从DataGridView中的枚举创建下拉列表选项

I currently have a class and I'm trying to create an easy GUI to create a collection of this class. Most of the attributes of this class are strings. However, one of the attributes I want the user to be able to set is an Enum. Therefore, I would like the user interface, to have a dropdownlist for this enum, to restrict the user from entering a value that is not valid. Currently, I am taking the initial list of objects, adding them to a DataTable and setting the DataSource of my DataGridView to the table. Works nicely, even creates a checkbox column for the one Boolean property. But, I don't know how to make the column for the enum into a dropdownlist. I am using C# and .NET 2.0.

我目前有一个类，我正在尝试创建一个简单的GUI来创建这个类的集合。这个类的大多数属性都是字符串。但是，我希望用户能够设置的属性之一是Enum。因此，我希望用户界面具有此枚举的下拉列表，以限制用户输入无效的值。目前，我正在获取对象的初始列表，将它们添加到DataTable并将DataGridView的DataSource设置为表。很好地工作，甚至为一个布尔属性创建一个复选框列。但是，我不知道如何将枚举列放入下拉列表中。我正在使用C＃和.NET 2.0。

Also, I have tried assigning the DataSource of the DataGridView to the list of my objects, but when I do this, it doesn't help with the enum and I'm unable to create new rows in the DataGridView, but I am definitely not bound to using a DataTable as my DataSource, it was simply the option I have semi-working.

此外，我已经尝试将DataGridView的DataSource分配给我的对象列表，但是当我这样做时，它对枚举没有帮助，我无法在DataGridView中创建新行，但我绝对不是绑定使用DataTable作为我的DataSource，它只是我半工作的选项。

2 个解决方案

#1

I do not know if that would work with a DataGridView column but it works with ComboBoxes:

我不知道这是否适用于DataGridView列，但它适用于ComboBoxes：

comboBox1.DataSource = Enum.GetValues(typeof(MyEnum));

and:

和：

MyEnum value = (MyEnum)comboBox1.SelectedValue;

UPDATE: It works with DataGridView columns too, just remember to set the value type.

更新：它也适用于DataGridView列，只记得设置值类型。

DataGridViewComboBoxColumn col = new DataGridViewComboBoxColumn();
col.Name = "My Enum Column";
col.DataSource = Enum.GetValues(typeof(MyEnum));
col.ValueType = typeof(MyEnum);
dataGridView1.Columns.Add(col);

#2

Or, if you need to do some filtering of the enumerator values, you can loop through Enum.GetValues(typeof(EnumeratorName)) and add the ones you want using:

或者，如果您需要对枚举器值进行一些过滤，则可以循环遍历Enum.GetValues（typeof（EnumeratorName））并添加您想要的那些：

dataGridViewComboBoxColumn.Items.Add(EnumeratorValue)

As an aside, rather than using a DataTable, you can set the DataSource of the DataGridView to a BindingSource object, with the DataSource of the BindingSource object set to a BindingList<Your Class>, which you populate by passing an IList into the constructor.

另外，您可以将DataGridView的DataSource设置为BindingSource对象，而不是使用DataTable，将BindingSource对象的DataSource设置为BindingList ，您可以通过将IList传递给构造函数来填充它。

Actually, I'd be interested to know from anyone if this is preferable to using a DataTable in situations where you don't already have one (i.e. it is returned from a database call).

实际上，我有兴趣知道在没有数据表的情况下使用DataTable是否比使用DataTable更好（即从数据库调用返回）。

#1