this.toolStrip1 = new System.Windows.Forms.ToolStrip();
this.toolStrip1.Location = new System.Drawing.Point(0, 0);
this.toolStrip1.Name = "toolStrip1";
this.toolStrip1.Size = new System.Drawing.Size(444, 25);
this.toolStrip1.TabIndex = 0;
this.toolStrip1.Text = "toolStrip1";
object O = global::WindowsFormsApplication1.Properties.Resources.ResourceManager.GetObject("best_robust_ghost");

ToolStripButton btn = new ToolStripButton("m1");
btn.DisplayStyle = ToolStripItemDisplayStyle.Image;
btn.Image = (Image)O;
this.toolStrip1.Items.Add(btn);

比大多数提议的答案简单多了

tslMode.Image = global::ProjectName.Properties.Resources.ImageName;

最好的方法是将它们作为图像资源添加到项目的资源设置中。然后可以通过执行Resources.myimage直接获取映像。这将通过一个生成的c#属性获取图像。

如果你只是将图像设置为嵌入式资源，你可以通过:

string name = "Resources.myimage.jpg"
string namespaceName = "MyCompany.MyNamespace";
string resource = namespaceName + "." + name;
Type type = typeof(MyCompany.MyNamespace.MyTypeFromSameAssemblyAsResource);
Bitmap image = new Bitmap(type.Assembly.GetManifestResourceStream(resource));

其中mytypefrommsameassemblyasresource是程序集中的任何类型。

我在我的几个项目中使用的代码… 它假设您在资源中存储的图像仅为位图，而不是图标

    public static Bitmap GetImageByName(string imageName)
    {
        System.Reflection.Assembly asm = System.Reflection.Assembly.GetExecutingAssembly();
        string resourceName = asm.GetName().Name + ".Properties.Resources";
        var rm = new System.Resources.ResourceManager(resourceName, asm);
        return (Bitmap)rm.GetObject(imageName);

    }

这是我如何从一个windows窗体应用程序的资源(.rc)文件创建一个ImageList:

ImageList imgList = new ImageList（）;

        var resourceSet = DataBaseIcons.ResourceManager.GetResourceSet(CultureInfo.CreateSpecificCulture("en-EN"), true, true);

        foreach (var r in resourceSet)
        {
            Logger.LogDebug($"Resource Type {((DictionaryEntry)r).Key.ToString()} is of {((DictionaryEntry)r).Value.GetType()}");
            
            if (((DictionaryEntry)r).Value is Bitmap)
            {
                imgList.Images.Add(((Bitmap)(((DictionaryEntry)r).Value)));
            }
            else
            {
                Logger.LogWarning($"Resource Type {((DictionaryEntry)r).Key.ToString()} is of type {((DictionaryEntry)r).Value.GetType()}");
            }
        }

你也可以像这样在var中保存bmp:

var bmp = Resources.ImageName;

希望能有所帮助!