public CustomExpressionView(IHostResourceProvider hostResources, PropertyViewModel viewModel)
: base(hostResources, viewModel, Properties.Resources.CustomExpression, "pe-custom-expression-32")
{
Frame = new CGRect(CGPoint.Empty, new CGSize(250, 80));
Type vmType = viewModel.GetType();
PropertyInfo previewCustomExpressionPropertyInfo = vmType.GetProperty(PreviewCustomExpressionString);
previewCustomExpressionPropertyInfo.SetValue(viewModel, string.Empty);
PropertyInfo customExpressionPropertyInfo = vmType.GetProperty(CustomExpressionPropertyString);
var value = customExpressionPropertyInfo.GetValue(viewModel);
NSControl editorControl = null;
PropertyInfo customAutocompleteItemsPropertyInfo = vmType.GetProperty(AutocompleteItemsString);
if (customAutocompleteItemsPropertyInfo.GetValue(viewModel) is ObservableCollectionEx <string> values)
{
if (values != null && values.Count > 0)
{
editorControl = new AutocompleteComboBox(hostResources, viewModel, values, previewCustomExpressionPropertyInfo)
{
AccessibilityEnabled = true,
AccessibilityTitle = Properties.Resources.AccessibilityCustomExpressionCombobox,
}
}
;
}
if (editorControl == null)
{
editorControl = new NSTextField {
AccessibilityEnabled = true,
AccessibilityTitle = Properties.Resources.AccessibilityCustomExpressionEditControl,
}
}
;
editorControl.TranslatesAutoresizingMaskIntoConstraints = false;
editorControl.StringValue = (string)value ?? string.Empty;
editorControl.Activated += (sender, e) => {
PopOver.CloseOnEnter = true;
customExpressionPropertyInfo.SetValue(viewModel, editorControl.StringValue);
};
AddSubview(editorControl);
this.AddConstraints(new[] {
NSLayoutConstraint.Create(editorControl, NSLayoutAttribute.Top, NSLayoutRelation.Equal, this, NSLayoutAttribute.Top, 1f, 37f),
NSLayoutConstraint.Create(editorControl, NSLayoutAttribute.Left, NSLayoutRelation.Equal, this, NSLayoutAttribute.Left, 1f, 38f),
NSLayoutConstraint.Create(editorControl, NSLayoutAttribute.Width, NSLayoutRelation.Equal, this, NSLayoutAttribute.Width, 1f, -57f),
NSLayoutConstraint.Create(editorControl, NSLayoutAttribute.Height, NSLayoutRelation.Equal, 1f, PropertyEditorControl.DefaultControlHeight),
});
}
}
}
public void LlenaCombo(ref AutocompleteComboBox combo, string SQL, string parametros = "", string ColValueMember = "", string ColDisplayMemeber = "", bool Autocompletar = false, string DescPrimerItem = "", string ValPrimerItem = "")
{
try
{
// Obtener datos desde la BD
DataTable dt = objlnFunciones.GetInfoQueryDt(SQL + " " + parametros);
// Revisar si se requiere agregar un primer item al ComboBox.
if (DescPrimerItem.Trim() != "")
{
// Asignar los valores del primer elemento a un Datarow
DataRow drPrimerItem = dt.NewRow();
// Revisar si el ValueMember y DisplayMember se establecen por defecto o bien en alguna columna especificada
if (ColValueMember == "")
{
drPrimerItem[0] = ValPrimerItem;
drPrimerItem[1] = DescPrimerItem;
}
else
{
drPrimerItem[ColValueMember] = ValPrimerItem;
drPrimerItem[ColDisplayMemeber] = DescPrimerItem;
}
// Insertar el Datarow al inicio del DataTable
dt.Rows.InsertAt(drPrimerItem, 0);
}
// Revisar si el ValueMember y DisplayMember se establecen por defecto o bien en alguna columna especificada
if (ColValueMember == "")
{
combo.ValueMember = dt.Columns[0].Caption;
combo.DisplayMember = dt.Columns[1].Caption;
}
else
{
combo.ValueMember = dt.Columns[ColValueMember].Caption;
combo.DisplayMember = dt.Columns[ColDisplayMemeber].Caption;
}
// Llenar el combo con la información
combo.DataSource = dt;
// Revisar si el combo tendrá la función de autocompletar
if (Autocompletar)
{
AutoCompleteStringCollection stringCol = new AutoCompleteStringCollection();
foreach (DataRow row in dt.Rows)
{
stringCol.Add(Convert.ToString(row[combo.DisplayMember]));
}
combo.AutoCompleteCustomSource = stringCol;
combo.AutoCompleteMode = AutoCompleteMode.Suggest;
combo.AutoCompleteSource = AutoCompleteSource.CustomSource;
}
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
