Toolbox——Common Controls——ComboBox

- 不可编辑
1） 代码方法
在***.cs中修改，而不是**.Designer.cs中修改

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 loginView
{
   public partial class OtherForm : Form
   {
       public OtherForm()
       {
           InitializeComponent();

           comboBox1.Items.AddRange(new object[] { "锯嘴葫芦", "土拨鼠", "渣渣猫", "波波" });
           comboBox1.SelectedIndex = 0;
           comboBox2.Items.AddRange(new object[] { "锯嘴葫芦", "土拨鼠", "渣渣猫","波波" });
           comboBox2.SelectedIndex = 0;
           comboBox1.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;         
       }
   }
}

在代码中修改，设计界面不会显示变化

2） 属性中修改

修改前后设计界面对比图

修改前后运行窗口对比图

- 不可选择
1）代码方法

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 loginView
{
    public partial class OtherForm : Form
    {
        public OtherForm()
        {
            InitializeComponent();

            comboBox1.Items.AddRange(new object[] { "锯嘴葫芦", "土拨鼠", "渣渣猫", "波波" });
            comboBox1.SelectedIndex = 0;
            comboBox2.Items.AddRange(new object[] { "锯嘴葫芦", "土拨鼠", "渣渣猫","波波" });
            comboBox2.SelectedIndex = 0;
            
            comboBox1.Enabled = false;
        }
    }
}

2）属性修改

修改前后设计界面看不到明显变化

运行窗口界面变化