Setting the Source property on Image does not block running thread till download completes so code will continue executing and your progress bar will be invisible immediately.
设置源房产的形象呢不块运行的线程直到下载完成，代码将继续执行，你将进度条看不见的立即。
Setting goals is the first step in turning the invisible into the visible. Stay committed to your decisions, but stay flexible in your approach.
设定目标是让无形愿望成为有形成果的第一步，坚持你的决定，但在方法上保持弹性。
Setting goals is the first step in turning the invisible into the visible. Stay committed to your decisions, but stay flexible in your approach.
设定目标是让无形愿望成为有形成果的第一步，坚持你的决定，但在方法上保持弹性。
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