private void BtEliminar_Click(object sender, EventArgs e)
{
try
{
DataBaseControl DBControl = new DataBaseControl(DataBaseControl.cPath, "ProjectDataBase.mdf");
string[] para = { "@user" };
string[] ele = { TxtUserName.Text };
if (DBControl.Buscar("Select * from [Registro] where [materia]= @user", para, ele))
{
MessageBox.Show("Esta materia actualmente figura en una seccion, imposible eliminar");
TxtUserName.Clear();
return;
}
else
{
if (DBControl.Eliminar("Delete from [Materias] where [Clave] = @user", para, ele))
{
MessageBox.Show("Materia eliminado con exito");
LVUsuarios.Clear();
}
else
{
MessageBox.Show("Error al eliminar Materia");
}
}
}
catch (Exception) { MessageBox.Show("Por favor, verificar los datos"); }
}
private void TxtUserName_TextChanged(object sender, EventArgs e)
{
if (TxtUserName.Text.Length > 0)
{
DataBaseControl DBControl = new DataBaseControl(DataBaseControl.cPath, "ProjectDataBase.mdf");
LVUsuarios.Clear();
string[] _parameters = { "@userN", "@Materia" };
string[] _element = { TxtUserName.Text, TxtMateria.Text };
foreach (string[] item in DBControl.Buscar("Select [Materia] from [Registro] where [Alumno] = @userN ", _parameters, _element, 1))
{
foreach (var it in item)
{
LVUsuarios.Items.Add(new ListViewItem(it));
}
}
}
}
private void TxtUserName_TextChanged(object sender, EventArgs e)
{
if (TxtUserName.Text.Length > 0)
{
DataBaseControl DBControl = new DataBaseControl(DataBaseControl.cPath, "ProjectDataBase.mdf");
LVUsuarios.Clear();
string[] _parameters = { "@userN" };
string[] _element = { TxtUserName.Text };
string[] _returned = { "UserName" };
foreach (string[] item in DBControl.Buscar("Select [ID] from [Maestros] where [ID] like '%' + @userN + '%'", _parameters, _element, 1))
{
foreach (var it in item)
{
LVUsuarios.Items.Add(new ListViewItem(it));
}
}
}
}
private void BtEliminar_Click(object sender, EventArgs e)
{
try
{
DataBaseControl DBControl = new DataBaseControl(DataBaseControl.cPath, "ProjectDataBase.mdf");
string[] para = { "@user" };
string[] ele = { TxtUserName.Text };
if (DBControl.Eliminar("Delete from Maestros where [ID] = @user", para, ele))
{
MessageBox.Show("Maestro eliminado con exito");
LVUsuarios.Clear();
}
else
{
MessageBox.Show("Error al eliminar maestro");
}
}
catch (Exception) { MessageBox.Show("Por favor, verificar los datos"); }
}
private void BtEliminar_Click(object sender, EventArgs e)
{
try
{
DataBaseControl DBControl = new DataBaseControl(DataBaseControl.cPath, "ProjectDataBase.mdf");
string[] _parameters = { "@userN", "@Materia" };
string[] _element = { TxtUserName.Text, TxtMateria.Text };
if (DBControl.Eliminar("Delete from [Registro] where [Alumno] = @userN and [Materia] = @Materia ", _parameters, _element))
{
MessageBox.Show("Registro eliminado con exito");
LVUsuarios.Clear();
}
else
{
MessageBox.Show("Error al eliminar usuario");
}
}
catch (Exception) { MessageBox.Show("Por favor, verificar los datos"); }
}