如何使用 C# 在 Excel 中添加、提取和删除图像

using IronXL;

WorkBook workBook = WorkBook.Create();
WorkSheet workSheet = workBook.DefaultWorkSheet;

// Insert images
workSheet.InsertImage("ironpdf.jpg", 2, 2, 4, 4);
workSheet.InsertImage("ironpdfIcon.png", 2, 6, 4, 8);

workBook.SaveAs("insertImages.xlsx");

Imports IronXL

Private workBook As WorkBook = WorkBook.Create()
Private workSheet As WorkSheet = workBook.DefaultWorkSheet

' Insert images
workSheet.InsertImage("ironpdf.jpg", 2, 2, 4, 4)
workSheet.InsertImage("ironpdfIcon.png", 2, 6, 4, 8)

workBook.SaveAs("insertImages.xlsx")

using IronSoftware.Drawing;
using IronXL;
using IronXL.Drawing;
using System;
using System.Collections.Generic;

WorkBook workBook = WorkBook.Load("insertImages.xlsx");
WorkSheet workSheet = workBook.DefaultWorkSheet;

// Retreive images
List<IronXL.Drawing.Images.IImage> images = workSheet.Images;

// Select each image
foreach (IronXL.Drawing.Images.IImage image in images)
{
    // Save the image
    AnyBitmap anyBitmap = image.ToAnyBitmap();
    anyBitmap.SaveAs($"{image.Id}.png");

    // Resize the image
    image.Resize(1,3);

    // Retrieve image position
    Position position = image.Position;
    Console.WriteLine("top row index: " + position.TopRowIndex);
    Console.WriteLine("bottom row index: " + position.BottomRowIndex);

    // Retrieve byte data
    byte[] imageByte = image.Data;
}

workBook.SaveAs("resizeImage.xlsx");

Imports IronSoftware.Drawing
Imports IronXL
Imports IronXL.Drawing
Imports System
Imports System.Collections.Generic

Private workBook As WorkBook = WorkBook.Load("insertImages.xlsx")
Private workSheet As WorkSheet = workBook.DefaultWorkSheet

' Retreive images
Private images As List(Of IronXL.Drawing.Images.IImage) = workSheet.Images

' Select each image
For Each image As IronXL.Drawing.Images.IImage In images
	' Save the image
	Dim anyBitmap As AnyBitmap = image.ToAnyBitmap()
	anyBitmap.SaveAs($"{image.Id}.png")

	' Resize the image
	image.Resize(1,3)

	' Retrieve image position
	Dim position As Position = image.Position
	Console.WriteLine("top row index: " & position.TopRowIndex)
	Console.WriteLine("bottom row index: " & position.BottomRowIndex)

	' Retrieve byte data
	Dim imageByte() As Byte = image.Data
Next image

workBook.SaveAs("resizeImage.xlsx")

using IronXL;

WorkBook workBook = WorkBook.Load("insertImages.xlsx");
WorkSheet workSheet = workBook.DefaultWorkSheet;

// Remove image
workSheet.RemoveImage(3);

workBook.SaveAs("removeImage.xlsx");

Imports IronXL

Private workBook As WorkBook = WorkBook.Load("insertImages.xlsx")
Private workSheet As WorkSheet = workBook.DefaultWorkSheet

' Remove image
workSheet.RemoveImage(3)

workBook.SaveAs("removeImage.xlsx")