using System.IO;
using System.Runtime.InteropServices;
using Excel = Microsoft.Office.Interop.Excel;
private void Btn_Click(object sender, EventArgs e)
{
//创建一个EXCEL文档
CreateExcel("标题","文档.XLS", "工作表名");
}
private void CreateExcel(string title, string fileName, string sheetNames)
{
//待生成的文件名称
string FileName = fileName;
string FilePath = strCurrentPath + FileName;
FileInfo fi = new FileInfo(FilePath);
if (fi.Exists) //判断文件是否已经存在,如果存在就删除!
{
fi.Delete();
}
if (sheetNames != null && sheetNames != "")
{
Excel.Application m_Excel = new Excel.Application();//创建一个Excel对象(同时启动EXCEL.EXE进程)
m_Excel.SheetsInNewWorkbook = 1;//工作表的个数
Excel._Workbook m_Book = (Excel._Workbook)(m_Excel.Workbooks.Add(Missing.Value));//添加新工作簿
Excel._Worksheet m_Sheet;
#region 处理
DataSet ds= ScData.ListData("exec Vote_2008.dbo.P_VoteResult_Update " + int.Parse(fdate));
if (ds.Tables.Count<= 0)
{
MessageBox.Show("没有最新数据!");
return;
}
DataTableToSheet(title, ds.Tables[0], m_Sheet, m_Book, 0);
#endregion
#region 保存Excel,清除进程
m_Book.SaveAs(FilePath, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Excel.XlSaveAsAccessMode.xlNoChange, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value);
//m_Excel.ActiveWorkbook._SaveAs(FilePath, Excel.XlFileFormat.xlExcel9795, null, null, false, false, Excel.XlSaveAsAccessMode.xlNoChange, null, null, null, null, null);
m_Book.Close(false, Missing.Value, Missing.Value);
m_Excel.Quit();
System.Runtime.InteropServices.Marshal.ReleaseComObject(m_Book);
System.Runtime.InteropServices.Marshal.ReleaseComObject(m_Excel);
m_Book = null;
m_Sheet = null;
m_Excel = null;
GC.Collect();
//this.Close();//关闭窗体
#endregion
}
}
#region 将DataTable中的数据写到Excel的指定Sheet中
/// <summary>
/// 将DataTable中的数据写到Excel的指定Sheet中
/// </summary>
/// <param name="dt"></param>
/// <param name="m_Sheet"></param>
public void DataTableToSheet(string title, DataTable dt, Excel._Worksheet m_Sheet,
Excel._Workbook m_Book, int startrow)
{
//以下是填写EXCEL中数据
Excel.Range range = m_Sheet.get_Range(m_Sheet.Cells[1, 1], m_Sheet.Cells[1, 2]);
range.MergeCells = true; //合并单元格
range.Font.Bold = true; //加粗单元格内字符
//写入题目
m_Sheet.Cells[startrow, startrow] = title;
int rownum = dt.Rows.Count;//行数
int columnnum = dt.Columns.Count;//列数
int num = rownum + 2; //得到数据中的最大行数
//写入列标题
for (int j = 0; j < columnnum; j++)
{
int bt_startrow = startrow + 1;
//将字段名写入文档
m_Sheet.Cells[bt_startrow, 1 + j] = dt.Columns[j].ColumnName;
//单元格内背景色
m_Sheet.get_Range(m_Sheet.Cells[bt_startrow, 1 + j], m_Sheet.Cells[bt_startrow, 1 + j]).Interior.ColorIndex = 15; }
//逐行写入数据
for (int i = 0; i < rownum; i++)
{
for (int j = 0; j < columnnum; j++)
{
m_Sheet.Cells[startrow + 2 + i, 1 + j] = dt.Rows[i][j].ToString();
}
}
m_Sheet.Columns.AutoFit();
//在当前工作表中根据数据生成图表
CreateChart(m_Book, m_Sheet, num);
}
private void CreateChart(Excel._Workbook m_Book,Excel._Worksheet m_Sheet,int num)
{
Excel.Range oResizeRange;
Excel.Series oSeries;
m_Book.Charts.Add(Missing.Value, Missing.Value, 1, Missing.Value);
