private void categoriaToolStripMenuItem_Click(object sender, EventArgs e) { Form frmCliente = this.MdiChildren.FirstOrDefault(i => i is FrmCategoria); frmCliente = new FrmCategoria() { MdiParent = this }; // test frmCliente.Focus(); }
private void categoriaToolStripMenuItem_Click(object sender, EventArgs e) { try { Form frmCliente = this.MdiChildren.FirstOrDefault(i => i is FrmCategoria); if (frmCliente == null) { frmCliente = new FrmCategoria() { MdiParent = this }; } frmCliente.Focus(); } catch (Exception) { MessageBox.Show("Falha na aplicação!", "", MessageBoxButtons.OK, MessageBoxIcon.Error); } }