Adding images into Excel using EPPlus

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梦如初夏
梦如初夏 2020-11-27 07:07

I am trying to add the same image multiple times into an excel file using EPPlus. I am using the following code to do so:

Image logo = Image.FromFile(path);
         


        
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6条回答
  • 2020-11-27 07:34

    Add the following right before you save the document:

    foreach (ExcelPicture drawing in ws.Drawings)
       drawing.SetSize(100);
    
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  • 2020-11-27 07:38

    I'm not sure if this is the best solution but definetly a workaround for your problem.

    Here's what I did:

    ExcelPackage package = new ExcelPackage();
    var ws = package.Workbook.Worksheets.Add("Test Page");
    
    for (int a = 0; a < 5; a++)
    {
        ws.Row(a * 5).Height = 39.00D;
    }
    
    for (int a = 0; a < 5; a++)
    {
        var picture = ws.Drawings.AddPicture(a.ToString(), logo);
        picture.SetPosition(a * 5, 0, 2, 0);
    }
    

    Here is how it looks.

    enter image description here

    For some reason when we have the row height set, its interfering with the picture height.

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  • 2020-11-27 07:41

    This is one solution that you can apply in C#.

    private void AddImage(ExcelWorksheet oSheet, int rowIndex, int colIndex, string imagePath)
    {
        Bitmap image = new Bitmap(imagePath);
        ExcelPicture excelImage = null;
        if (image != null)
        {
            excelImage = oSheet.Drawings.AddPicture("Debopam Pal", image);
            excelImage.From.Column = colIndex;
            excelImage.From.Row = rowIndex;
            excelImage.SetSize(100, 100);
            // 2x2 px space for better alignment
            excelImage.From.ColumnOff = Pixel2MTU(2);
            excelImage.From.RowOff = Pixel2MTU(2);
        }
    }
    
    public int Pixel2MTU(int pixels)
    {
        int mtus = pixels * 9525;
        return mtus;
    }
    
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  • 2020-11-27 07:41

    use the below code to adjust the image in an excel cell:

            Image logo = Image.FromFile(path);
            ExcelPackage package = new ExcelPackage(info);
            var ws = package.Workbook.Worksheets.Add("Test Page");
            for(int a = 0; a < 5; a++)
            {
               ws.Row(a*5).Height = 39.00D;
               var picture = ws.Drawings.AddPicture(a.ToString(), logo);
               picture.From.Column = 0;
               picture.From.Row = a;
               picture.To.Column=0;//end cell value
               picture.To.Row=a;//end cell value
               picture.SetSize(120, 150);
            }
    
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  • 2020-11-27 07:52

    try this

    Image logo = Image.FromFile(path);
    ExcelPackage package = new ExcelPackage(info);
    var ws = package.Workbook.Worksheets.Add("Test Page");
    for(int a = 0; a < 5; a++)
    {
        ws.Row(a*5).Height = 39.00D;
        var picture = ws.Drawings.AddPicture(a.ToString(), logo);
        // xlMove disables the auto resizing
        picture.Placement = xlMove; //XLPlacement : xlMoveAndSize,xlMove,xlFreeFloating
        picture.SetPosition(a*5, 0, 2, 0);
    }
    

    or

    Image logo = Image.FromFile(path);
    ExcelPackage package = new ExcelPackage(info);
    var ws = package.Workbook.Worksheets.Add("Test Page");
    for(int a = 0; a < 5; a++)
    {
        ws.Row(a*5).Height = 39.00D;
        var picture = ws.Drawings.AddPicture(a.ToString(), logo);
        picture.From.Column = 0;
        picture.From.Row = a;
        picture.SetSize(120, 150);
    }
    
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  • 2020-11-27 07:59

    when you are passing say example 39 as pixel it will take it as point insted of pixel internally, so you think that you are going to set row's height to 39 pixel but actually it is setting row's height to 39 point. so according to following formula your row height will became 52 pixel.

    If you want to set row's height to 39px, mean you have to pass 29.25 Point(according to formula) insted of 39.

    points = pixels * 72 / 96
    

    Try this one.

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