Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
416 views
in Technique[技术] by (71.8m points)

c# - Gridview using a generic list as DataSource and Auto-generating columns

I'm looking to load a GridView with a generic list and have the columns be auto-generated. I am getting an exception that it does not have the correct properties to allow it to auto-generate the columns.

Exception

The data source for GridView with id 'GV1' did not have any properties or attributes from which to generate columns.  Ensure that your data source has content.

GridView

<asp:GridView ID="GV1" runat="server" AutoGenerateColumns="true"></asp:GridView>

Page Load

    //LINQ query to populate list
    List<student> su = new List<student>();
    dbDataContext db = new dbDataContext();
    var q = from c in db.data_table
            where c.processed == false
            orderby c.date_complete descending
            select c;
     //iterate through results and add to list
     foreach(var c in q)
     {
         student s = new student { name = c.name, address = c.address };
         su.Add(s);
     } 

     //Load GridView
     GV1.DataSource = su;
     GV1.DataBind(); //Exception thrown here

Student Class

public class student
{
    public string name;
    public string address;
}

Any thoughts or suggestions are appreciated, feel free to let me know if I'm going about this completely wrong.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

Try adjusting your student class and change your fields into properties like this:

public class student
{
   public string name { get; set; }
   public string address { get; set; }
}

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...