如何将ondragstart =“drag（event）”添加到动态创建的元素（img div）？

Question

示例：

动态创建的图片：

var newImg = document.createElement('img');
newImg.setAttribute('id', newimage);

如何为此图像提供属性“ondragstart =”drag（event）“”？

感谢。

Answer 1

使用addEventListener添加活动

public override void PrepareForSegue(NSStoryboardSegue segue, NSObject sender)
{
    base.PrepareForSegue(segue, sender);

    switch (segue.Identifier)
    {
        case "UserLoginSegue":
            UserLoginController loginSheet = segue.DestinationController as UserLoginController;
            var theView = loginSheet.View;
            loginSheet.Username = "";
            loginSheet.Password = "";
            loginSheet.Presentor = this;
            loginSheet.DialogAccepted += (object s, EventArgs e) => { Console.WriteLine("OK Clicked"); };
            loginSheet.DialogCanceled += (object s, EventArgs e) => { Console.WriteLine("Cancel Clicked"); };
            break;
    }
}

所以你的代码将是

target.addEventListener(type, listener)

该活动将通过。