Eclipse SWT 文件选择

点击按钮 跳出文件选择框，代码如下

		Button NP_btn_Browse = new Button(shlNewProjectWizard, SWT.CENTER);
		NP_btn_Browse.addSelectionListener(new SelectionAdapter() {
			@Override
			public void widgetSelected(SelectionEvent e) {
				   FileDialog dlg =new FileDialog(shlNewProjectWizard,SWT.OPEN);
				   dlg.setText("Open");  
				// dlg.setFilterNames(new String[]{"图片文件(*.jpg)","图片文件（*.gif）"});   
				// dlg.setFilterExtensions(new String[]{"*.jpg", "*.gif","*.png"}); 
				   filename = dlg.open();
				   NP_text_Path.setText(filename);
			}
		});