06B - INTRODUCAO_ Programacao_Visual_C#

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Programação com Visual C#
Introdução
Prof. Sérgio Fred
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Aplicação Visual
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Estrutura de GUI
Panel
Button
Form
GUI Internal structure
containers
Form
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Panel
Label
Panel
Button
Label
outros …
Definir Projeto
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Novo Projeto
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Referenciar API’s
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Adicionar Referências .NET
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Adicionar Referências .NET / 
Implementar Form
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Estrutura de um programa
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.IO;
using System.Drawing;
using System.Windows.Forms;
namespace ProjetoConsole5namespace ProjetoConsole5
{
class Program : Form
{
static void Main(string[] args)
{
Application.Run(new Program());
}
}
}
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Execução do programa
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Windows Application
anular o console
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Declaração de Objetos Visuais
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.IO;
using System.Drawing;
using System.Windows.Forms;
namespace ProjetoConsole5namespace ProjetoConsole5
{ class Program : Form
{
private Button button1;
private TextBox textbox1;
private ListBox listbox1;
static void Main(string[] args)
{
Application.Run(new Program());
}
} } 12
Construtor
...
class Program : Form
{
private Button button1;
private TextBox textbox1;
private ListBox listbox1;
private Program() {
inicializeComponentes(); 
}
private void inicializeComponentes()
{
listbox1= new ListBox();
textbox1 = new TextBox();
button1 = new Button();
Controls.AddRange(new Control[] {listbox,1 button1, textbox1}); 
}
static void Main(string[] args)
{
Application.Run(new Program());
}
} }
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private void inicializeComponentes()
{
button1 = new Button();
textbox1 = new TextBox();
listbox1 = new ListBox();
// button1
button1.Name ="button1";
button1.Text = "Executar ação";
button1.Location = new Point(200, 40);
button1.Size = new Size(200, 20);
//textbox1
Construtor 
private Program() {
}
inicializeComponentes(); 
//textbox1
textbox1.Name = "textbox1";
textbox1.Text = "nada aqui...";
textbox1.Location = new Point(200, 80);
textbox1.Size = new Size(200, 30);
textbox1.Multiline = true;
ClientSize = new Size(500, 500);
this.CenterToScreen();
Controls.AddRange(new Control[]{button1,
textbox1,listbox1});
this.Name = "Form1";
this.Text = "Sistema de Teste"; 
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Atributos do Form
//Atributos do form1
ClientSize = new Size(500, 500);
StartPosition = FormStartPosition.CenterScreen;
Controls.Add(button1);
Controls.Add(listbox1);
Controls.Add(textbox1);
//Controls.AddRange(new Control[] {button1,textbox1,listbox1});
this.Name = "Form1";
this.Text = "Sistema de Teste"; 
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this.Text = "Sistema de Teste"; 
System.Drawing.Point
• Representação para 2-D point
• Constructor
– Point(int x, int y)
• Propriedades
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• Propriedades
– X – get/set of X coordinate
– Y – get/set of Y coordinate
System.Drawing.Size
• Estrutura de largura e altura do objeto
• Construtor
– Size(int width, int height)
• Propriedades
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• Propriedades
– Width – get/set width
– Height – get/set height
Windows Applications
• Depois, atribui propriedades ao label
public class GreetingForm : Form {
Label greetingLabel;
Button cancelButton;
…
}
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• Depois, atribui propriedades ao label
greetingLabel = new Label();
greetingLabel.Location = new Point(16, 24);
greetingLabel.Text = "Hello, World";
greetingLabel.Size = new Size(216, 24);
greetingLabel.ForeColor = Color.Black;
Evento para Botão
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Adicionar objetos no Form
