Query string is the part of URL that can be used to send data as parameters.
Let's first analyze the query string generated by Google on making a search for 'Shalvin'
http://www.google.co.in/search?hl=en&q=Shalvin.Here two values are passed as query string.
Create a Web site with two web pages.
In the button click of Default.aspx write the following code:
protected void sumButton_Click(object sender, EventArgs e)
{ Response.Redirect("Sum.aspx?Val1=" + txtVal1.Text + "&Val2=" + txtVal2.Text); }
Here is the code for extracting the value in the second page.
protected void Page_Load(object sender, EventArgs e)
{
Response.Write("Hello " + Request.QueryString["Name"] + " your blog is " + Request.QueryString["Blog"]);
}
Calculator<body>
<form id="form1" runat="server">
<div>
Value 1<asp:TextBox ID="txtVal1" runat="server"></asp:TextBox>
<asp:CompareValidator ID="CompareValidator1" runat="server"
ControlToValidate="txtVal1" ErrorMessage="Value cannot be string"
Operator="DataTypeCheck" Type="Integer"></asp:CompareValidator>
<br />
<br />
Value 2<asp:TextBox ID="txtVal2" runat="server"></asp:TextBox>
<asp:CompareValidator ID="CompareValidator2" runat="server"
ControlToValidate="txtVal2" ErrorMessage="Value cannot be string "
Operator="DataTypeCheck" Type="Integer"></asp:CompareValidator>
<br />
<br />
<asp:Button ID="sumButton" runat="server" onclick="Button1_Click" Text="Button" />
</div>
</form>
</body>
Default.aspx
protected void Button1_Click(object sender, EventArgs e)
{ Response.Redirect("Sum.aspx?Val1=" + txtVal1.Text + "&Val2=" + txtVal2.Text); }
Sum.aspx
int i, j, res;
protected void Page_Load(object sender, EventArgs e)
{
i = Int32.Parse(Request.QueryString["Val1"]);
j = Int32.Parse(Request.QueryString["Val2"]);
res = i + j;
Response.Write(res.ToString());
}
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