Jump to content

Doesn't read from textbox and write to it correctly

- - - - -
Started by Gnomer, Oct 12 2011 12:12 PM

  • Please log in to reply
2 replies to this topic

#1
Gnomer
Posted 12 October 2011 - 12:12 PM

Gnomer

    Newbie

  • Members
  • Pip
  • 4 posts
I write a letter or number to texbox. When I press button it's must to add element from textbox to list. But when I want to show my array in textbox it returns numbers instead of letters. And I don't know why. Here my form code. All methods from class Arraylist(my own class) work correctly.(I tested it in console app.)


#pragma once

#include "stdafx.h"

#include "ATD.h"

namespace Lab3formm {


	using namespace System;

	using namespace System::ComponentModel;

	using namespace System::Collections;

	using namespace System::Windows::Forms;

	using namespace System::Data;

	using namespace System::Drawing;


	/// <summary>

	/// Summary for Form1

	/// </summary>

	public ref class Form1 : public System::Windows::Forms::Form

	{

	public:

	     Arraylist *x;

		Arraylist *y;

		Form1(void)

		{

			InitializeComponent();

			//

			x=new Arraylist();

			y=new Arraylist();

			//TODO: Add the constructor code here

			//

		}


	protected:

		/// <summary>

		/// Clean up any resources being used.

		/// </summary>

		~Form1()

		{

			if (components)

			{

				delete components;

			}

		}

	private: System::Windows::Forms::Label^  label1;

	protected: 

	private: System::Windows::Forms::Label^  label2;

	private: System::Windows::Forms::Button^  button1;

	private: System::Windows::Forms::Button^  button2;

	private: System::Windows::Forms::TextBox^  textBox1;

	private: System::Windows::Forms::TextBox^  textBox2;

	private: System::Windows::Forms::Button^  button3;

	private: System::Windows::Forms::TextBox^  textBox3;

	private: System::Windows::Forms::TextBox^  textBox4;

	private: System::Windows::Forms::Button^  button4;

	private: System::Windows::Forms::TextBox^  textBox5;

	private: System::Windows::Forms::Button^  button5;

	private: System::Windows::Forms::TextBox^  textBox6;

	private: System::Windows::Forms::Button^  button6;

	private: System::Windows::Forms::Button^  button7;

	private: System::Windows::Forms::TextBox^  textBox7;


	private:

		/// <summary>

		/// Required designer variable.

		/// </summary>

		System::ComponentModel::Container ^components;


#pragma region Windows Form Designer generated code

		/// <summary>

		/// Required method for Designer support - do not modify

		/// the contents of this method with the code editor.

		/// </summary>

		void InitializeComponent(void)

		{

		    this->label1 = (gcnew System::Windows::Forms::Label());

		    this->label2 = (gcnew System::Windows::Forms::Label());

		    this->button1 = (gcnew System::Windows::Forms::Button());

		    this->button2 = (gcnew System::Windows::Forms::Button());

		    this->textBox1 = (gcnew System::Windows::Forms::TextBox());

		    this->textBox2 = (gcnew System::Windows::Forms::TextBox());

		    this->button3 = (gcnew System::Windows::Forms::Button());

		    this->textBox3 = (gcnew System::Windows::Forms::TextBox());

		    this->textBox4 = (gcnew System::Windows::Forms::TextBox());

		    this->button4 = (gcnew System::Windows::Forms::Button());

		    this->textBox5 = (gcnew System::Windows::Forms::TextBox());

		    this->button5 = (gcnew System::Windows::Forms::Button());

		    this->textBox6 = (gcnew System::Windows::Forms::TextBox());

		    this->button6 = (gcnew System::Windows::Forms::Button());

		    this->button7 = (gcnew System::Windows::Forms::Button());

		    this->textBox7 = (gcnew System::Windows::Forms::TextBox());

		    this->SuspendLayout();

		    // 

		    // label1

		    // 

		    this->label1->AutoSize = true;

		    this->label1->Location = System::Drawing::Point(40, 13);

		    this->label1->Name = L"label1";

		    this->label1->Size = System::Drawing::Size(35, 13);

		    this->label1->TabIndex = 0;

		    this->label1->Text = L"label1";

		    // 

		    // label2

		    // 

		    this->label2->AutoSize = true;

		    this->label2->Location = System::Drawing::Point(152, 13);

		    this->label2->Name = L"label2";

		    this->label2->Size = System::Drawing::Size(35, 13);

		    this->label2->TabIndex = 1;

		    this->label2->Text = L"label2";

		    // 

		    // button1

		    // 

		    this->button1->Location = System::Drawing::Point(12, 62);

		    this->button1->Name = L"button1";

		    this->button1->Size = System::Drawing::Size(101, 23);

		    this->button1->TabIndex = 2;

		    this->button1->Text = L"add1";

		    this->button1->UseVisualStyleBackColor = true;

		    this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click);

		    // 

		    // button2

		    // 

		    this->button2->Location = System::Drawing::Point(119, 62);

		    this->button2->Name = L"button2";

		    this->button2->Size = System::Drawing::Size(100, 23);

		    this->button2->TabIndex = 3;

		    this->button2->Text = L"add2";

		    this->button2->UseVisualStyleBackColor = true;

		    this->button2->Click += gcnew System::EventHandler(this, &Form1::button2_Click);

