从现有按钮创建按钮数组(集合)

您可以使用与任何其他数组相同的方法来执行此操作。例如:

Button[] array = { firstButton, secondButton };

或者,如果您需要在一个地方申报并稍后分配:

Button[] array;
...
array = new Button[] { firstButton, secondButton };

在C 3+中,可以对数组初始值设定项使用隐式类型:

Button[] array;
...
array = new[] { firstButton, secondButton };

您也可以考虑使用 List<Button> 相反:

List<Button> buttons = new List<Button> { firstButton, secondButton };

快去营救!!

Button[] buttons = this.Controls.OfType<Button>().ToArray();

var myButtonArray = new [] {this.Button1, this.Button2, ...}

若要简化此过程(如果有许多按钮),可以在表单级别尝试此代码:

this.Controls.OfType<Button>().ToArray();

您可以在控件集合中具有非空控件集合本身的任何控件中重复此操作。

比如:

var myButtonArray = new[] {btn1, btn2, btn3, btn4};

表单的Controls属性中包含所有控件,因此必须迭代该集合并将其添加到数组中。

List<Button> buttons = new List<Button>();

foreach(Control c in this.Controls)
{
    Button b = c as Button;
    if(b != null)
    {
        buttons.Add(b);
    }
}

如果您使用的是C 7.0或更高版本,您可以使用 is 关键字,用于在循环遍历每个控件时检查它们是否为按钮。

List<Button> buttons = new List<Button>();//CREATE LIST FOR BUTTONS

//LOOP THROUGH EACH CONTROL ON FORM
foreach (Control c in Controls)
{
    //IF THE CONTROL IS A BUTTON ADD IT TO THE LIST
    if (c is Button b)
    {
        buttons.Add(b);
    }
}

有关C的旧版本,请参阅@ Edgar Hernandez 的 answer

假设存在命名约定…

List<Button> asdf = new List<Button>();
for (int x = 0; x <= 10; x++) {
    asdf.Add(myButton + x);
}

In response to your requirements : ( Edit: Can I set the array to have a generic OnClick event? And then determine which button in the array was clicked and, say, change its color? )

List<Button> buttons = new List<Button> { firstButton, secondButton };

// Iterate through the collection of Controls, or you can use your List of buttons above.
foreach (Control button in this.Controls)
{
    if (button.GetType() == typeof(Button)) // Check if the control is a Button.
    {
        Button btn = (Button)button; // Cast the control to Button.
        btn.Click += new System.EventHandler(this.button_Click); // Add event to button.
    }
}

// Click event for all Buttons control.
private void button_Click(Button sender, EventArgs e) 
{
    ChangeForeColor(sender); // A method that accepts a Button
    // other methods to do...
    // you can also check here what button is being clicked 
    // and what action to do for that particular button.
    // Ex:
    //
    // switch(sender.Name)
    // {
    //     case "firstButton":
    //         sender.ForeColor = Color.Blue;
    //         break;
    //     case "secondButton ":
    //         sender.Text = "I'm Button 2";
    //         break;
    // }
}

// Changes the ForeColor of the Button being passed.
private void ChangeForeColor(Button btn)
{
    btn.ForeColor = Color.Red;
}