In this article I will explain with an example, how to store (save) class object and retrieve
Session value in
ASP.Net using C# and VB.Net.
HTML Markup
The following
HTML Markup consists of:
TextBox - For user inputs.
Button – For Save and retrieve Session value.
The Buttons has been assigned with an OnClick event handler.
<table>
<tr>
<td>Name:</td>
<td><asp:TextBox ID="txtName" runat="server"></asp:TextBox></td>
</tr>
<tr>
<td>Age:</td>
<td><asp:TextBox ID="txtAge" runat="server"></asp:TextBox></td>
</tr>
<tr>
<td colspan="2">
<asp:Button ID="btnSave" runat="server" Text="Save" OnClick="OnSave" />
<asp:Button ID="btnGet" runat="server" Text="Get" OnClick="OnGet" />
</td>
</tr>
</table>
Property Class
The class consists of following properties.
C#
public class PersonCS
{
public string Name { get; set; }
public int Age { get; set; }
}
VB.Net
Public Class PersonVB
Public Property Name As String
Public Property Age As Integer
End Class
Storing value in Session in ASP.Net
Inside the OnSave event handler, an object of the Person class is created and values of Name and Age properties are set.
Finally, the person object is set in the Session.
C#
protected void OnSave(object sender, EventArgs e)
{
PersonCS person = new PersonCS()
{
Name = txtName.Text,
Age = Convert.ToInt32(txtAge.Text)
};
Session["Person"] = person;
}
Inside the OnGet event handler the value of Session is retrieved and converted to Person class object.
protected void OnGet(object sender, EventArgs e)
{
PersonCS person = (PersonCS)Session["Person"];
string message = string.Format("Name: {0}.\\nAge: {1}", txtName.Text, Convert.ToInt32(txtAge.Text));
ClientScript.RegisterStartupScript(this.GetType(), "alert", "alert('" + message + "');", true);
}
VB.Net
Protected Sub OnSave(ByVal sender As Object, ByVal e As EventArgs)
Dim person As PersonCS = New PersonCS() With {
.Name = txtName.Text,
.Age = Convert.ToInt32(txtAge.Text)
}
Session("Person") = person
End Sub
Inside the OnGet event handler the value of Session is retrieved and converted to Person class object.
Protected Sub OnGet(ByVal sender As Object, ByVal e As EventArgs)
Dim person As PersonCS = CType(Session("Person"), PersonCS)
Dim message As String = String.Format("Name: {0}.\nAge: {1}", txtName.Text,Convert.ToInt32(txtAge.Text))
ClientScript.RegisterStartupScript(Me.GetType(), "alert", "alert('" & message & "');", True)
End Sub
Screenshot
![Save Store and Retrieve value in ASP.Net]()
Downloads