		    // 

		    // textBox1

		    // 

		    this->textBox1->Location = System::Drawing::Point(13, 36);

		    this->textBox1->Name = L"textBox1";

		    this->textBox1->Size = System::Drawing::Size(100, 20);

		    this->textBox1->TabIndex = 4;

		    // 

		    // textBox2

		    // 

		    this->textBox2->Location = System::Drawing::Point(119, 36);

		    this->textBox2->Name = L"textBox2";

		    this->textBox2->Size = System::Drawing::Size(100, 20);

		    this->textBox2->TabIndex = 5;

		    // 

		    // button3

		    // 

		    this->button3->Location = System::Drawing::Point(12, 93);

		    this->button3->Name = L"button3";

		    this->button3->Size = System::Drawing::Size(101, 20);

		    this->button3->TabIndex = 6;

		    this->button3->Text = L"view1";

		    this->button3->UseVisualStyleBackColor = true;

		    this->button3->Click += gcnew System::EventHandler(this, &Form1::button3_Click);

		    // 

		    // textBox3

		    // 

		    this->textBox3->Location = System::Drawing::Point(119, 93);

		    this->textBox3->Name = L"textBox3";

		    this->textBox3->Size = System::Drawing::Size(206, 20);

		    this->textBox3->TabIndex = 7;

		    // 

		    // textBox4

		    // 

		    this->textBox4->Location = System::Drawing::Point(119, 122);

		    this->textBox4->Name = L"textBox4";

		    this->textBox4->Size = System::Drawing::Size(207, 20);

		    this->textBox4->TabIndex = 8;

		    // 

		    // button4

		    // 

		    this->button4->Location = System::Drawing::Point(13, 120);

		    this->button4->Name = L"button4";

		    this->button4->Size = System::Drawing::Size(99, 22);

		    this->button4->TabIndex = 9;

		    this->button4->Text = L"view2";

		    this->button4->UseVisualStyleBackColor = true;

		    this->button4->Click += gcnew System::EventHandler(this, &Form1::button4_Click);

		    // 

		    // textBox5

		    // 

		    this->textBox5->Location = System::Drawing::Point(226, 36);

		    this->textBox5->Name = L"textBox5";

		    this->textBox5->Size = System::Drawing::Size(100, 20);

		    this->textBox5->TabIndex = 10;

		    // 

		    // button5

		    // 

		    this->button5->Location = System::Drawing::Point(226, 62);

		    this->button5->Name = L"button5";

		    this->button5->Size = System::Drawing::Size(99, 23);

		    this->button5->TabIndex = 11;

		    this->button5->Text = L"a==b";

		    this->button5->UseVisualStyleBackColor = true;

		    this->button5->Click += gcnew System::EventHandler(this, &Form1::button5_Click);

		    // 

		    // textBox6

		    // 

		    this->textBox6->Location = System::Drawing::Point(120, 148);

		    this->textBox6->Name = L"textBox6";

		    this->textBox6->Size = System::Drawing::Size(206, 20);

		    this->textBox6->TabIndex = 12;

		    // 

		    // button6

		    // 

		    this->button6->Location = System::Drawing::Point(12, 146);

		    this->button6->Name = L"button6";

		    this->button6->Size = System::Drawing::Size(99, 22);

		    this->button6->TabIndex = 13;

		    this->button6->Text = L"a+b";

		    this->button6->UseVisualStyleBackColor = true;

		    this->button6->Click += gcnew System::EventHandler(this, &Form1::button6_Click);

		    // 

		    // button7

		    // 

		    this->button7->Location = System::Drawing::Point(12, 175);

		    this->button7->Name = L"button7";

		    this->button7->Size = System::Drawing::Size(99, 21);

		    this->button7->TabIndex = 14;

		    this->button7->Text = L"a--";

		    this->button7->UseVisualStyleBackColor = true;

		    this->button7->Click += gcnew System::EventHandler(this, &Form1::button7_Click);

		    // 

		    // textBox7

		    // 

		    this->textBox7->Location = System::Drawing::Point(120, 175);

		    this->textBox7->Name = L"textBox7";

		    this->textBox7->Size = System::Drawing::Size(206, 20);

		    this->textBox7->TabIndex = 15;

		    // 

		    // Form1

		    // 

		    this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);

		    this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;

		    this->ClientSize = System::Drawing::Size(334, 206);

		    this->Controls->Add(this->textBox7);

		    this->Controls->Add(this->button7);

		    this->Controls->Add(this->button6);

		    this->Controls->Add(this->textBox6);

		    this->Controls->Add(this->button5);

		    this->Controls->Add(this->textBox5);

		    this->Controls->Add(this->button4);

		    this->Controls->Add(this->textBox4);

		    this->Controls->Add(this->textBox3);

		    this->Controls->Add(this->button3);

		    this->Controls->Add(this->textBox2);

		    this->Controls->Add(this->textBox1);

		    this->Controls->Add(this->button2);

		    this->Controls->Add(this->button1);

		    this->Controls->Add(this->label2);

		    this->Controls->Add(this->label1);

		    this->Name = L"Form1";

		    this->Text = L"Form1";

		    this->ResumeLayout(false);

		    this->PerformLayout();


