C# 从动态创建的按钮中显示/隐藏动态创建的按钮
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【中文标题】C# 从动态创建的按钮中显示/隐藏动态创建的按钮【英文标题】：C# show/hide dynamic created button from dynamic created button 【发布时间】：2018-02-28 22:22:42 【问题描述】：我有一个简单的 C# Windows 窗体应用程序，我在其中基于特定循环创建了两组按钮。第一个集合（称为contractButton）是可见的，但在它们旁边创建的下一个集合（称为infoButton）是隐藏的。我想要实现的是点击 contractButton 以将其旁边生成的相应 infoButton 的可见设置为 true。 这是我的代码，
namespace DynamicButtons
public partial class Form1 : Form
public Form1()
InitializeComponent();
private void Form1_Load(object sender, EventArgs e)
for (int i = 0; i < 3; i++) //simple loop just to simulate the request
createContractButton(); //will generate 3 contractButtons with Visible = true
createInfoButton(); //will cgenerate 3 infoButtons with Visible = false
private void createInfoButton()
Button infoButton = infoButtonCreration("infoButton");
flowLayoutPanel1.Controls.Add(infoButton);
infoButton.Click += new EventHandler(btnInfo_Click);
private void createContractButton()
Button contractButton = contractButtonCreation("contractButton");
flowLayoutPanel1.Controls.Add(contractButton);
contractButton.Click += new EventHandler(btn_Click);
Button contractButtonCreation(string contract)
Button b = new Button();
b.FlatAppearance.BorderSize = 1;
b.FlatStyle = FlatStyle.Flat;
b.Name = contract;
b.Size = new Size(150, 80);
b.Text = contract;
b.UseVisualStyleBackColor = false;
return b;
Button infoButtonCreration(string info)
Button b = new Button();
b.FlatAppearance.BorderSize = 1;
b.FlatStyle = FlatStyle.Flat;
b.Name = info;
b.Size = new Size(70, 80);
b.Text = info;
b.UseVisualStyleBackColor = false;
b.Visible = false; //this with make the button hidden
return b;
private void btn_Click(object sender, EventArgs e)
//here i need the magic, on click i need the infoButton nect to me to be visible
private void btnInfo_Click(object sender, EventArgs e)
Button b = (sender as Button);
b.Text = "name"; //simple even when button gets visible so i can test it woeks
我希望我解释了我的需求。 非常感谢你们的支持。 亲切的问候how it should look when working
【问题讨论】：
遍历控件并找到您的按钮或按住实例。 您可以只使用 1 个按钮并在单击时更改其内容，在 btn_Click() 中您检查内容文本是什么（或您设置的任何其他标志），如果它的“contractButton”然后更改它到“infoButton”，如果它的“infoButton”执行你需要的任务...... 【参考方案1】：在contractButton上添加标签，然后当你点击按钮时将标签转换为按钮。
namespace DynamicButtons
public partial class Form1 : Form
public Form1()
InitializeComponent();
private void Form1_Load(object sender, EventArgs e)
for (int i = 0; i < 3; i++) //simple loop just to simulate the request
createContractButton();
private Button createInfoButton()
Button infoButton = infoButtonCreration("infoButton");
flowLayoutPanel1.Controls.Add(infoButton);
infoButton.Click += new EventHandler(btnInfo_Click);
return infoButton;
private void createContractButton()
Button contractButton = contractButtonCreation("contractButton");
flowLayoutPanel1.Controls.Add(contractButton);
contractButton.Click += new EventHandler(btn_Click);
contractButton.Tag=createInfoButton();
Button contractButtonCreation(string contract)
Button b = new Button();
b.FlatAppearance.BorderSize = 1;
b.FlatStyle = FlatStyle.Flat;
b.Name = contract;
b.Size = new Size(150, 80);
b.Text = contract;
b.UseVisualStyleBackColor = false;
return b;
Button infoButtonCreration(string info)
Button b = new Button();
b.FlatAppearance.BorderSize = 1;
b.FlatStyle = FlatStyle.Flat;
b.Name = info;
