How many ways do you know to send the data between ASP.NET Pages? In this post I’m going to list 5 different ways. First 2-3 ways are very well-known and last 2-3 ways are not much popular. You will find here mostly inline methods to receive the data on different pages. You can download the complete code.
So, let’s start with the very well-known one.
1. Using Session State or Application Variable
Using this technique I will store the data in session variable on the client machine and on the next page will grab it. Using Application Variable instead of Session Variable is recommend by experts.
ASPX Page:
<asp:TextBox ID="txtData" runat="server"></asp:TextBox>
<br /><br />
<asp:Button ID="btnSessionState" runat="server" Text="Session State" OnClick="btnSessionState_Click"/>
Code-Behind:
protected void btnSessionState_Click(object sender, EventArgs e)
{
Session["Data"] = txtData.Text;
Response.Redirect("SessionState.aspx");
}
Receiver ASPX Page:
<div>
<h1>Session State</h1>
Data is: <%=Session["Data"] %>
And you all set, run it test it.
2. Using Query String
Using this technique I will add my data with URL and on the next page will grab it.
ASPX Page:
<asp:TextBox ID="txtData" runat="server"></asp:TextBox>
<br /><br />
<asp:Button ID="btnQueryString" runat="server" Text="Query String" OnClick="btnQueryString_Click" />
Code-Behind:
protected void btnQueryString_Click(object sender, EventArgs e)
{
Response.Redirect("QueryString.aspx?Data=" + Server.UrlEncode(txtData.Text));
}
Receiver ASPX Page:
<h1>Query String</h1>
Data is: <%=Server.UrlDecode(Request.QueryString["Data"]) %>
And you all set, run it test it.
3. Using HttpPost
Using this technique I will call a post back url and the on next page using Request.From I will grab it.
ASPX Page:
<asp:TextBox ID="txtData" runat="server"></asp:TextBox>
<br /><br />
<asp:Button ID="btnHttpPost" runat="server" Text="HTTPPost" PostBackUrl="~/HttpPost.aspx" />
Note: There is no any code-behind method call instead of a postbackurl in button attribute.
Receiver ASPX Page:
<h1>HttpPost</h1>
Data is: <%=Request.Form["txtData"] %>
And you all set, run it test it.
4. Using Public Properties
Using this technique I will send the using a public method and on the next page will grab it using PreviousPage.MethodName.
ASPX Page:
<asp:TextBox ID="txtData" runat="server"></asp:TextBox>
<br /><br />
<asp:Button ID="btnPublicProperties" runat="server" Text="Public Properties"OnClick="btnPublicProperties_Click" />
Code-Behind:
protected void btnPublicProperties_Click(object sender, EventArgs e)
{
Server.Transfer("PublicProperties.aspx");
}
public string PublicData
{
get
{
return txtData.Text;
}
}
Receiver ASPX Page:
<h1>Public Properties</h1>
Data is: <%=PreviousPage.PublicData %>
And you all set, run it test it.
5. Using Controls
Using this technique I will just redirect the user on next page and on the next page will use PreviousPage.FindControl to grab the data.
ASPX Page:
<asp:TextBox ID="txtData" runat="server"></asp:TextBox>
<br /><br />
<asp:Button ID="btnControl" runat="server" Text="Control" OnClick="btnControl_Click" />
Code-Behind:
protected void btnControl_Click(object sender, EventArgs e)
{
Server.Transfer("Control.aspx");
}
Receiver ASPX Page:
<h1>Control</h1>
Data is: <asp:Label ID="Label1" runat="server" Text="Label" />
Receiver Code-Behind Page:
protected void Page_Load(object sender, EventArgs e)
{
var textbox = PreviousPage.FindControl("txtData") as TextBox;
if (textbox != null)
{
Label1.Text = textbox.Text;
}
}
And you all set, run it test it.
You can use any technique given above depending upon your business requirement.