MessageBox.Show("数据导出成功！", "消息", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);


catch (Exception ex)

MessageBox.Show(ex.ToString());

finally

GC.Collect();//垃圾回收

参考技术C //导出：
Excel.Application excel = new Excel.Application();
excel.Application.Workbooks.Add(true);

for (int i = 1; i <= dt.Columns.Count; i++)//打印表头

excel.Cells[1, i] = dt.Columns.ColumnName.ToString();

for (int i = 2; i <= dt.Rows.Count + 1; i++)//打印表的内容

for (int j = 1; j <= dt.Columns.Count; j++)

excel.Cells = dt.Rows[j - 1].ToString();


excel.Visible = true;
//导入：
if (this.DataGrid1.Items.Count != 0)

try

for (int i = 0; i < this.DataGrid1.Items.Count; i++)

model_result.CouseId = int.Parse(this.ddlCourse.SelectedValue.ToString());
model_result.StudentId = this.DataGrid1.Items.Cells[0].Text;
model_result.Terms = this.ddlTerms.SelectedItem.Text;

if (bll_grade.Judge_SomeOne_Student_Is_Have_Exist(model_result))

model_result.TotalScore = float.Parse(this.DataGrid1.Items.Cells[2].Text);
bll_grade.Insert_Student_TotalScore_Online(model_result);



Response.Write("<script>alert('导入成功！');</script>");

catch

Response.Write("<script>alert('导入失败！');</script>");



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