function openDialog() {     var options = {         html: userStoryDetails,         width: 600,         height: 300,         title: "User Story",        options.dialogReturnValueCallback = Function.createDelegate(null,portal_modalDialogClosedCallback); 　　//回调函数　　　     };    SP.UI.ModalDialog.showModalDialog(options);}

 

sharepoint打开对话框调用SP.UI.ModalDialog.showModalDialog()方法，关闭对话框调用

SP.UI.ModalDialog.commonModalDialogClose(SP.UI.DialogResult.OK, '点了确定')

function CloseCallback(result, value) {         if(result === SP.UI.DialogResult.OK) {             alert("OK was clicked!");         }         if(result === SP.UI.DialogResult.cancel) {             alert("Cancel was clicked!");                 }  }

 msdn例子：