我們如何在SAPUI5中爲按鈕創建或設置動態「ID」？

Question

這是我的代碼，它不工作。

var that = this; 
otable.bindItems("/", new sap.m.ColumnListItem({ 
    cells: [new sap.m.Button({ 
     text: "Hello", 
     id: "buttonid", 
     press: [that.handleButtonPress, this] 
    })] 
})); 
otable.setModel("data"); 

handleButtonPress: function() { 
    var Button_ = this.getView().byId("buttonid"); 
} 

如何設置動態ID？

Answer 1

Id是Button構造函數的第一個參數。

var oButton = new sap.m.Button("id", { 
    text: "myButton" 
}); 

Answer 2

如果您沒有提供id爲Control的構造函數，則會自動生成一個id。然後，您可以使用事件參數訪問按下的按鈕：

var that = this; 
otable.bindItems("/", new sap.m.ColumnListItem({ 
    cells: [new sap.m.Button({ 
     text: "Hello", 
     press: [that.handleButtonPress, this] 
    })] 
})); 
otable.setModel("data"); 

handleButtonPress: function (oEvent) { 
    var Button_ = oEvent.getSource(); 
} 

Answer 3

要創建一個動態的ID，你將不得不在你的聚集結合使用factory function：

oTable.bindItems("/", function(sId, oContext) { 
    return new sap.m.ColumnListItem({ 
     cells: [ 
     new sap.m.Button("yourDynamicID", { 
      text: "Hello", 
      press: [that.handleButtonPress, this] 
     }) 
     ] 
    }; 
});