c#在Excel指定单元格中插入图片

/// 将图片插入到指定的单元格位置，并设置图片的宽度和高度。
/// 注意：图片必须是绝对物理路径
/// </summary>
/// <param name="RangeName">单元格名称，例如：B4</param>
/// <param name="PicturePath">要插入图片的绝对路径。</param>
public void InsertPicture(string RangeName, Excel._Worksheet sheet, string PicturePath)
{
 Excel.Range rng = (Excel.Range)sheet.get_Range(RangeName, Type.Missing);
rng.Select();
float PicLeft, PicTop, PicWidth, PicHeight;//距离左边距离，顶部距离，图片宽度、高度
PicTop = Convert.ToSingle(rng.Top) ;
PicWidth = Convert.ToSingle(rng.MergeArea.Width);
PicHeight = Convert.ToSingle(rng.Height);
PicWidth = Convert.ToSingle(rng.Width);
PicLeft = Convert.ToSingle(rng.Left);//+ (Convert.ToSingle(rng.MergeArea.Width) - PicWidth) / 2;
try
{
Excel.Pictures pics = (Excel.Pictures)sheet.Pictures(Type.Missing);
pics.Insert(PicturePath, Type.Missing);
pics.Left = (double)rng.Left;
pics.Top = (double)rng.Top;
pics.Width = (double)rng.Width;
pics.Height = (double)rng.Height;

}
catch
{
}
//sheet.Shapes.AddPicture(PicturePath, Microsoft.Office.Core.MsoTriState.msoFalse,
// Microsoft.Office.Core.MsoTriState.msoTrue, PicLeft, PicTop, PicWidth, PicHeight);
}

如果是要在某个区域插入，改区域没有命名的话，直接传入选中区域

Cell1 = SourceSheet.Cells[第几行, 第几列];
Cell2 = SourceSheet.Cells[Row , Column];

SourceRange = SourceSheet.get_Range(Cell1, Cell2);

然后把上面的这句去掉 Excel.Range rng = (Excel.Range)sheet.get_Range(RangeName, Type.Missing);

把rng换成SourceRange

方法二：

sheet.Shapes.AddPicture（。。。。。）

/// 将图片插入到指定的单元格位置，并设置图片的宽度和高度。
/// 注意：图片必须是绝对物理路径
/// </summary>
/// <param name="rng">Excel单元格选中的区域</param>
/// <param name="PicturePath">要插入图片的绝对路径。</param>
public void InsertPicture(Excel.Range rng, Excel._Worksheet sheet, string PicturePath)
{
rng.Select();
float PicLeft, PicTop, PicWidth, PicHeight;
try
{
PicLeft = Convert.ToSingle(rng.Left);
PicTop = Convert.ToSingle(rng.Top);
PicWidth = Convert.ToSingle(rng.Width);
PicHeight = Convert.ToSingle(rng.Height);

//参数含义：
      //图片路径
      //是否链接到文件
      //图片插入时是否随文档一起保存
      //图片在文档中的坐标位置 坐标
      //图片显示的宽度和高度
sheet.Shapes.AddPicture(PicturePath, Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoTrue, PicLeft, PicTop, PicWidth, PicHeight);

}
catch(Exception ex)
{
MessageBox.Show("错误：" + ex.Message);
}
}