i need to use if condition

selvi subramanian

Purchase
Sales
Return
Balance

in my TextBox4_TextChanged it throw error as

Server Error in '/retrievedata' Application.

Compilation Error

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 85:         } Line 86:  Line 87:         else if (c != 0) Line 88:         { Line 89:             int c = int.Parse(TextBox3.Text) + int.Parse(TextBox4.Text);

Source File: d:\sample tools\retrievedata\Default.aspx.cs Line: 87

Show Detailed Compiler Output:

Show Complete Compilation Source:

i need in the balnce field as output as 5.in the textbox

6 Replies

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Lakshmanan Sethu Sankaranarayan12y ago
Hi

Please try this

else if (int.Parse(TextBox3.Text)!= 0)
        {
            int c = int.Parse(TextBox3.Text) + int.Parse(TextBox4.Text);
            TextBox3.Text = Convert.ToString(c);

        }
Lakshmanan Sethu Sankaranarayan12y ago
Please let me know the outcome. and please use other variable than c.

selvi subramanian12y ago

this also show this error

Input string was not in a correct format.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.FormatException: Input string was not in a correct format.

Source Error:

Line 59:         //Label1.Text = "balance is nill"; Line 60:     } Line 61:     else if (int.Parse(TextBox3.Text) != 0) Line 62:     { Line 63:         int c = int.Parse(TextBox3.Text) + int.Parse(TextBox4.Text);

Source File: d:\sample tools\retrievedata\Default.aspx.cs Line: 61

Stack Trace:

[FormatException: Input string was not in a correct format.]    System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) +7470887    System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) +119    System.Int32.Parse(String s) +23    _Default.TextBox4_TextChanged(Object sender, EventArgs e) in d:\sample tools\retrievedata\Default.aspx.cs:61    System.Web.UI.WebControls.TextBox.OnTextChanged(EventArgs e) +8755606    System.Web.UI.WebControls.TextBox.RaisePostDataChangedEvent() +55    System.Web.UI.WebControls.TextBox.System.Web.UI.IPostBackDataHandler.RaisePostDataChangedEvent() +10    System.Web.UI.Page.RaiseChangedEvents() +165    System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1485

Version Information: Microsoft .NET Framework Version:2.0.50727.4984; ASP.NET Version:2.0.50727.4971

Lakshmanan Sethu Sankaranarayan12y ago
Hi

Use the following code

else if (int.Parse(TextBox3.Text)!= 0)
        {
            int c = int.Parse(TextBox3.Text) + int.Parse(TextBox4.Text);
            TextBox3.Text = Convert.ToString(c);

        }
selvi subramanian12y ago
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);
// int c = 0;

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 (c != 0)
{
int c = int.Parse(TextBox3.Text) + int.Parse(TextBox4.Text);
TextBox3.Text = Convert.ToString(c);

}
}
Lakshmanan Sethu Sankaranarayan12y ago
Hi, Please post the source code here.

i need to use if condition

Server Error in '/retrievedata' Application.

Compilation Error

this also show this errorInput string was not in a correct format.

this also show this error

Input string was not in a correct format.