关于C#操作EXCEL,生成图表的全面应用之一(利用Microsoft.Office.Interop.Excel) 收藏
近来我在开发一个运用C#生成EXCEL文档的程序,其中要根据数据生成相应的图表,该图表对颜色和格式都有严格的要求,在百度和谷歌中搜索了所有的相关信息,只有部分介绍,具体格式的介绍没有,经过我不断的实践和探索,终于完成了这项艰巨的任务。 有两种实现方式,一种是利用OWC11组件完成,一种运用Excel完成!
运用OWC11的完成,适合生成一个图形文件,之后不能不在文件中编辑;运用Excel则更适合利用EXCEL文件中的数据直接在文件中加入图表,方便以后编辑!两种我都尝试了,由于我更适合于使用第二种,所以我开发的较完善。在这里公布源码供大家参考使用!
开发者:Gailzhao
EMail:gailzhao@sohu.com
说明,在窗口,添加一个按钮,名称为Btn,我只写代码部分(我的数据中是日期对应的两种数据,如下表)
在EXCEL文档中生成如下数据(部分),在数据右侧根据数据生成图表
基金净值指数图表
日期 开放式基金 偏股型基金 2008-1-2 4236.9944 5158.0456 2008-1-3 4246.8861 5172.5288 2008-1-4 4277.9334 5214.2867 2008-1-7 4325.5252 5276.8432 2008-1-8 4306.3272 5252.3962 添加以下引用:
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;
/***以下是设置标题***** m_Book.ActiveChart.HasTitle=true; m_Book.ActiveChart.ChartTitle.Text = "净值指数"; m_Book.ActiveChart.ChartTitle.Shadow = true; m_Book.ActiveChart.ChartTitle.Border.LineStyle = Excel.XlLineStyle.xlContinuous; */ 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; }
本文来自CSDN博客,转载请标明出处:http://blog.csdn.net/gailzhao/archive/2008/09/19/2950227.aspx
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