b.Size = new Size(70, 80);
b.Text = info;
b.UseVisualStyleBackColor = false;
b.Visible = false; //this with make the button hidden
return b;
private void btn_Click(object sender, EventArgs e)
((Button)((sender as Button)?.Tag)).Visible = true;
private void btnInfo_Click(object sender, EventArgs e)
Button b = (sender as Button);
b.Text = "name"; //simple even when button gets visible so i can test it woeks
【讨论】：
你好 Henoc，这个例子非常适合我，很容易实现我的需要。谢谢你的帮助。【参考方案2】：在执行此类操作时，我更喜欢创建一个派生自 System.Windows.Forms.Button 类的自定义类，并向其添加属性以帮助我更轻松地进行后续调用。
public partial class Form1 : Form
public Form1()
InitializeComponent();
private void Form1_Load(object sender, EventArgs e)
for (int i = 0; i < 3; i++) //simple loop just to simulate the request
createContractButton(); //will generate 3 contractButtons with Visible = true
// createInfoButton(); - Don't do this here
private Button createInfoButton()
Button infoButton = infoButtonCreration("infoButton");
flowLayoutPanel1.Controls.Add(infoButton);
infoButton.Click += new EventHandler(btnInfo_Click);
return infoButton;
private void createContractButton()
MyCustomButton contractButton = contractButtonCreation("contractButton");
flowLayoutPanel1.Controls.Add(contractButton);
contractButton.Click += new EventHandler(btn_Click);
// Create new infoButton here, tied directly to the ContractButton you have just created
contractButton.InfoButton = this.createInfoButton();
MyCustomButton contractButtonCreation(string contract)
MyCustomButton b = new MyCustomButton();
b.FlatAppearance.BorderSize = 1;
b.FlatStyle = FlatStyle.Flat;
b.Name = contract;
b.Size = new Size(150, 80);
b.Text = contract;
b.UseVisualStyleBackColor = false;
return b;
Button infoButtonCreration(string info)
Button b = new Button();
b.FlatAppearance.BorderSize = 1;
b.FlatStyle = FlatStyle.Flat;
b.Name = info;
b.Size = new Size(70, 80);
b.Text = info;
b.UseVisualStyleBackColor = false;
b.Visible = false; //this with make the button hidden
return b;
private void btn_Click(object sender, EventArgs e)
//here i need the magic, on click i need the infoButton nect to me to be visible
MyCustomButton button = sender as MyCustomButton;
button.InfoButton.Visible = true;
private void btnInfo_Click(object sender, EventArgs e)
Button b = (sender as Button);
b.Text = "name"; //simple even when button gets visible so i can test it woeks
public class MyCustomButton : Button
public Button InfoButton get; set;
MyCustomButton 类的工作方式与普通 Button 完全相同，但具有一个很好的自定义属性来访问 InfoButton 或您以后想要添加到它的任何其他属性的额外好处。
【讨论】：
JayV，感谢您的支持，这个例子也可以。【参考方案3】：一般来说，隐藏按钮需要参考。如果您不想做按钮变量，您可以在 flowLayoutPanel1.control 中添加带有位置的 contractButton 标记。在事件 OnClick 上，contractButton 获取标签并添加 1 并从 flowLayoutPanel1.controls 面板获取按钮并更改 Visible = true
private void btn_Click(object sender, EventArgs e)
Button btn = sender as Button;
var hiddenBtn = flowLayoutPanel1.controls[btn.Tag + 1];
hiddenBtn.Visible = true;
private void Form1_Load(object sender, EventArgs e)
for (int i = 0; i < 3; i++)
createContractButton(i);
createInfoButton();
private void createContractButton(int i)
Button contractButton = contractButtonCreation("contractButton");
contractButton.Tag = i
flowLayoutPanel1.Controls.Add(contractButton);
contractButton.Click += new EventHandler(btn_Click);
注意：b.Name 必须是唯一的
【讨论】：
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