what error in this please clear this error

Apr 29 2014 3:04 AM

i need to use if condition
in else if condition it throw error like

Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.

Compiler Error Message: CS0103: The name 'c' does not exist in the current context

Source Error:

Line 83: } Line 84: Line 85: else if (c != 0) Line 86: { Line 87: int c = int.Parse(TextBox3.Text) + int.Parse(TextBox4.Text);

Source File: d:\sample tools\retrievedata\Default.aspx.cs Line: 85

Show Detailed Compiler Output:

Show Complete Compilation Source:

my design
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">

<div>
<table>
<tr>
<td>
<asp:Label ID="Label2" runat="server" Text="Purchase"></asp:Label>
</td>
<td>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td>
<asp:Label ID="Label3" runat="server" Text="Sales"></asp:Label>
</td>
<td>
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td>
<asp:Label ID="Label5" runat="server" Text="Return"></asp:Label>
</td>
<td>
<asp:TextBox ID="TextBox4" runat="server" ontextchanged="TextBox4_TextChanged" AutoPostBack="true"></asp:TextBox>
</td>
</tr>
<tr>
<td>
<asp:Label ID="Label4" runat="server" Text="Balance"></asp:Label>
</td>
<td>
<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
</td>
</tr>

<%-- <tr>
<td>

</td>
<td>

</td>
</tr>--%>
<tr>
<td colspan="2">
<asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />
<asp:Label ID="Label1" runat="server" Text=""></asp:Label>
</td>

</tr>
<tr>
<td colspan="2">
<asp:Button ID="Button2" runat="server" Text="Clear" onclick="Button2_Click" />
</td>

</tr>
</table>

<%-- <asp:TextBox ID="TextBox5" runat="server"></asp:TextBox>--%>

</div>
</form>
</body>
</html>
my coding
using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
int a = int.Parse(TextBox1.Text);
int b = int.Parse(TextBox2.Text);
// int c = int.Parse(TextBox3.Text);
if (a == b)
{
int c = int.Parse(TextBox1.Text) - int.Parse(TextBox2.Text);
TextBox3.Text = Convert.ToString(c);

//Label1.Text = "balance is nill";
}
else if (a >= b)
{
int c = int.Parse(TextBox1.Text) - int.Parse(TextBox2.Text);
TextBox3.Text = Convert.ToString(c);

}
else if (a <= b)
{
// Label1.Text = "Stock is over";
int c = int.Parse(TextBox1.Text) - int.Parse(TextBox2.Text);
TextBox3.Text = Convert.ToString(c);
}
}
protected void TextBox4_TextChanged(object sender, EventArgs e)
{
int a = int.Parse(TextBox1.Text);
int b = int.Parse(TextBox2.Text);
// int c = int.Parse(TextBox3.Text);
if (a == b)
{
int c = int.Parse(TextBox1.Text) - int.Parse(TextBox2.Text);
c= int.Parse(TextBox3.Text) - int.Parse(TextBox4.Text);
TextBox3.Text = Convert.ToString(c);
//Label1.Text = "balance is nill";
}
else if (c != 0)
{
int c = int.Parse(TextBox3.Text) + int.Parse(TextBox4.Text);
TextBox3.Text = Convert.ToString(c);
}

Answers (5)

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