运行时禁用datagridviewcombobox [英] Runtime disable the datagridviewcombobox

问题描述

我如何运行时使datagridviewcombobox有这样的特点：

How do i runtime make the datagridviewcombobox to have this features:

1）如何在datagridviewcombobox为默认结果
2）禁用/使datagridviewcombobox是只读，同时显示的第一个值作为默认值。意思就是说，如果我在datagridviewcombobox 3项，我想让它显示只有第一个。 （可以禁用组合框是下拉，或改变它成为在运行文本框）。

1) How do i Set the first value in the datagridviewcombobox as default
2) Disable/make the datagridviewcombobox to be readonly while showing the first value as default. Meaning to say, if i have 3 items in the datagridviewcombobox, i want it to show only the first one. (Either disable the combobox to be drop down, or change it to become textbox at runtime).

原因：结果
我之所以这样做，是因为我的枚举我有状态{新建= 1，停止= 2，温度= 3}，当我想注册的学生，状态始终如新。所以，当我保存，它会自动保存状态= 1

Reason:
The reason i do that is because for my enum i have Status{New=1,Stop=2,Temp=3}, when i want to register a student, the status is always as New. So when i save, it will auto save the Status = 1

请咨询。

推荐答案

下面是如何设置的默认值，禁用电池：

Here is how to set the default value and disable the cell:

using System;
using System.Windows.Forms;

namespace WindowsFormsApplication3
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);

            Column1.DataSource = new int[] { 1, 2, 3 };
            Column1.DataPropertyName = "Number";
            dataGridView1.DataSource = new[] 
            { 
                new { Number=1 },
                new { Number=2 },
                new { Number=3 },
                new { Number=1 }
            };
        }

        private void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
        {
            if (e.ColumnIndex == Column1.Index && e.RowIndex == (dataGridView1.Rows.Count - 1))
            {
                DataGridViewComboBoxCell cell = (DataGridViewComboBoxCell)dataGridView1[e.ColumnIndex, e.RowIndex];

                cell.Value = 2;
                cell.DisplayStyle = DataGridViewComboBoxDisplayStyle.Nothing;
                cell.ReadOnly = true;
            }
        }
    }
}

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