unaccessible due to its protection level

[dropper166]

Code:

using System;
using System.Windows.Forms;

namespace WindowsApplication2
{
    public partial class Form1 : Form
    {
       protected int TextBoxCount = 5; // number of TextBoxes on Form

        //enumeration constants specify textbox indices
        public enum TextBoxIndices
        {
            VIDEOAUDIO,
            TITLE,
            CATEGORY,
            CERTIFICATION,
            COPIES
        }

        //parameterless constructor
        public Form1()
        {
            InitializeComponent();
        }
        //end constructor

        //clear all TExtBoxes
        public void ClearTextBoxes()
        {
            //iterate through every control on form
            for (int i = 0; i < Controls.Count; i++)
            {
                Control myControl = Controls[i]; // get control

                //determine wheterh control is textbox
                if (myControl is TextBox)
                {
                    //clear text property (set to empty string )
                    myControl.Text = "";
                }//end if
            }//end for
        }//end method ClearTextBoxes

        //set text box values to string array values
        public void SetTextBoxValues(string[] values)
        {
            //determine wethere string array has correct lenght
            if (values.Length != TextBoxCount)
            {
                //throw exception if not correct length
                throw (new ApplicationException(" There must be " +
                    (TextBoxCount + 1) + " string in the array"));
            }//end if


            //set array values if array has correct lenght
            else
            {
                //seet array values to text box values
                videoaudiocodeTextBox.Text = values[(int)TextBoxIndices.VIDEOAUDIO];
                titleTextBox.Text = values[(int)TextBoxIndices.TITLE];
                categoryTextBox.Text = values[(int)TextBoxIndices.CATEGORY];
                certificationTextBox.Text = values[(int)TextBoxIndices.CERTIFICATION];
                copiesTextBox.Text = values[(int)TextBoxIndices.COPIES];
            }//end else
        }//end method SetTExtValues

        //return text box values as string array
        public string[] GetTextBoxValues()
        {
            string[] values = new string[TextBoxCount];

            //copy text box fields to string array
            values[(int)TextBoxIndices.VIDEOAUDIO] = videoaudiocodeTextBox.Text;
            values[(int)TextBoxIndices.TITLE] = titleTextBox.Text;
            values[(int)TextBoxIndices.CATEGORY] = categoryTextBox.Text;
            values[(int)TextBoxIndices.CERTIFICATION] = certificationTextBox.Text;
            values[(int)TextBoxIndices.COPIES] = copiesTextBox.Text;

            return values;
        }

      
       
        }//end method
    }//end class

Code:

using System;
using System.Collections.Generic;
using System.Text;

namespace WindowsApplication2
{
   public class Class1
   {
      private int videoandaudio;
      private string title;
      private string category;
      private string certification;
      private int copies;

      //parameterless constructor sets members to default values
      public Class1()
         : this(0, "", "", "", 0)
      {
      }//end constructor

      //overloaded constructor sets members to parameter values 
      public Class1(int videoandaudioValue, string titleValue, string categoryValue,
          string certificationValue, int copiesValue)
      {
         Videoandaudio = videoandaudioValue;
         Title = titleValue;
         Category = categoryValue;
         Certification = certificationValue;
         Copies = copiesValue;
      }//end constructor

      //property that gets and sets account
      public int Videoandaudio
      {
         get
         {
            return videoandaudio;
         }//end get

         set
         {
            videoandaudio = value;
         }//endset
      }//end property Videoandaudio

      //property that gets and sets title
      public string Title
      {
         get
         {
            return title;
         }//end get

         set
         {
            title = value;
         }//endset
      }//end property title

      //property that gets and sets category
      public string Category
      {
         get
         {
            return category;
         }//end get

         set
         {
            category = value;
         }//endset
      }//end property category

      //property that gets and sets certification
      public string Certification
      {
         get
         {
            return certification;
         }//end get

         set
         {
            certification = value;
         }//endset
      }//end property certification

      //property that gets and sets coopies
      public int Copies
      {
         get
         {
            return copies;
         }//end get

         set
         {
            copies = value;
         }//endset
      }//end property copies




      }//end class
   }

Code:

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace WindowsApplication2
{
   public partial class Class2 : Form1
   {
      private StreamWriter fileWriter; // writes datea to text file
      private FileStream output; // maintains connection  to file

        //pramaterless constructor
        public  Class2()
        {
            InitializeComponent();                 ----this has protection level      
                                                                                                     error       
        }//end constructor

        //event handelr for Save button
        private void saveButton_Click(object sender, EventArgs e)
        {
            //create dialog box enabling uer to save file
            SaveFileDialog fileChooser = new SaveFileDialog();
            DialogResult result = fileChooser.ShowDialog();
            string fileName; // name of file to save data

            fileChooser.CheckFileExists = false; // allow user to create file

            //exit event handler if user clicked "Cancel"
            if (result == DialogResult.Cancel)
                return;

            fileName = fileChooser.FileName; // get specified file name

            //show error if user specified invalid file
            if (fileName == "" || fileName == null)
                MessageBox.Show(" Invalid File Name", "Error",
                    MessageBoxButtons.OK, MessageBoxIcon.Error);
            else
            {
                //save file via filestream if user specified valid file
                try
                {
                    //open ifle with write access
                    output = new FileStream(fileName,
                        FileMode.OpenOrCreate, FileAccess.Write);

