DatagridView + Custom Object Binding
I have a datagridview in .NET 3.5 that needs to display the following columns:
ID, name, ID 2, name2
This datagridview is required as follows:
BindingList<Class1> source = new BindingList<Class1>();
source.Add(new Class1 { ID = "1", Name = "Test", Class2Ref = new Class2 { ID2 = "Class2 ID" , Name2 = "Class2 Name"} });
dataGridView1.DataSource = source;
public class Class1
{
public string ID
{
get;
set;
}
public string Name
{
get;
set;
}
public Class2 Class2Ref
{
get;
set;
}
}
public class Class2
{
public string ID2
{
get;
set;
}
public string Name2
{
get;
set;
}
}
The problem is that ID2 and Name2 do not display values in the datagridview. I created columns in Datagridview at design time and the one that matches ID2 and Name2 got the data property as: Class2Ref.ID2 and Class2Ref.Name2
See at the end of the UI, it doesn't matter to the user if ID2 and Name2 are properties of class 1 or class 2, but at the design level of the Entity it does. Please tell me how can I show 2 properties in Datagrid that are not available directly in the class, but through a link.
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Kulvinder singh
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1 answer
You can see if this works for you (this is for me):
<%@ Page Language="C#" AutoEventWireup="true"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
public class Class1
{
public string ID { get; set; }
public string Name { get; set; }
public Class2 Class2Ref { get; set; }
}
public class Class2
{
public string ID2 { get; set; }
public string Name2 { get; set; }
}
void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
myGrid.DataSource = new[]
{
new Class1()
{
ID = "1",
Name = "Name1",
Class2Ref = new Class2()
{
ID2 = "IDRef1",
Name2 = "NameRef1"
}
},
new Class1()
{
ID = "2",
Name = "Name2",
Class2Ref = new Class2()
{
ID2 = "IDRef2",
Name2 = "NameRef2"
}
}
};
myGrid.DataBind();
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:DataGrid runat="server" ID="myGrid" AutoGenerateColumns="false">
<Columns>
<asp:TemplateColumn>
<HeaderTemplate>
ID
</HeaderTemplate>
<ItemTemplate>
<%# Eval("ID") %>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn>
<HeaderTemplate>
Name
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Name") %>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn>
<HeaderTemplate>
ID2
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Class2Ref.ID2") %>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn>
<HeaderTemplate>
Name2
</HeaderTemplate>
<ItemTemplate>
<%# Eval("Class2Ref.Name2") %>
</ItemTemplate>
</asp:TemplateColumn>
</Columns>
</asp:DataGrid>
</div>
</form>
</body>
</html>
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