m_Book.ActiveChart.ChartType = Excel.XlChartType.xlLine;//设置图形
//设置数据取值范围
m_Book.ActiveChart.SetSourceData(m_Sheet.get_Range("A2", "C" + num.ToString()), Excel.XlRowCol.xlColumns);
//m_Book.ActiveChart.Location(Excel.XlChartLocation.xlLocationAutomatic, title);
//以下是给图表放在指定位置
m_Book.ActiveChart.Location(Excel.XlChartLocation.xlLocationAsObject, m_Sheet.Name);
oResizeRange = (Excel.Range)m_Sheet.Rows.get_Item(10, Missing.Value);
m_Sheet.Shapes.Item("Chart 1").Top = (float)(double)oResizeRange.Top; //调图表的位置上边距
oResizeRange = (Excel.Range)m_Sheet.Columns.get_Item(6, Missing.Value); //调图表的位置左边距
// m_Sheet.Shapes.Item("Chart 1").Left = (float)(double)oResizeRange.Left;
m_Sheet.Shapes.Item("Chart 1").Width = 400; //调图表的宽度
m_Sheet.Shapes.Item("Chart 1").Height = 250; //调图表的高度
m_Book.ActiveChart.PlotArea.Interior.ColorIndex = 19; //设置绘图区的背景色
m_Book.ActiveChart.PlotArea.Border.LineStyle = Excel.XlLineStyle.xlLineStyleNone;//设置绘图区边框线条
m_Book.ActiveChart.PlotArea.Width = 400; //设置绘图区宽度
//m_Book.ActiveChart.ChartArea.Interior.ColorIndex = 10; //设置整个图表的背影颜色
//m_Book.ActiveChart.ChartArea.Border.ColorIndex = 8;// 设置整个图表的边框颜色
m_Book.ActiveChart.ChartArea.Border.LineStyle = Excel.XlLineStyle.xlLineStyleNone;//设置边框线条
m_Book.ActiveChart.HasDataTable = false;
//设置Legend图例的位置和格式
m_Book.ActiveChart.Legend.Top = 20.00; //具体设置图例的上边距
m_Book.ActiveChart.Legend.Left = 60.00;//具体设置图例的左边距
m_Book.ActiveChart.Legend.Interior.ColorIndex = Excel.XlColorIndex.xlColorIndexNone;
m_Book.ActiveChart.Legend.Width = 150;
m_Book.ActiveChart.Legend.Font.Size = 9.5;
//m_Book.ActiveChart.Legend.Font.Bold = true;
m_Book.ActiveChart.Legend.Font.Name = "宋体";
//m_Book.ActiveChart.Legend.Position = Excel.XlLegendPosition.xlLegendPositionTop;//设置图例的位置
m_Book.ActiveChart.Legend.Border.LineStyle = Excel.XlLineStyle.xlLineStyleNone;//设置图例边框线条
//设置X轴的显示
Excel.Axis xAxis = (Excel.Axis)m_Book.ActiveChart.Axes(Excel.XlAxisType.xlValue, Excel.XlAxisGroup.xlPrimary);
xAxis.MajorGridlines.Border.LineStyle = Excel.XlLineStyle.xlDot;
xAxis.MajorGridlines.Border.ColorIndex = 1;//gridLine横向线条的颜色
xAxis.HasTitle = false;
xAxis.MinimumScale = 1500;
xAxis.MaximumScale = 6000;
xAxis.TickLabels.Font.Name = "宋体";
xAxis.TickLabels.Font.Size = 9;
//设置Y轴的显示
Excel.Axis yAxis = (Excel.Axis)m_Book.ActiveChart.Axes(Excel.XlAxisType.xlCategory, Excel.XlAxisGroup.xlPrimary);
yAxis.TickLabelSpacing = 30;
yAxis.TickLabels.NumberFormat = "M月D日";
yAxis.TickLabels.Orientation = Excel.XlTickLabelOrientation.xlTickLabelOrientationHorizontal;//Y轴显示的方向,是水平还是垂直等
yAxis.TickLabels.Font.Size = 8;
yAxis.TickLabels.Font.Name = "宋体";
//m_Book.ActiveChart.Floor.Interior.ColorIndex = 8;
oSeries = (Excel.Series)m_Book.ActiveChart.SeriesCollection(1);
oSeries.Border.ColorIndex = 45;
oSeries.Border.Weight = Excel.XlBorderWeight.xlThick;
oSeries = (Excel.Series)m_Book.ActiveChart.SeriesCollection(2);
oSeries.Border.ColorIndex = 9;
oSeries.Border.Weight = Excel.XlBorderWeight.xlThick;
}