                    //sets file to where data is written
                    fileWriter = new StreamWriter(output);

                    //disable save button and enable enter button
                    saveButton.Enabled = false;
                    enterButton.Enabled = true;                 ---these two have protection
                                                                                                             error too
                }//end try

                //handle exception if ther is a problem opening the file
                catch (IOException)
                {
                    //notify user if file doesnot exist
                    MessageBox.Show("Error opening file", "error",
                      MessageBoxButtons.OK, MessageBoxIcon.Error);
                }//end catch
            }//end else
        }//end method saveButton_click

        //handler for enterButton_click
        private void enterButton_Click(object sender, EventArgs e)
        {
            //store Textbox values string array
            string[] values = GetTextBoxValues();

            //record containg textbox values to serialize
            Class1 class1 = new Class1();

            //determine whether textbox account field is empty
            if ( values [ ( int ) TextBoxIndices.VIDEOAUDIO ] != "" )
            {
                // store textbox values in record and serialize record
                try
                {
                    // get video and audio code value from textbox
                    int videoandaudioCode = Int32.Parse( values[ ( int ) TextBoxIndices.VIDEOAUDIO ] );

                    //determine wheterh videoandaudioCode is valid
                    if ( videoandaudioCode > 0 )
                    {
                        //store textbox fields in record
                        class1.Videoandaudio = videoandaudioCode;
                        class1.Title = values[ ( int ) TextBoxIndices.TITLE ];
                        class1.Category = values[ ( int ) TextBoxIndices.CATEGORY ];
                        class1.Certification = values[ ( int ) TextBoxIndices.CERTIFICATION ];
                        class1.Copies = Int32.Parse( values[ ( int ) TextBoxIndices.COPIES ]);
                    }//end if
                    else{
                        //notify user if invalid video and audio code
                        MessageBox.Show( " invalid code ", "error",
                            MessageBoxButtons.OK, MessageBoxIcon.Error ) ;
                    }//end else
                }//endtry
                //notify user if error occurs in seialization
                catch ( IOException )
                {
                    MessageBox.Show( "error writing to file" , "error",
                        MessageBoxButtons.OK, MessageBoxIcon.Error );
                }//end catch
                //notify user if eror occurs regarding parameter format
                catch ( FormatException ) 
                {
                    MessageBox.Show( "invalid format", "error",
                        MessageBoxButtons.OK, MessageBoxIcon.Error );
                }//end catch
            }//end if

            ClearTextBoxes(); //clear textbox values
        }//end method enter button_ click

        //handler for exitButton Click
        private void exitButton_Click(object sender, EventArgs e)
        {
            //dtermine wheteher file exists
            if (output != null)
            {
                try
                {
                    fileWriter.Close(); //close streamwriter
                    output.Close(); //close file

                }// end try
                //notify user of error closing file
                catch (IOException)
                {
                    MessageBox.Show(" cannot close file", "error",
                        MessageBoxButtons.OK, MessageBoxIcon.Error);
                }//end catch
            }//end if

            Application.Exit();
        }//end method
    }// end class
}

i based this code from my book for my project theyre pretty the same except for the names...now before i put the code for the class2 this program were running good...on the class2 there are errors saying "unaccessible due to protection level"
and the underlined words are InitializeComponent(); ,saveButton.Enabled = false; and
enterButton.Enabled



Code:

............. public  Class2()
        {
            InitializeComponent();                 ----this has protection level      
                                                                                                     error       
        }//end constructor

        //event handelr for Save button
        private void saveButton_Click(object sender, EventArgs e)
        {
            //create dialog box enabling uer to save file
            SaveFileDialog fileChooser = new SaveFileDialog();
            DialogResult result = fileChooser.ShowDialog();
            string fileName; // name of file to save data

            fileChooser.CheckFileExists = false; // allow user to create file

            //exit event handler if user clicked "Cancel"
            if (result == DialogResult.Cancel)
                return;

            fileName = fileChooser.FileName; // get specified file name

            //show error if user specified invalid file
            if (fileName == "" || fileName == null)
                MessageBox.Show(" Invalid File Name", "Error",
                    MessageBoxButtons.OK, MessageBoxIcon.Error);
            else
            {
                //save file via filestream if user specified valid file
                try
                {
                    //open ifle with write access
                    output = new FileStream(fileName,
                        FileMode.OpenOrCreate, FileAccess.Write);

                    //sets file to where data is written
                    fileWriter = new StreamWriter(output);

                    //disable save button and enable enter button
                    saveButton.Enabled = false;
                    enterButton.Enabled = true;                 ---these two have protection
                                                                                                             error too
                }//end try


.................

i think form1 has something to do with this with the word "protective int"
iam not sure
can someone explain why is this happen
thx

[njr1489]

I didn't proofread your code, but you are asking on how the protected keyword is stopping your program. I believe anything under protected can only be reached within its class and its inherited members.