		}

#pragma endregion

	private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) {

			 x->Add(char::Parse(textBox1->Text));

		    }

private: System::Void button2_Click(System::Object^  sender, System::EventArgs^  e) {

		   y->Add(char::Parse(textBox2->Text));

	    }

private: System::Void button5_Click(System::Object^  sender, System::EventArgs^  e) {

		  if (x==y) textBox5->Text="True"; else textBox5->Text="False";

	    }

private: System::Void button3_Click(System::Object^  sender, System::EventArgs^  e) {

		   System::String^ s="";

		   for(int i=0;i<x->GetElemsCount();i++)

			  {s+=x->GetElemInd(i);

		   s+=" ";}

		  textBox3->Text=s;

	    }

private: System::Void button4_Click(System::Object^  sender, System::EventArgs^  e) {

		   System::String^ s="";

		   for(int i=0;i<y->GetElemsCount();i++)

			  {s+=y->GetElemInd(i);

		   s+=" ";}

		  textBox4->Text=s;

	    }

private: System::Void button6_Click(System::Object^  sender, System::EventArgs^  e) {

		   Arraylist c=*x+*y;

		   System::String^ s="";

		   for(int i=0;i<c.GetElemsCount();i++)

		   {

			  s+=c.GetElemInd(i);

			  s+=" ";

		   }

		   textBox6->Text=s;

	    }

private: System::Void button7_Click(System::Object^  sender, System::EventArgs^  e) {

		   x--;

		   System::String^ s="";

		   for(int i=0;i<x->GetElemsCount();i++)

		   {

			  s+=x->GetElemInd(i);

			  s+=" ";

		   }

		   textBox6->Text=s;

	    }

};

}
List contains array of char

class Arraylist

{

  char *a;

  .......

#2
Ancient Dragon
Posted 26 October 2011 - 05:22 AM

Ancient Dragon

    Programming Expert

  • Members
  • PipPipPipPipPipPip
  • 400 posts
>>x->GetElemInd(i);

What does GetElemInd() return? We have no clue from what you posted.
Visit Grandpa's Forums, a social networking forum, with family-oriented arcade games, blogs, discussion forums, and photo albums.

#3
kernelcoder
Posted 19 April 2012 - 08:54 PM

kernelcoder

    Programming Professional

  • Members
  • PipPipPipPipPip
  • 309 posts
  • Location:Dhaka
  • Programming Language:C, Java, C++, C#, Visual Basic .NET
  • Learning:Objective-C, PHP, Python, Delphi/Object Pascal
As I don't have your 'Arraylist' class so I use the 'ArrayList' class from .NET library. And I found that the problem is in "char::Parse" method. I was getting 'FormatException' exception. I used System::Char::Parse and it worked for me. Following is the code that worked for me. I did only change those part that I changed from your code.

// First I used 'ArrayList' class
ArrayList^ x;

ArrayList^ y;

Form1(void)

{

InitializeComponent();

//

x=gcnew ArrayList();

y=gcnew ArrayList();

//TODO: Add the constructor code here

//
//////////////////
}


// the events handlers to manupulate the characters
#pragma endregion

private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) {

x->Add(System::Char::Parse(textBox1->Text));

}

private: System::Void button2_Click(System::Object^  sender, System::EventArgs^  e) {

y->Add(System::Char::Parse(textBox2->Text));

}

private: System::Void button5_Click(System::Object^  sender, System::EventArgs^  e) {

if (x==y) textBox5->Text="True"; else textBox5->Text="False";

}

private: System::Void button3_Click(System::Object^  sender, System::EventArgs^  e) {

System::String^ s="";

for(int i=0;i<x->Count;i++)

{s+=x[i];

s+=" ";}

textBox3->Text=s;

}

private: System::Void button4_Click(System::Object^  sender, System::EventArgs^  e) {

System::String^ s="";

for(int i=0;i<y->Count;i++)

{s+=y[i];

s+=" ";}

textBox4->Text=s;

}

private: System::Void button6_Click(System::Object^  sender, System::EventArgs^  e) {

ArrayList^ c = gcnew ArrayList();
c->AddRange(x->ToArray());
c->AddRange(y->ToArray());

System::String^ s="";

for(int i=0;i<c->Count;i++)

{

s+=c[i];

s+=" ";

}

textBox6->Text=s;

}

private: System::Void button7_Click(System::Object^  sender, System::EventArgs^  e) {

x->RemoveAt(x->Count - 1);
System::String^ s="";
for(int i=0;i<x->Count;i++)
{

s+=x[i];

s+=" ";

}

textBox6->Text=s;

}

Back to Managed C++


1 user(s) are reading this topic

0 members, 1 guests, 0 anonymous users



  1. CODECALL Programming Forum
  2. → Software Development
  3. → C and C++
  4. → Managed C++
IPB skins by Skinbox