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Query String in web forms asp.net c#
Introduction
Query String in web forms asp.net is very important if you have a shopping products. Through this article we will show you how to use Query String in web forms asp.net also you can say i will provide you an example of it. If we want to pass control or variable value from one form
to another form then we can use QueryString . There are many options available to
pass queryString , these are.
In Hyperlink:
<a href=”~/Default.aspx?id=10&name=Jacob”>QueryString
Example</a>
In Response.Redirect method :
Response.Redirect(“~/Default.aspx?id=10&name=Jacob”);
If we want to get queryString Parameter valuefrom url then
we should use Request.QueryString
Object.
Label1.Text=Request.QueryString[“querystring parameter”].ToString();
Lets take an simple example to pass textbox value from one
form to another form using QueryString.
<%@ Page
Language="C#"
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD
XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void
Button1_Click(object sender, EventArgs e)
{
Response.Redirect("~/Default2.aspx?name="
+ TextBox1.Text);
}
protected void
Page_Load(object sender, EventArgs e)
{
if (Page.Request.QueryString["name"]
!= null)
{
Label1.Text = "name of the querystring
parameter is " + Page.Request.QueryString["name"];
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
Enter
Name :
<asp:TextBox ID="TextBox1"
runat="server"></asp:TextBox><br />
<asp:Button ID="Button1"
runat="server"
Text="QueryString"
OnClick="Button1_Click"
/><br />
<asp:Label ID="Label1" runat="server"
Text=""></asp:Label>
</div>
</form>
</body>
</html>
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