El código en VB
Public
Class Form1
Private Sub Form1_Load(ByVal
sender As System.Object,
ByVal e As
System.EventArgs) Handles
MyBase.Load
Me.GenerarColumnas()
End Sub
Private ArregloDGV(0 To
3) As DataGridViewColumn
'Arreglo que contendrá la definición de las columnas.
Private Sub GenerarColumnas()
ArregloDGV(0) = New DataGridViewTextBoxColumn()
ArregloDGV(0).HeaderText = "Articulo"
ArregloDGV(0).Name = "colDesc"
ArregloDGV(0).Width = 210
ArregloDGV(1) = New DataGridViewTextBoxColumn()
ArregloDGV(1).HeaderText = "Cantidad"
ArregloDGV(1).Name = "colCant"
ArregloDGV(1).Width = 80
ArregloDGV(2) = New DataGridViewTextBoxColumn()
ArregloDGV(2).HeaderText = "$ Valor"
ArregloDGV(2).Name = "colValor"
ArregloDGV(2).Width = 80
ArregloDGV(3) = New DataGridViewTextBoxColumn()
ArregloDGV(3).HeaderText = "$ Total"
ArregloDGV(3).Name = "colTotal"
ArregloDGV(3).Width = 80
DataGridView1.Columns.AddRange(ArregloDGV)
End Sub
Private Sub Agregar_Click(ByVal
sender As System.Object,
ByVal e As
System.EventArgs) Handles
Agregar.Click
If
NombreTxT.Text.Trim() <> String.Empty AndAlso _
cantidadTxT.Text.Trim() <> String.Empty AndAlso
_
valorTxT.Text.Trim() <> String.Empty AndAlso
_
IsNumeric(cantidadTxT.Text.Trim()) AndAlso _
IsNumeric(valorTxT.Text.Trim()) Then
Dim
total As Double
= Val(cantidadTxT.Text.Trim()) * Val(valorTxT.Text.Trim())
Dim
arrDatos() As Object
= {NombreTxT.Text.Trim(), Val(cantidadTxT.Text.Trim()), _
valorTxT.Text.Trim(), total}
DataGridView1.Rows.Add(arrDatos)
End If
End Sub
End
Class
El código en 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;
namespace
WindowsFormsApplication1
{
public partial class Form1 : Form
{
public
Form1()
{
InitializeComponent();
}
private
DataGridViewColumn[] ArregloDGV = new DataGridViewColumn[4];
int
cantidad =0;
int
valor = 0;
private
void Form1_Load(object
sender, EventArgs e)
{
this.GenerarColumnas();
}
private void
GenerarColumnas()
{
ArregloDGV[0] = new DataGridViewTextBoxColumn();
ArregloDGV[0].HeaderText = "Articulo";
ArregloDGV[0].Name = "colDesc";
ArregloDGV[0].Width = 210;
ArregloDGV[1] = new DataGridViewTextBoxColumn();
ArregloDGV[1].HeaderText = "Cantidad";
ArregloDGV[1].Name = "colCant";
ArregloDGV[1].Width = 80;
ArregloDGV[2] = new DataGridViewTextBoxColumn();
ArregloDGV[2].HeaderText = "$ Valor";
ArregloDGV[2].Name = "colValor";
ArregloDGV[2].Width = 80;
ArregloDGV[3] = new DataGridViewTextBoxColumn();
ArregloDGV[3].HeaderText = "$ Total";
ArregloDGV[3].Name = "colTotal";
ArregloDGV[3].Width = 80;
dataGridView1.Columns.AddRange(ArregloDGV);
}
private
void Agregar_Click(object
sender, EventArgs e)
{
if
(string.IsNullOrEmpty(NombreTxT.Text.Trim()) ||
string.IsNullOrEmpty(cantidadTxT.Text.Trim())
||
string.IsNullOrEmpty(valorTxT.Text.Trim()) ||
(!int.TryParse(cantidadTxT.Text.Trim(), out cantidad)) ||
(!int.TryParse(valorTxT.Text.Trim(), out valor)))
{
return;
}
double
total = cantidad * valor;
object[] arrDatos = {
NombreTxT.Text.Trim(),
Convert.ToInt32(cantidadTxT.Text.Trim()),
valorTxT.Text.Trim(),
total
};
dataGridView1.Rows.Add(arrDatos);
}
}
}