C# 关于从datatable到excel c生成折线图的问题#
我正在使用Interop.Excel从datatable导出数据并生成折线图。我有一个代码,将数据从数据表导出到excel,并在那里创建图表,但代码在这一行给出了错误C# 关于从datatable到excel c生成折线图的问题#,c#,excel,charts,C#,Excel,Charts,我正在使用Interop.Excel从datatable导出数据并生成折线图。我有一个代码,将数据从数据表导出到excel,并在那里创建图表,但代码在这一行给出了错误 Excel.Axis yAxis = (Excel.Axis)xlChart.Axes(Excel.XlAxisType.xlSeriesAxis, Excel.XlAxisGroup.xlPrimary); 我收到的错误消息值不在预期范围内 生成折线图的完整代码 private void button1_Click(objec
Excel.Axis yAxis = (Excel.Axis)xlChart.Axes(Excel.XlAxisType.xlSeriesAxis,
Excel.XlAxisGroup.xlPrimary);
我收到的错误消息值不在预期范围内
生成折线图的完整代码
private void button1_Click(object sender, EventArgs e)
{
System.Data.DataTable dt = GetGraphData();
Excel.Application xla = new Excel.Application();
xla.Visible = true;
Excel.Workbook wb = xla.Workbooks.Add(Excel.XlSheetType.xlWorksheet);
Excel.Worksheet ws = (Excel.Worksheet)wb.ActiveSheet;
//********************** Now create the chart. *****************************
Excel.ChartObjects chartObjs = (Excel.ChartObjects)ws.ChartObjects(Type.Missing);
Excel.ChartObject chartObj = chartObjs.Add(250, 60, 300, 300);
Excel.Chart xlChart = chartObj.Chart;
int nRows = 2;
int nColumns = dt.Rows.Count;
string upperLeftCell = "B2";
int endRowNumber = System.Int32.Parse(upperLeftCell.Substring(1))
+ nRows - 1;
char endColumnLetter = System.Convert.ToChar(
Convert.ToInt32(upperLeftCell[0]) + nColumns - 1);
string upperRightCell = System.String.Format("{0}{1}",
endColumnLetter, System.Int32.Parse(upperLeftCell.Substring(1)));
string lowerRightCell = System.String.Format("{0}{1}",
endColumnLetter, endRowNumber);
Excel.Range rg = ws.get_Range(upperLeftCell, lowerRightCell);
for (int i = 1; i <= dt.Rows.Count; i++)
{
rg[1, i] = dt.Rows[i - 1][0].ToString(); //For Adding Header Text
rg[2, i] = int.Parse(dt.Rows[i - 1][1].ToString()); //For Adding Datarow Value
}
Excel.Range chartRange = ws.get_Range(upperLeftCell, lowerRightCell);
xlChart.SetSourceData(chartRange, Type.Missing);
xlChart.ChartType = Excel.XlChartType.xlLine;
// *******************Customize axes: ***********************
Excel.Axis xAxis = (Excel.Axis)xlChart.Axes(Excel.XlAxisType.xlCategory,
Excel.XlAxisGroup.xlPrimary);
//xAxis.HasTitle = true;
// xAxis.AxisTitle.Text = "X Axis";
Excel.Axis yAxis = (Excel.Axis)xlChart.Axes(Excel.XlAxisType.xlSeriesAxis,
Excel.XlAxisGroup.xlPrimary);
//yAxis.HasTitle = true;
//yAxis.AxisTitle.Text = "Y Axis";
Excel.Axis zAxis = (Excel.Axis)xlChart.Axes(Excel.XlAxisType.xlValue,
Excel.XlAxisGroup.xlPrimary);
//zAxis.HasTitle = true;
//zAxis.AxisTitle.Text = "Z Axis";
// *********************Add title: *******************************
xlChart.HasTitle = true;
xlChart.ChartTitle.Text = "Project Status Graph";
// *****************Set legend:***************************
xlChart.HasLegend = true;
FileStream file = new FileStream(@"c:\pop.xls", FileMode.Create);
file.Close();
wb.SaveCopyAs(@"c:\pop.xls");
// ****************For Quiting The Excel Aplication ***********************
if (xla != null)
{
xla.DisplayAlerts = false;
wb.Close();
wb = null;
xla.Quit();
xla = null;
}
}
private System.Data.DataTable GetGraphData()
{
System.Data.DataTable dt = new System.Data.DataTable();
dt.Columns.AddRange(new DataColumn[2] { new DataColumn("ProjectStatus"), new DataColumn("per") });
DataRow dr1 = dt.NewRow();
dr1[0] = "Compleet";
dr1[1] = 20;
dt.Rows.Add(dr1);
DataRow dr2 = dt.NewRow();
dr2[0] = "Pending";
dr2[1] = 20;
dt.Rows.Add(dr2);
DataRow dr3 = dt.NewRow();
dr3[0] = "UnCompleet";
dr3[1] = 20;
dt.Rows.Add(dr3);
return dt;
}
private void按钮1\u单击(对象发送者,事件参数e)
{
System.Data.DataTable dt=GetGraphData();
应用程序XLA=新Excel应用程序();
XL.可见=真;
Excel工作簿WB= XLA.工作簿.Addio(Excel .xLSEETType .xLWorkTabl);
Excel.Worksheet ws=(Excel.Worksheet)wb.ActiveSheet;
//**********************现在创建图表*****************************
Excel.ChartObjects chartObjs=(Excel.ChartObjects)ws.ChartObjects(Type.Missing);
Excel.ChartObject chartObj=chartObjs.Add(250,60,300,300);
Excel.Chart xlChart=chartObj.Chart;
int nRows=2;
int nColumns=dt.Rows.Count;
字符串upperLeftCell=“B2”;
int endRowNumber=System.Int32.Parse(upperLeftCell.Substring(1))
+nRows-1;
char endColumnLetter=System.Convert.ToChar(
转换为32(upperLeftCell[0])+n列-1;
string upperRightCell=System.string.Format(“{0}{1}”,
endColumnLetter,System.Int32.Parse(upperLeftCell.Substring(1));
string lowerRightCell=System.string.Format(“{0}{1}”,
endColumnLetter,endRowNumber);
Excel.Range rg=ws.get_Range(upperLeftCell,lowerRightCell);
对于(int i=1;i我的同事告诉我,根据intellisense,第一个参数(Excel.XlAxisType.xlSeriesAxis)的值仅对3D图表有效
您正在创建什么类型的图表?我的同事告诉我,根据intellisense,第一个参数(Excel.XlAxisType.xlSeriesAxis)的值仅对3D图表有效
您正在创建什么样的图表?是的,我注释了这些行,现在这一行给出了错误wb.SaveCopyAs(@“c:\pop.xls”);任何想法。是的,我注释了这些行,现在这一行给出了错误wb.SaveCopyAs(@“c:\pop.xls”);任何想法。