添加枚举组合框 [英] Adding enum to combobox

问题描述

嗨我可以知道如何让下面的枚举值绑定到组合框？
我写了下面的代码效果很好，但不知道这是最好的方法。

Hi may i know how to get the enum value below to bind into the combobox? I wrote the below code which works well but wonder is this the best way.

public enum CourseStudentStatus
{
  Active = 1,
  Completed = 2,
  TempStopped = 3,
  Stopped = 4,
}

//Bind Course Status
Dictionary<string, int> list = new Dictionary<string, int>();
foreach (int enumValue in Enum.GetValues(typeof(CourseStudentStatus)))
  list.Add(Enum.GetName(typeof(CourseStudentStatus), enumValue), enumValue);
var column = ((DataGridViewComboBoxColumn)dgv.Columns["studentCourseStatus"]);
column.DataPropertyName = "StudentStatus";              
column.DisplayMember = "Key";
column.ValueMember = "Value";
column.DataSource= list.ToList();

-----------------更新------------------- 结果
您好我有根据Sanjeevakumar Hiremat改变了我的代码，这和它完美的作品。

----------------- UPDATE -------------------
Hi i have changed my code to this according to Sanjeevakumar Hiremat and it works perfectly.

cbStatus.DataSource = Enum.GetValues（typeof运算（CourseStudentStatus））;

然而，当我想一个get（）和想要的值绑定回cbStatus，将其转换错误{未将对象引用设置到对象的实例。}结果
cbStatus.SelectedValue = Course.Status;

However, when i want to a Get() and want to bind the value back to the cbStatus, it cast error {"Object reference not set to an instance of an object."}
cbStatus.SelectedValue = Course.Status;.

cbStatus.Datasource不是空的，它绑定后具有价值到 cbStatus.DataSource = Enum.GetValues（typeof运算（CourseStudentStatus））;

The cbStatus.Datasource is not empty and it has value after bound to cbStatus.DataSource = Enum.GetValues(typeof(CourseStudentStatus));

请咨询

推荐答案

以下应该是绑定的最简单方法。

Following should be the simplest way to bind it.

column.DataSource = Enum.GetValues(typeof(CourseStudentStatus));

要获得所选择的价值，你需要将它转换为枚举类型。

To get the selected value you need to cast it to the enum type.

CourseStudentStatus selectedValue = (CourseStudentStatus)column.SelectedValue

Enum.GetValues 的返回enumType值的数组然后可以绑定到任何控制权。

Enum.GetValues returns an array of the enumType values which can then be bound to any control.

我已经在一个独立的测试组合框这个，不是在DataGridView中，情况因人而异。

I've tested this on a standalone combobox, not in a combobox column in DataGridView, YMMV.

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