有没有一种简单的方法来实现WinForms中的Checked Combobox

Question

有谁知道在WinForms中检查组合框的简单实现吗？当使用Google搜索时，我一直无法找到任何东西。

我想要的东西，行为类似于此Windows计划任务触发编辑：

Answer 1

这就是你想要的，我只是自己编码
这个概念非常简单，使用一个面板并在其上添加复选框。然后 强制组合框禁用它的下拉菜单，但仍然可以单击它的向下箭头。使用组合框的DropDown和DropDownClosed事件。当您将组合框的列表向下设置面板的Visible属性为True时，关闭组合框的下拉列表时将其隐藏。

//designer class 

// 
// comboBox1 
// 
this.comboBox1.DrawMode = System.Windows.Forms.DrawMode.OwnerDrawFixed; 
this.comboBox1.DropDownHeight = 1; 
this.comboBox1.DropDownWidth = 1; 
this.comboBox1.FormattingEnabled = true; 
this.comboBox1.IntegralHeight = false; 
this.comboBox1.Location = new System.Drawing.Point(256, 371); 
this.comboBox1.Name = "comboBox1"; 
this.comboBox1.Size = new System.Drawing.Size(238, 21); 
this.comboBox1.TabIndex = 5; 
this.comboBox1.DropDown += new System.EventHandler(this.comboBox1_DropDown); 
this.comboBox1.DropDownClosed += new System.EventHandler(this.comboBox1_DropDownClosed); 
// 
// panel1 
// 
this.panel1.BackColor = System.Drawing.Color.White; 
this.panel1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle; 
this.panel1.Controls.Add(this.checkBox9); 
this.panel1.Controls.Add(this.checkBox8); 
this.panel1.Controls.Add(this.checkBox7); 
this.panel1.Controls.Add(this.checkBox6); 
this.panel1.Controls.Add(this.checkBox5); 
this.panel1.Controls.Add(this.checkBox4); 
this.panel1.Controls.Add(this.checkBox3); 
this.panel1.Controls.Add(this.checkBox2); 
this.panel1.Controls.Add(this.checkBox1); 
this.panel1.Location = new System.Drawing.Point(252, 394); 
this.panel1.Name = "panel1"; 
this.panel1.Size = new System.Drawing.Size(245, 68); 
this.panel1.TabIndex = 6; 
// 
// checkBox9 
// 
this.checkBox9.AutoSize = true; 
this.checkBox9.Location = new System.Drawing.Point(162, 48); 
this.checkBox9.Name = "checkBox9"; 
this.checkBox9.Size = new System.Drawing.Size(80, 17); 
this.checkBox9.TabIndex = 9; 
this.checkBox9.Text = "checkBox9"; 
this.checkBox9.UseVisualStyleBackColor = true; 
// 
// checkBox8 
// 
this.checkBox8.AutoSize = true; 
this.checkBox8.Location = new System.Drawing.Point(162, 27); 
this.checkBox8.Name = "checkBox8"; 
this.checkBox8.Size = new System.Drawing.Size(80, 17); 
this.checkBox8.TabIndex = 8; 
this.checkBox8.Text = "checkBox8"; 
this.checkBox8.UseVisualStyleBackColor = true; 
// 
// checkBox7 
// 
this.checkBox7.AutoSize = true; 
this.checkBox7.Location = new System.Drawing.Point(162, 4); 
this.checkBox7.Name = "checkBox7"; 
this.checkBox7.Size = new System.Drawing.Size(80, 17); 
this.checkBox7.TabIndex = 7; 
this.checkBox7.Text = "checkBox7"; 
this.checkBox7.UseVisualStyleBackColor = true; 
// 
// checkBox6 
// 
this.checkBox6.AutoSize = true; 
this.checkBox6.Location = new System.Drawing.Point(82, 47); 
this.checkBox6.Name = "checkBox6"; 
this.checkBox6.Size = new System.Drawing.Size(80, 17); 
this.checkBox6.TabIndex = 5; 
this.checkBox6.Text = "checkBox6"; 
this.checkBox6.UseVisualStyleBackColor = true; 
// 
// checkBox5 
// 
this.checkBox5.AutoSize = true; 
this.checkBox5.Location = new System.Drawing.Point(82, 26); 
this.checkBox5.Name = "checkBox5"; 
this.checkBox5.Size = new System.Drawing.Size(80, 17); 
this.checkBox5.TabIndex = 4; 
this.checkBox5.Text = "checkBox5"; 
this.checkBox5.UseVisualStyleBackColor = true; 
// 
// checkBox4 
// 
this.checkBox4.AutoSize = true; 
this.checkBox4.Location = new System.Drawing.Point(82, 4); 
this.checkBox4.Name = "checkBox4"; 
this.checkBox4.Size = new System.Drawing.Size(80, 17); 
this.checkBox4.TabIndex = 3; 
this.checkBox4.Text = "checkBox4"; 
this.checkBox4.UseVisualStyleBackColor = true; 
// 
// checkBox3 
// 
this.checkBox3.AutoSize = true; 
this.checkBox3.Location = new System.Drawing.Point(3, 47); 
this.checkBox3.Name = "checkBox3"; 
this.checkBox3.Size = new System.Drawing.Size(80, 17); 
this.checkBox3.TabIndex = 2; 
this.checkBox3.Text = "checkBox3"; 
this.checkBox3.UseVisualStyleBackColor = true; 
// 
// checkBox2 
// 
this.checkBox2.AutoSize = true; 
this.checkBox2.Location = new System.Drawing.Point(4, 24); 
this.checkBox2.Name = "checkBox2"; 
this.checkBox2.Size = new System.Drawing.Size(80, 17); 
this.checkBox2.TabIndex = 1; 
this.checkBox2.Text = "checkBox2"; 
this.checkBox2.UseVisualStyleBackColor = true; 
// 
// checkBox1 
// 
this.checkBox1.AutoSize = true; 
this.checkBox1.Location = new System.Drawing.Point(4, 4); 
this.checkBox1.Name = "checkBox1"; 
this.checkBox1.Size = new System.Drawing.Size(80, 17); 
this.checkBox1.TabIndex = 0; 
this.checkBox1.Text = "checkBox1"; 
this.checkBox1.UseVisualStyleBackColor = true; 

---

public Form1() 
{ 
    InitializeComponent(); 
    panel1.Visible =false; 
} 


private void comboBox1_DropDown(object sender, EventArgs e) 
{ 
    panel1.Visible = true; 
} 

private void comboBox1_DropDownClosed(object sender, EventArgs e) 
{ 
    panel1.Visible = false; 
} 

Answer 2

只是一个快速浏览一下截图，好像实际上有两个控件，组合框，和checklistbox。应该可以使用组合框的DropDown方法使checklistbox可见，然后一旦用户离开checklistbox，将选中的值作为文本追加到组合框（并使checklistbox再次不可见）。只是一个想法;没有编辑权限来查看这是否可行，但似乎很可能。