ASP.NET/C# Linq Binding to GridView

Question

I group my data by length as follows

int[] a = { 1, 2, 3,45,45,100,566};

var result =
 a.GroupBy(x => x.ToString().Length).
 Select(d => new { Key = d.Key, Grp = d });

My BulletedList is nested in GridView(placed as template field) to display the items,What is the way to bind the BulletedList when GridView displays "Key".

 GridView1.DataSource = result;
 GridView1.DataBind();

Chris Ballance · Accepted Answer · 2009-12-14 23:21:51Z

2

set DataKeyNames to your key name

For example:

<asp:gridview id="CustomersGridView" 
        datasourceid="CustomersSource" 
        autogeneratecolumns="true"
        emptydatatext="No data available." 
        autogenerateselectbutton="true"    
        datakeynames="CustomerID"

answered Dec 14, 2009 at 23:21

Chris Ballance

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1 Comment

Jim Schubert Over a year ago

+1 for the right answer, but as pertaining to the question: add GridView1.DataKeyNames = "Key"; just before the DataBind()

Jim Schubert · Accepted Answer · 2009-12-14 23:29:04Z

0

Binding to a bulleted list within a gridview (works similarly for any control, of course)

 void GridView1_RowDataBound(Object sender, GridViewRowEventArgs e)
  {

    if(e.Row.RowType == DataControlRowType.DataRow)
    {
      RadioButtonList list = (RadioButtonList)e.Row.FindControl("rbList");
      if(list != null)
      {
         list.DataSource = mysource;
         list.DataBind();
      }
    }
   }

Make sure you add the event to the GridView.

answered Dec 14, 2009 at 23:29

Jim Schubert

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