带有附加参数的 C# 按钮单击

如何解决带有附加参数的 C# 按钮单击

我想通过单击按钮来执行某些操作。但为此我需要一个额外的参数“string[] args”。

class Video extends Model
{
    public function categories(): BelongsToMany
    {
        return $this->belongsToMany(Category::class,CategoryVideo::class,'video_id','category_id');
    }
}


DB::beginTransaction();
$video = Video::find($id);
$video->update($data);
// update categorie count
$items = $video->categories()->get(['category_id','video_count']);
foreach ($items as $item){
      $item->video_count = Category::where('category_id',$item->category_id)->count();
      $item->save();
      //$item->update(['video_count' => Category::where('category_id',$item->category_id)->count()]);
}
DB::commit();

如果我使用这个参数，我会收到一个错误，因为我必须在 EventHandler 中以某种方式指定它，但我不知道该怎么做？

private void button1_Click(object sender,EventArgs e,string[] args)

有人可以向我解释我必须如何在这里进行吗？

解决方法

在 form.designer.cs 中使用此代码

private void InitializeComponent()
{
  string[] args = new string[] { "param1","param2" };
  MyButton myButton = new MyButton(args);
  this.SuspendLayout();
  // 
  //myButton
  // 
  myButton.Location = new System.Drawing.Point(230,121);
  myButton.Name = "myButton";
  myButton.Size = new System.Drawing.Size(175,31);
  myButton.TabIndex = 0;
  myButton.Text = "Test Click";
  myButton.UseVisualStyleBackColor = true;
  myButton.ButtonClick += MyButton_ButtonClick;


  // 
  // Form1
  // 
  this.AutoScaleDimensions = new System.Drawing.SizeF(6F,13F);
  this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
  this.ClientSize = new System.Drawing.Size(800,450);
  this.Controls.Add(myButton);
  this.Name = "Form1";
  this.Text = "Form1";
  this.ResumeLayout(false);
}
private void MyButton_ButtonClick(object Sender,System.EventArgs e,string[] args)
{
   //do works.......
   MyButton btn = Sender as MyButton;
   MessageBox.Show(args[0] + " -- " + args[1] + " -- " + btn.Name);       
}

并添加这个类

public class MyButton : Button
{
   public event ClickEventHandler ButtonClick;
   public delegate void ClickEventHandler(object Sender,EventArgs e,string[] args);
   private string[] _args;
   public MyButton(string[] args)
   {
      _args = args;
   } 

   protected override void OnClick(EventArgs e)
   {
      if (ButtonClick != null)
      {
          ButtonClick(this,e,_args);
      }
   }
}

此代码完美运行。