Shape

ImageFieldMergingArgs.Shape property

Specifies the shape that the mail merge engine must insert into the document.

public Shape Shape { get; set; }

Remarks

When this property is specified, the mail merge engine ignores all other properties like ImageFileName or ImageStream and simply inserts the shape into the document.

Use this property to fully control the process of merging an image merge field. For example, you can specify WrapType or any other shape property to fine tune the resulting node. However, please note that you are responsible for providing the content of the shape.

Examples

Shows how to set the dimensions of images as MERGEFIELDS accepts them during a mail merge.

public void MergeFieldImageDimension()
{
    Document doc = new Document();

    // Insert a MERGEFIELD that will accept images from a source during a mail merge. Use the field code to reference
    // a column in the data source containing local system filenames of images we wish to use in the mail merge.
    DocumentBuilder builder = new DocumentBuilder(doc);
    FieldMergeField field = (FieldMergeField)builder.InsertField("MERGEFIELD Image:ImageColumn");

    // The data source should have such a column named "ImageColumn".
    Assert.AreEqual("Image:ImageColumn", field.FieldName);

    // Create a suitable data source.
    DataTable dataTable = new DataTable("Images");
    dataTable.Columns.Add(new DataColumn("ImageColumn"));
    dataTable.Rows.Add(ImageDir + "Logo.jpg");
    dataTable.Rows.Add(ImageDir + "Transparent background logo.png");
    dataTable.Rows.Add(ImageDir + "Enhanced Windows MetaFile.emf");

    // Configure a callback to modify the sizes of images at merge time, then execute the mail merge.
    doc.MailMerge.FieldMergingCallback = new MergedImageResizer(200, 200, MergeFieldImageDimensionUnit.Point);
    doc.MailMerge.Execute(dataTable);

    doc.UpdateFields();
    doc.Save(ArtifactsDir + "Field.MERGEFIELD.ImageDimension.docx");
}

/// <summary>
/// Sets the size of all mail merged images to one defined width and height.
/// </summary>
private class MergedImageResizer : IFieldMergingCallback
{
    public MergedImageResizer(double imageWidth, double imageHeight, MergeFieldImageDimensionUnit unit)
    {
        mImageWidth = imageWidth;
        mImageHeight = imageHeight;
        mUnit = unit;
    }

    public void FieldMerging(FieldMergingArgs e)
    {
        throw new NotImplementedException();
    }

    public void ImageFieldMerging(ImageFieldMergingArgs args)
    {
        args.ImageFileName = args.FieldValue.ToString();
        args.ImageWidth = new MergeFieldImageDimension(mImageWidth, mUnit);
        args.ImageHeight = new MergeFieldImageDimension(mImageHeight, mUnit);

        Assert.AreEqual(mImageWidth, args.ImageWidth.Value);
        Assert.AreEqual(mUnit, args.ImageWidth.Unit);
        Assert.AreEqual(mImageHeight, args.ImageHeight.Value);
        Assert.AreEqual(mUnit, args.ImageHeight.Unit);
        Assert.Null(args.Shape);
    }

    private readonly double mImageWidth;
    private readonly double mImageHeight;
    private readonly MergeFieldImageDimensionUnit mUnit;
}

See Also

ImageFieldMergingArgs.ImageWidth