• Adicionar controles no Form
this.Controls.Add(cancelButton);
this.Controls.Add(greetingLabel);
// ou
Controls.AddRange(new Control[] {button1,textbox1,listbox1});
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• Método para encerrar aplicação
protected void cancelButton_Click(
object sender, EventArgs e) {
Application.Exit();
} 
Popular um ListBox
• Adicionar valores no ListBox
• Converter para String com ToString()
for(int i = 0; i < 50; i++) {
listBox1.Items.Add("Item " + i.ToString());
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listBox1.Items.Add("Item " + i.ToString());
}
Saída de mensagem
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DataGridView
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Colunas no DataGridView
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Listar Elementos
public partial class Form1 : Form
{
int[,] vet = new int[100,100];
int C, L;
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
int Lin = Convert.ToInt32(textBox2.Text);
int Col = Convert.ToInt32(textBox3.Text);
textBox1.Clear();
for (L = 0; L < Lin; ++L)
{
for (C = 0; C < Col; ++C)
{ 
DataGridViewCell celula = dataGridView1[C, L];
vet[L, C] = Convert.ToInt32(celula.Value);
textBox1.AppendText("Posição ["+L+","+C+"]..."+Convert.ToString(vet[L, C]) + "\n");
}
}
}
}
}
Preencher Matriz com Dados Externos
private void button2_Click(object sender, EventArgs e)
{
textBox1.Clear();
for (int L=0; L < 2; L++)
{
for (int C = 0; C < 3; C++)for (int C = 0; C < 3; C++)
{
DataGridViewCell celula = dataGridView1[C, L];
matriz2[L, C] = Convert.ToInt32(celula.Value);
textBox1.AppendText("Posição[" + L + "," + C + "]" + Convert.ToString(matriz2[L, C]) + "\n");
}
} 
}
Preencher dataViewGrid
private void button3_Click(object sender, EventArgs e)
{
for (L = 0; L < 2; L++)
{
for (C = 0; C < 2; C++)
{
DataGridViewCell celula = dataGridView2[C,L];
A[L,C] = Convert.ToInt32(celula.Value); 
textBox2.AppendText("["+Convert.ToString(A[L,C])+"]"+"\t");
}
}
}
}
public partial class Form1 : Form
{
int L, C;
int[,] A = new int[3,5];
int[,] S = new int[3,5]
public Form1()
{
InitializeComponent();
dataGridView2.Enabled = true;
}
private void button2_Click(object sender, EventArgs e)
{
//gera vetor de soma, linha-a-linha
for (L = 0; L < 3; L++)
{
for (C = 0; C < 5; C++)
}
for (C = 0; C < 5; C++)
{
S[L,C] = A[L,C];
textBox1.AppendText(Convert.ToString(S[L,C] + "\t"));
}
}
//imprime o vetor do somatório
dataGridView1.RowCount = S.Length;
dataGridView1.ColumnCount = S.Length;
for (int L = 0; L < 3; L++)
{
for (int C = 0; C < 5; C++)
{
dataGridView1.Rows[L].Cells[C].Value = Convert.ToString(S[L,C]);
}
Listar Elementos na Matriz
TreeView
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TreeView
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TreeView
treeView1.SelectedNode.FullPath.ToString ();
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treeView1.CheckBoxes = true;
using System;
using System.Drawing;
using System.Windows.Forms;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
TreeNode tNode ;
tNode = treeView1.Nodes.Add("Websites");
treeView1.Nodes[0].Nodes.Add("Net-informations.com");
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treeView1.Nodes[0].Nodes.Add("Net-informations.com");
treeView1.Nodes[0].Nodes[0].Nodes.Add("CLR");
treeView1.Nodes[0].Nodes.Add("Vb.net-informations.com");
treeView1.Nodes[0].Nodes[1].Nodes.Add("String Tutorial");
treeView1.Nodes[0].Nodes[1].Nodes.Add("Excel Tutorial");
treeView1.Nodes[0].Nodes.Add("Csharp.net-informations.com");
treeView1.Nodes[0].Nodes[2].Nodes.Add("ADO.NET");
treeView1.Nodes[0].Nodes[2].Nodes[0].Nodes.Add("Dataset");
}
private void button1_Click(object sender, EventArgs e)
{
MessageBox.Show(treeView1.SelectedNode.FullPath.ToString ());
}
}
}
TreeView
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TreeView.Nodes
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Gerar gráfico com 
Chart, 
Visual Studio
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;
namespace WindowsFormsApplication3
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
int[] vetorX = {2,3,4};
int[] vetorY = { 1, 2, 5 };
chart1.Series["Series1"].Points.DataBindXY(vetorX, vetorY);
}
}
}
Continua com outros métodos ...
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