HarmonyOS 关于菜单（Menu）组件，如何控制当条件不满足时点击按钮不显示菜单？

class classComponent{  
  content:string='';  
  labelInfo:string='';  
}  
@Entry  
@Component  
struct menu{  
  @State list1:Array<classComponent> = [  
    {content:'复制',labelInfo: "Ctrl+C"},  
    { content: "粘贴", labelInfo: "Ctrl+V" }  
  ]  
  @Builder  
  MyMenu(){  
    Menu(){  
      ForEach(this.list1,(item:classComponent)=>{  
        MenuItem({ content: `${item.content}`, labelInfo: `${item.labelInfo}` })  
      })  
    }  
  }  
  build(){  
    Column(){  
      Button('点击')  
      Button('删除菜单').onClick(()=>{  
        this.list1 = []  
      })  
    }.width('100%').padding(20).bindMenu(this.MyMenu).alignItems(HorizontalAlign.Start)  
  }  
}

class classComponent {  
  content: string = '';  
  labelInfo: string = '';  
}  
  
@Entry  
@Component  
struct TestMenuPage {  
  @State list1: Array<classComponent> = [  
    { content: '复制', labelInfo: "Ctrl+C" },  
    { content: "粘贴", labelInfo: "Ctrl+V" }  
  ];  
  @State menuIsShow:boolean = false;  
  @State menuBackGroundColor:Color = Color.White;  
  @State menuIsDelete:boolean = false;  
  
  @Builder  
  MyMenu() {  
    Menu() {  
      ForEach(this.list1, (item: classComponent) => {  
        MenuItem({ content: `${item.content}`, labelInfo: `${item.labelInfo}` })  
      })  
    }.visibility(this.menuIsDelete? Visibility.None:Visibility.Visible)  
  }  
  
  build() {  
    Column() {  
      Column() {  
        Button('点击')  
          .onClick(()=>{  
            this.menuIsShow = !this.menuIsShow;  
          })  
        Button('删除菜单').onClick(() => {  
          this.list1 = []  
          this.menuIsDelete = true  
        })  
      }  
      .width('100%')  
      .padding(20)  
      // .bindMenu(this.MyMenu)  
      .bindContextMenu(this.menuIsShow,this.MyMenu(),{  
        // backgroundColor:this.menuIsDelete?Color.Transparent:Color.White,  
        backgroundColor:Color.White,  
        backgroundBlurStyle:BlurStyle.NONE  
      })  
      .alignItems(HorizontalAlign.Start)  
    }  
    .height('100%')  
    .backgroundColor(Color.Red)  
  }  
}