这是一个类似于
How to bind a custom Enum description to a DataGrid的问题,但在我的情况下,我有多个属性.
public enum ExpectationResult
{
[Description("-")]
NoExpectation,[Description("Passed")]
Pass,[Description("Failed")]
Fail
}
public class TestResult
{
public string TestDescription { get; set; }
public ExpectationResult requiredExpectationResult { get; set; }
public ExpectationResult NonrequiredExpectationResult { get; set; }
}
我绑定一个BindingList< TestResult>到WinForms DataGridView(实际上是一个DevExpress.XtraGrid.GridControl,但一般的解决方案将更广泛地适用).我想要描述而不是枚举名称.我该如何做到这一点？ (没有对类/枚举/属性的约束;我可以随意改变它们.)
解决方法
TypeConverter通常会做这个工作;这里有一些适用于DataGridView的代码 – 只需添加代码来读取描述(通过反射等) – 我刚刚使用了一个字符串前缀来显示自定义代码的工作).
注意你可能也想覆盖ConvertFrom.可以在类型或属性级别指定转换器(如果您只希望它适用于某些属性),并且还可以在运行时应用枚举不受您的控制.
using System.ComponentModel;
using System.Windows.Forms;
[TypeConverter(typeof(ExpectationResultConverter))]
public enum ExpectationResult
{
[Description("-")]
NoExpectation,[Description("Failed")]
Fail
}
class ExpectationResultConverter : EnumConverter
{
public ExpectationResultConverter()
: base(
typeof(ExpectationResult))
{ }
public override object ConvertTo(ITypeDescriptorContext context,System.Globalization.CultureInfo culture,object value,System.Type destinationType)
{
if (destinationType == typeof(string))
{
return "abc " + value.ToString(); // your code here
}
return base.ConvertTo(context,culture,value,destinationType);
}
}
public class TestResult
{
public string TestDescription { get; set; }
public ExpectationResult requiredExpectationResult { get; set; }
public ExpectationResult NonrequiredExpectationResult { get; set; }
static void Main()
{
BindingList<TestResult> list = new BindingList<TestResult>();
DataGridView grid = new DataGridView();
grid.DataSource = list;
Form form = new Form();
grid.Dock = DockStyle.Fill;
form.Controls.Add(grid);
Application.Run(form);
}
}
