private void AddBugChart(
ExcelInterop.Worksheet sheet,
int chartStartRow, string chartStartCol, int chartEndRow, string chartEndCol,
string bugDataSource, string chartTitle)
{
ExcelInterop.Range bugChartRange = sheet.Range[sheet.Cells[chartStartRow, chartStartCol], sheet.Cells[chartEndRow, chartEndCol]];
ExcelInterop.ChartObjects charts = sheet.ChartObjects(Type.Missing) as ExcelInterop.ChartObjects;
Utility.AddNativieResource(charts);
ExcelInterop.ChartObject bugChartObject = charts.Add(0, 0, bugChartRange.Width, bugChartRange.Height);
Utility.AddNativieResource(bugChartObject);
ExcelInterop.Chart bugChart = bugChartObject.Chart;//设置图表数据区域。
Utility.AddNativieResource(bugChart);
ExcelInterop.Range datasource = sheet.get_Range(bugDataSource);//不是："B14:B25","F14:F25"
Utility.AddNativieResource(datasource);
bugChart.SetSourceData(datasource);
bugChart.ChartType = ExcelInterop.XlChartType.xlColumnClustered;
//bugChart.ChartWizard(datasource, XlChartType.xlColumnClustered, Type.Missing, XlRowCol.xlColumns, 1, 1, false, chartTitle, "", "", Type.Missing);
bugChart.ApplyDataLabels();//图形上面显示具体的值
//将图表移到数据区域之下。
bugChartObject.Left = Convert.ToDouble(bugChartRange.Left) + 20;
bugChartObject.Top = Convert.ToDouble(bugChartRange.Top) + 20;
bugChartObject.Locked = false;
bugChartObject.Select();
bugChartObject.Activate();
}
/// <summary>
/// 导出excel中的chart对象到word中
/// </summary>
/// <param name="cht">excel中的chart对象</param>
/// <param name="range">此时word文档中的全局range的位置或者范围</param>
/// <remarks>由局部安全的原则，在进行绘图前，将另起一行，并将段落样式设置为“图片”样式</remarks>
private void Export_ExcelChart(Chart cht, ref Word.Range range)
{
cht.Application.ScreenUpdating = false;
try
{
// 下面复制Chart的操作中，如果监测曲线图所使用的Chart模板有问题，则可能会出错。
Excel.ChartObject chtObj = cht.Parent as Excel.ChartObject;
chtObj.Activate();
chtObj.Copy(); // 或者用 cht.ChartArea.Copy()都可以。
}
catch (Exception ex)
{
MessageBox.Show(
"导出监测曲线图\"" + cht.Application.Caption.ToString() + "\"出错（请检查是否是用户使用的Chart模板有问题），跳过此图的导出。" +
"\r\n" + ex.Message + "\r\n" + "报错位置：" +
ex.TargetSite.Name, "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
//刷新excel屏幕
cht.Application.ScreenUpdating = true;
return;
}
//设置word.range的格式
Word.Range with_1 = range;
//新起一行，并设置新段落的段落样式为图片
NewLine(range, ParagraphStyle.picture);
//进行粘贴，下面也可以用：DataType:=23
with_1.PasteSpecial(DataType: Word.WdPasteDataType.wdPasteOLEObject, Placement: Word.WdOLEPlacement.wdInLine);
Word.InlineShape shp = default(Word.InlineShape);
range.Select();
range.Application.Selection.MoveLeft(Unit: Word.WdUnits.wdCharacter, Count: 1,
Extend: Word.WdMovementType.wdExtend);
shp = range.Application.Selection.InlineShapes[1];
//约束图形的宽度，将其限制在word页面的正文宽度之内
WidthRestrain(shp, ContentWidth);
//刷新excel屏幕
cht.Application.ScreenUpdating = true;
}
public void ExportChartsAsOneImage(string item, string imageFile, int imagesPerRow, int splitBoardWidth,
Color splitBoarderColor)
{
try
{
if (string.IsNullOrEmpty(item) || string.IsNullOrEmpty(imageFile))
{
throw new ArgumentNullException($"The parameter item or imageFile is null");
}
Excel.Worksheet xlWorkSheet = (Excel.Worksheet)_xlWorkBook.Worksheets.Item[item];
Excel.ChartObjects xlCharts = (Excel.ChartObjects)xlWorkSheet.ChartObjects(Type.Missing);
IList <string> chartFiles = new List <string>();
string folder = Path.GetDirectoryName(imageFile);
if (folder == null)
{
throw new ArgumentNullException($"Image file should be specified the full path");
}
string format = Path.GetExtension(imageFile).TrimStart('.');
for (int j = 1; j <= xlCharts.Count; j++)
{
var chartFile = Path.Combine(folder, $"Temp Chart {j}.{format}");
Excel.ChartObject chart = (Excel.ChartObject)xlCharts.Item(j);
chart.Activate();
chart.Chart.Export(chartFile, format, true);
chartFiles.Add(chartFile);
TempCreatedFiles.Add(chartFile);
}
var chartImage = chartFiles.FirstOrDefault();
if (chartImage == null)
{
throw new ArgumentNullException($"No chart found");
}
var rows = (int)Math.Ceiling(chartFiles.Count / (decimal)imagesPerRow);
var imageBitmap = new Bitmap(chartImage);
var combinedImageWidth = imageBitmap.Width * imagesPerRow + (imagesPerRow - 1) * splitBoardWidth;
var combinedImageHeight = imageBitmap.Height * rows + (imagesPerRow - 1) * splitBoardWidth;
var combinedImage = new Bitmap(combinedImageWidth, combinedImageHeight);
// copy images row by row
int combinedImageY = 0;
for (int row = 0; row < rows; row++)
{
// copy images one after one in one row
for (int colomn = 0; colomn < imagesPerRow; colomn++)
{
int imageIndex = colomn + row * imagesPerRow;
var image = new Bitmap(chartFiles[imageIndex]);
var combinedImageX = (imageBitmap.Width + splitBoardWidth) * colomn;
for (int y = 0; y < image.Height; y++)
{
// copy image
for (int x = 0; x < image.Width; x++)
{
combinedImage.SetPixel(combinedImageX + x, combinedImageY + y, image.GetPixel(x, y));
}
// draw vertical boarder
for (int i = 0; i < splitBoardWidth; i++)
{
var boarderX = combinedImageX + imageBitmap.Width + i;
if (boarderX < combinedImageWidth)
{
combinedImage.SetPixel(boarderX, combinedImageY + y, splitBoarderColor);
}
}
}
}
combinedImageY += imageBitmap.Height;
// draw horizon boarder
for (int i = 0; i < splitBoardWidth; i++)
{
if (combinedImageY < combinedImageHeight)
{
for (int x = 0; x < combinedImageWidth; x++)
{
combinedImage.SetPixel(x, combinedImageY, splitBoarderColor);
}
combinedImageY++;
}
}
}
combinedImage.Save(imageFile);
}
finally
{
_xlWorkBook.Close(true, _misValue, _misValue);
}
}
