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imagelist ImageStream c# example [ Add Image to Base64 Encoded ImageStream in Resources (resx) ] 資料來源: https://stackoverflow.com/questions/3039105/add-image-to-base64-encoded-imagestream-in-resources-resx 錯誤類型 ‘System.Reflection.TargetInvocationException’ 的未處理例外狀況發生於 mscorlib.dll this.imageList1.ImageStream = ((System.Windows.Forms.ImageListStreamer)(resources.GetObject(“imageList1.ImageStream”))); 解決方法: ▲Create another form. ▲Add an ImageList component. ▲Add an arbitrary image in order to generate an “imagestream”. ▲Open old resx and copy the “value” element. ▲Open new resx and paste value element. ▲Open new form. ▲Add images as needed. ▲Save new form. ▲Open new form’s resx file. ▲Copy value element. ▲Open old form’s resx file. ▲Paste in new value element.