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WebFormRAM.aspx.cs
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WebFormRAM.aspx.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using ClassSQLServer;
namespace WebInventarioParte1
{
public partial class WebFormRAM : System.Web.UI.Page
{
UsaSQLServer objRam;
protected void Page_Load(object sender, EventArgs e)
{
if (IsPostBack)
{
objRam = (UsaSQLServer)Session["sesion"];
}
else
{
objRam = new UsaSQLServer();
objRam.cadenaConexion = @"Data Source=DESKTOP-LUHL6NJ; " +
"Initial Catalog=BD_InventarioPWA; " + "Integrated Security=true";
Session["sesion"] = objRam;
CargarTipo();
CargarRam();
}
}
public void CargarTipo()
{
SqlDataReader container = null;
SqlConnection conexion = null;
string msj = "";
conexion = objRam.AbrirConexion(ref msj);
container = objRam.EjecutaConsultaDR(conexion, "select id_tipoRam,tipo from TipoRam;", ref msj);
DropDownList1.Items.Clear();
if (container != null)
{
while (container.Read())
{
DropDownList1.Items.Add(
new ListItem(container[1].ToString(), container[0].ToString()));
}
conexion.Close();
conexion.Dispose();
}
}
public void CargarRam()
{
SqlDataReader container = null;
SqlConnection conexion = null;
string msj = "";
conexion = objRam.AbrirConexion(ref msj);
container = objRam.EjecutaConsultaDR(conexion, "select id_Ram,capacidad,velocidad,tipo from RAM " +
"inner join TipoRam on RAM.f_TipoR=TipoRam.id_tipoRam;", ref msj);
DropDownList2.Items.Clear();
if (container != null)
{
while (container.Read())
{
DropDownList2.Items.Add(
new ListItem(container[1].ToString()+" "+container[2].ToString()+" " +container[3].ToString()
, container[0].ToString()));
}
conexion.Close();
conexion.Dispose();
}
}
protected void Button1_Click(object sender, EventArgs e)
{
string msj = "";
SqlConnection conexion;
List<SqlParameter> lista = new List<SqlParameter>();
SqlParameter temp = null;
conexion = objRam.AbrirConexion(ref msj);
string sentencia = "insert into RAM(Capacidad,Velocidad,F_tipoR) values(@cap,@vel,@tipo);";
temp = new SqlParameter()
{
ParameterName = "cap",
SqlDbType = SqlDbType.SmallInt,
Value = txtCapacidad.Text
};
lista.Add(temp);
temp = new SqlParameter()
{
ParameterName = "vel",
SqlDbType = SqlDbType.VarChar,
Size = 15,
Value = txtVelocidad.Text
};
lista.Add(temp);
temp = new SqlParameter()
{
ParameterName = "tipo",
SqlDbType = SqlDbType.Int,
Value = int.Parse(DropDownList1.SelectedValue)
};
lista.Add(temp);
Boolean salida = objRam.ModificarBDParametros(sentencia, conexion, ref msj, lista);
if (salida)
{
txtResultado.Text = msj;
}
txtCapacidad.Text = "";
txtVelocidad.Text = "";
CargarRam();
}
protected void btnModificar_Click(object sender, EventArgs e)
{
string msj = "";
SqlConnection conexion;
List<SqlParameter> lista = new List<SqlParameter>();
SqlParameter temp = null;
conexion = objRam.AbrirConexion(ref msj);
string sentencia = "Update RAM set Capacidad=@cap,Velocidad=@vel,F_TipoR=@tipo where id_RAM=@id;";
temp = new SqlParameter()
{
ParameterName = "cap",
SqlDbType = SqlDbType.SmallInt,
Value = txtCapacidad.Text
};
lista.Add(temp);
temp = new SqlParameter()
{
ParameterName = "vel",
SqlDbType = SqlDbType.VarChar,
Size = 15,
Value = txtVelocidad.Text
};
lista.Add(temp);
temp = new SqlParameter()
{
ParameterName = "tipo",
SqlDbType = SqlDbType.Int,
Value = DropDownList1.Items[DropDownList1.SelectedIndex].Value
};
lista.Add(temp);
temp = new SqlParameter()
{
ParameterName = "id",
SqlDbType = SqlDbType.Int,
Value = DropDownList2.Items[DropDownList2.SelectedIndex].Value
};
lista.Add(temp);
Boolean salida = objRam.ModificarBDParametros(sentencia, conexion, ref msj, lista);
if (salida)
{
txtResultado.Text = msj;
}
else
txtResultado.Text = msj;
txtCapacidad.Text = "";
txtVelocidad.Text = "";
CargarRam();
}
protected void DropDownList2_SelectedIndexChanged(object sender, EventArgs e)
{
SqlDataReader container = null;
SqlConnection conexion = null;
string msj = "";
int id = int.Parse(DropDownList2.Items[DropDownList2.SelectedIndex].Value);
conexion = objRam.AbrirConexion(ref msj);
container = objRam.EjecutaConsultaDR(conexion, "select Capacidad,Velocidad from RAM where id_Ram="+id+";", ref msj);
if (container != null)
{
container.Read();
txtCapacidad.Text = container[0].ToString();
txtVelocidad.Text = container[1].ToString();
}
else
{
txtResultado.Text = msj;
}
}
protected void btnEliminar_Click(object sender, EventArgs e)
{
SqlConnection conexion = null;
string msj = "";
int id = int.Parse(DropDownList2.Items[DropDownList2.SelectedIndex].Value);
conexion = objRam.AbrirConexion(ref msj);
Boolean resul = objRam.ModificarBD("delete from RAM where id_Ram=" + id + ";", conexion, ref msj);
if (resul)
{
txtResultado.Text = "Gabinete eliminado";
}
else
txtResultado.Text = msj;
txtCapacidad.Text = "";
txtVelocidad.Text = "";
CargarRam();
}
protected void btnMostrar_Click1(object sender, EventArgs e)
{
string msj = "";
SqlConnection conexion;
SqlDataReader container = null;
DataTable datos = null;
conexion = objRam.AbrirConexion(ref msj);
container = objRam.EjecutaConsultaDR(conexion, "select capacidad,velocidad,tipo from RAM " +
"inner join TipoRam on RAM.f_TipoR=TipoRam.id_tipoRam;", ref msj);
if (container != null)
{
datos = new DataTable();
datos.Load(container);
GridView1.DataSource = datos;
GridView1.DataBind();
}
else
txtResultado.Text = msj;
}
}
}