将类列表绑定到DataGridView

Question

I need to bind a List<MyClass> myList to a DataGridView . And get in the results table with two columns ID and Name.

Code snippets:

private List<MyClass> myList = new List<MyClass>(){...};

public void BindClass()
{
    dataGridView.DataSource = myList;
}

public MyClass
{
   public MyDataClass Data{ get; set; }
}

public MyDataClass
{
   public string ID { get; set; }
   public string Name { get; set; }
}

Is it possible?

Answer 1

How about binding to an anonymous type:

public void BindClass() 
{
    dataGridView1.DataSource = myList.Select(myClass => new {myClass.Data.ID, myClass.Data.Name}).ToList();
}

Will you be updating the data in the datagridview ?

Answer 2

To do that without changing the model is exceptionally tricky (but possible), requiring ICustomTypeDescriptor or TypeDescriptionProvider , and a custom PropertyDescriptor . To be honest: not worth it.

Just add pass-thru properties:

public MyClass
{
   public MyDataClass Data{get; set;}
   [DisplayName("ID")]
   public string DataID {
     get {return Data.ID;}
     set {Data.ID = value;}
   }
   [DisplayName("Name")]
   public string DataName {
     get {return Data.Name;}
     set {Data.Name = value;}
   }
}

Answer 3

It's easy with LINQ as you can see in This answer

Here's a simple implementation of something I needed to attach to datagridview.

     DataGridView1.DataSource =  _
(From i In ItemList Select i.ListID, i.FullName, i.PurchaseDesc, i.EditSequence).ToList

Answer 4

No, you can't do this out of the box. You will have to write a custom binding source (most likely with specialized logic for your specific purpose) to allow 'drilling' deeper than just 1 level of properties.