Datas from database to custom List - asp.net

Question

I would like to store some datas from a database to a list of a class.
Unfortunatly, my webpage is totally blank and totally emply...
This my code :
CODE BEHIND :
protected void Page_Load(object sender, EventArgs e)
{
// Requête en chaînes de caractères qui sera utilisée pour récupérer les données dans la table Template
string request = "SELECT Id, Name, Content From Template";
// Process principal
try
{
// Connexion à la base de données et à la table et utilisation de la requêtes SQL
SqlCommand cmd = new SqlCommand(request, connect);
connect.Open();
// Exécution de la requête SQL
SqlDataReader sdr = cmd.ExecuteReader();
// Si la commande comporte des lignes
if (sdr.HasRows)
{
sdr.Read();
string temp_name = sdr["Name"].ToString();
string temp_id = sdr["Id"].ToString();
List<TemplateObject> Liste_template = new List<TemplateObject>()
{
new TemplateObject(temp_id,temp_name)
};
}
GridView1.DataSource = Liste_template;
GridView1.DataBind();
}
finally
{
connect.Close();
}
}
Code from the Class i created :
public class TemplateObject
{
string Id_template { get; set; }
string Name_template { get; set; }
public TemplateObject(string id, string name)
{
this.Id_template = id;
this.Name_template = name;
}
}
I would like to store and display an object which is composed of one TemplateObject and one FormObject, composed with two parameters (as TemplateObject) : id and name. I d'ont create the FormObject, because i'm starting with one at first.
I have to store my datas like this, beacause the datasource is a bit weird and i only work with strings.

Answer 1

You need a loop
create the list before that loop
fill the list in the loop
List<TemplateObject> Liste_template = new List<TemplateObject>()
while(sdr.Read())
{
string temp_name = sdr["Name"].ToString();
string temp_id = sdr["Id"].ToString();
TemplateObject newObject = new TemplateObject(temp_id,temp_name);
Liste_template.Add(TemplateObject)
}
Now you can assign it as DataSource of the GridView:
GridView1.DataSource = Liste_template;
GridView1.DataBind();