Error Handling in c#

Question

0.00/5 (No votes)

See more:

i use code for the search file

C#

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;

using System.Configuration;
using System.Text;


namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            {
                string search = textBox1.Text;
                string[] files = Directory.GetFiles(@"D:\\dhaval\\study", "*.*", SearchOption.AllDirectories);
                int Flag = 0;
                string dir = @"D:\\dhaval\\study";
                string[] files1;
                int numFiles;
                files1 = Directory.GetFiles(dir);
                numFiles = files.Length;
                Response.Write("Files searched : " + numFiles + "<br>");
                for (int i = 0; i < numFiles; i++)
                {


                    string file = files[i].ToString();

                    int file1 = file.IndexOf(search, StringComparison.CurrentCultureIgnoreCase);
                    if (file1 != -1)
                    {
                        Response.Write("<br>" + file);
                        //Response.Write("<div style='removed:absolute;removed" + file + "px;removed" +  "px'>"+file! + "</div>");
                        Flag = 1;

                    }




                }
                if (Flag == 0)
                {
                    Response.Write("No Matches Found");
                }
            }
        }
    }
}

so i get following error

Error :"The name 'Response' does not exist in the current context"
so how to remove this error please give me suggestion
thanks

Posted 26-Jan-14 21:52pm

dhaval082

Updated 28-Jan-14 5:49am

agent_kruger

v2

Add a Solution

6 solutions

Solution 1

The error message is clear: you didn't define any object Response. What is it supposed to be?

Posted 26-Jan-14 22:02pm

CPallini

Comments

dhaval082 27-Jan-14 4:10am

how to define object Response

Solution 6

Cutting all complexities,

Please create a web application and run the code, what you have done is created a winform application.

Posted 27-Jan-14 1:40am

Rahul VB

Solution 4

please add system.web dll and use the following code

C#

using System;
using System.Web;

using System.Windows.Forms;
using System.IO;
using System.Diagnostics;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            {
                string search = "";
                string[] files = Directory.GetFiles(@"D:\\dhaval\\study", "*.*", SearchOption.AllDirectories);
                int Flag = 0;
                string dir = @"D:\\dhaval\\study";
                string[] files1;
                int numFiles;
                files1 = Directory.GetFiles(dir);
                numFiles = files.Length;
             
          
                HttpContext c = HttpContext.Current;      // added by muntaser zalloum 

                c.Response.Write("Files searched : " + numFiles + "<br>");


                for (int i = 0; i < numFiles; i++)
                {


                    string file = files[i].ToString();

                    int file1 = file.IndexOf(search, StringComparison.CurrentCultureIgnoreCase);
                    if (file1 != -1)
                    {
                      c. Response.Write("<br>" + file);
                        //Response.Write("<div style="removed:absolute;removed" + file + "px;removed" +  "px">"+file! + "</div>");
                        Flag = 1;

                    }

                }
                if (Flag == 0)
                {
                  c.  Response.Write("No Matches Found");
                }
            }
        }
    }
}

Posted 26-Jan-14 22:15pm

muntaser zalloum

Updated 28-Jan-14 6:13am

v2

Comments

Richard MacCutchan 28-Jan-14 4:07am

Please format your code and put <pre> tags around it.

CHill60 28-Jan-14 12:20pm

formatted post but see other posts above for the correct solution(s)

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

phil.o · Accepted Answer · 2014-01-26T22:12:00

Clearly your are using Windows Forms. So in this context there is no Response object, which you can only find in web applications.

So you have several choices :

1- Create a web application instead of a Windows Forms one

2- Create a console application and use

C#

Console.Write("Whatever text you want to present to the user");

3- Keep your Windows Forms Application and use a control (for example, a TextBox) to present text messages to the user.
You can also use the Debug object, but in this case message will not be presented on the application itself but in the debug console of your IDE.

But the main useful advise would be: please learn to study the objects you are using. Here it seems you have copied/pasted some codes obtained from several sources without understanding what is behind them in the first place.
You should study the differences between a Windows Forms Application and an ASP.NET Web Application.
Some useful links:
Choosing Between Windows Forms and Web Forms[^]
ASP.NET Verses Winforms[^]

These are just the most obvious links; you can find many others using your favorite search engine.

Good luck, learning development takes some time, don't be afraid to read, and read, and then read some more.

Karthik_Mahalingam · Accepted Answer · 2014-01-26T22:39:00

You have copied the code from some web application and pasted in the Windows application.

To view the output in the screen
Create a label control ( Drag and drop a label ( default name:label1 ) to the form )

just replace these lines

C#

  Response.Write("<br>" + file);
  label1.Text += file + Environment.NewLine;


  Response.Write("No Matches Found");
  label1.Text += file + Environment.NewLine;

Richard MacCutchan · Accepted Answer · 2014-01-26T22:09:00

Solution 2

You have created a Windows Forms application but Response.Write does not exist in Windows Forms. See http://msdn.microsoft.com/en-us/library/ms525585(v=vs.90).aspx[^].

Posted 26-Jan-14 22:09pm

Richard MacCutchan

Comments

Rahul VB 27-Jan-14 13:34pm

I dont understand why has this answer been down voted?

Richard MacCutchan 28-Jan-14 4:08am

There are downvoters everywhere :( Thanks for countervote.

Rahul VB 28-Jan-14 4:13am

Sir, the problem with students of today is they want spoon feeding. Their attitude is to simply post a gibberish paragraph and expect a coded solution. No one wants to take efforts.

Richard MacCutchan 28-Jan-14 7:07am

Sad but true. And my name is Richard, my father was "Sir". :)

Rahul VB 28-Jan-14 12:02pm

Ok Richard :)

Error Handling in c#

6 solutions

Solution 3

Solution 5

Solution 2

Solution 1

Solution 6

Solution 4

Add your solution here

Preview 0