Introduction:
Here we will learn how to send list (List<string>) as parameter to function in asp.net using c#,
vb.net
with example or asp.net pass generic list as parameter to method using c#,
vb.net
with example or asp.net pass list object as parameter in function using c#,
vb.net
with example or pass list<class> as an argument to the function in asp.net
using c#, vb.net
with examples. We can easily send list values as a parameter to the function
normal like other functions with parameters.
Description:
In previous articles I explained get first element from ienumerable list in c#, vb.net, convert datatable to ienumerable list in c#, vb.net with
example, difference between iqueryable and ienumerable in c#, vb.net,
Different types of constructors in c#, vb.net, destructor in c#, vb.net with examples and many more
articles related to in asp.net,
c#,
vb.net.
Now I will explain how to send or pass generic list as a parameter to the
function in asp.net using c#,
vb.net
with example.
Generally in c#
or vb.net
to send generic list as a parameter in function we need to write the code like
as shown below.
C#
Code
public void yourfunction(List<UserDetails>
user)
{
----------------------
---- your code -----
---------------------
}
|
VB.NET
Code
Public Sub yourfunction(user
As List(Of UserDetails))
--------------------------------
--------- your code -----------
--------------------------------
End Sub
|
If you want complete example of sending list as a
parameter in function open web application page and write code like as shown
below
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Send
Generic List as a Parameter to Function in C#, Vb.net</title>
</head>
<body>
<form id="form1"
runat="server">
<div>
<asp:GridView ID="gvDetails"
runat="server">
</asp:GridView>
</div>
</form>
</body>
</html>
|
Now open code behind file and write the code like as
shown below
C#
Code
using System;
using
System.Collections.Generic;
public partial class SendListAsParameter : System.Web.UI.Page
{
protected
void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
List<UserDetails>
userinfo = new List<UserDetails>();
UserDetails
user = new UserDetails();
user.userid = 1;
user.username = "Suresh
Dasari";
user.education = "B.Tech";
user.location = "Hyderabad";
userinfo.Add(user);
user = new UserDetails();
user.userid = 2;
user.username = "Rohini
Alavala";
user.education = "Msc";
user.location = "Guntur";
userinfo.Add(user);
user = new UserDetails();
user.userid = 3;
user.username = "Praveen
Kumar";
user.education = "B.Tech";
user.location = "Bangalore";
userinfo.Add(user);
user = new UserDetails();
user.userid = 4;
user.username = "Madhav
Sai";
user.education = "MBA";
user.location = "Nagpur";
userinfo.Add(user);
BindGridview(userinfo);
}
}
public void
BindGridview(List<UserDetails> user)
{
gvDetails.DataSource = user;
gvDetails.DataBind();
}
}
public class UserDetails
{
public int userid { get; set; }
public string username {
get; set; }
public string education
{ get; set; }
public string location {
get; set; }
}
|
VB.NET
Code
Imports
System.Collections
Partial Class VBCode
Inherits
System.Web.UI.Page
Protected
Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load
If Not IsPostBack Then
Dim userinfo As New List(Of UserDetails)()
Dim user As New UserDetails()
user.userid = 1
user.username = "Suresh
Dasari"
user.education = "B.Tech"
user.location = "Hyderabad"
userinfo.Add(user)
user = New UserDetails()
user.userid = 2
user.username = "Rohini
Alavala"
user.education = "Msc"
user.location = "Guntur"
userinfo.Add(user)
user = New UserDetails()
user.userid = 3
user.username = "Praveen
Kumar"
user.education = "B.Tech"
user.location = "Bangalore"
userinfo.Add(user)
user = New UserDetails()
user.userid = 4
user.username = "Madhav
Sai"
user.education = "MBA"
user.location = "Nagpur"
userinfo.Add(user)
BindGridview(userinfo)
End If
End Sub
Public Sub
BindGridview(user As List(Of UserDetails))
gvDetails.DataSource = user
gvDetails.DataBind()
End Sub
End Class
Public Class UserDetails
Public Property userid() As Integer
Get
Return m_userid
End Get
Set
m_userid = Value
End Set
End Property
Private m_userid As Integer
Public Property username()
As String
Get
Return m_username
End Get
Set
m_username = Value
End Set
End Property
Private m_username
As String
Public Property
education() As String
Get
Return
m_education
End Get
Set
m_education = Value
End Set
End Property
Private
m_education As String
Public Property location()
As String
Get
Return m_location
End Get
Set
m_location = Value
End Set
End Property
Private m_location
As String
End Class
|
Demo
When we run above code we will get result like as shown
below.
 |
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