我正在使用PictureBox控件创建游戏,并添加MouseDown事件以处理减少PictureBox的“健康”值的情况。
我想以编程方式在初始控件失去所有健康状态时添加一个新控件,以便为新PictureBox的显示方式添加差异,但是我不知道如何向以编程方式创建的控件添加事件处理程序
更新:感谢您的帮助! 如果您想这样做,这就是我完成的代码的工作方式。
Public Class Form1
Private Sub NewBug()
Dim pbBug As New PictureBox With {
.Name = "pb",
.Width = 100,
.Height = 100,
.Top = 75,
.Left = 75,
.SizeMode = PictureBoxSizeMode.Zoom,
.Image = My.Resources.bug}
Me.Controls.Add(pbBug)
AddHandler pbBug.MouseDown, Sub(sender As Object, e As EventArgs)
MessageBox.Show("Hello", "It Worked")
End Sub
End Sub
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
NewBug()
End Sub
谢谢, sunnyCr
答案 0 :(得分:0)
某些事情加起来没有。似乎Dim MyButton As New Button()
应该在类范围内声明,而不必在局部变量上声明WithEvents。此外,如果MyButton在本地以加载例程,则MyButton_Click
子程序将不会编译。如果在类作用域中声明了它,那么您可以Dim MyButton As New Button
来代替WithEvents MyButton As New Button
,如果您想将其保留在本地,则可以执行以下操作
Dim MyButton As New Button With {
.Name = "MyButton",
.Top = 100,
.Left = 100,
.Image = My.Resources.SomeImage}
Controls.Add(MyButton)
AddHandler MyButton.Click, Sub(s As Object, ev As EventArgs)
'Do stuff
End Sub
通常这就是我的工作方式,除非我打算删除处理程序,否则我将创建一个Sub并使用AddressOf,例如您尝试使用它的方式。
答案 1 :(得分:0)
必须通过代码导入windows.system.Forms创建一个类来生成图片框;例如,您可以执行此操作,更改图片框的标签:
这是课程:
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace WindowsFormsApp1
{
class Etiqueta
{
private Label etiquetaHija;
public Label EtiquetaHija { get => etiquetaHija; set => etiquetaHija = value; }
public Etiqueta(Point posicion, Size dimensiones, string texto)
{
etiquetaHija = new Label();
etiquetaHija.Size = dimensiones;
etiquetaHija.Location = posicion;
etiquetaHija.Text = texto;
etiquetaHija.Click += EtiquetaHija_Click;
}
private void EtiquetaHija_Click(object sender, EventArgs e)
{
MessageBox.Show("Etiqueta Hija");
}
}
这是表单背后的代码:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace WindowsFormsApp1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
Etiqueta etiqueta = new Etiqueta(new Point(20, 20), new Size(100, 100), "Ejemplo de creacion de un label por codigo con manejador de eventos");
this.Controls.Add(etiqueta.EtiquetaHija );
}
}
}