private void filed_changed(object sender, SelectionChangedEventArgs e)
{
var controlop = new ControlAndOperator();
var pinfo = field_cb.SelectedValue as PropertyInfo;
var ctlcontext = new FormItemContext(_type, pinfo);
controlop.InputControl = InputControlBuilder.CreateControl(ctlcontext);
if (pinfo.PropertyType.Name.Equals("string", StringComparison.OrdinalIgnoreCase))
{
controlop.UseStringOperator = true;
}
else
{
controlop.UseNumberOperator = true;
}
if (CreateControlCallback != null)
{
controlop = CreateControlCallback(ctlcontext, controlop);
}
_bindobject = Activator.CreateInstance(_type);
controlop.InputControl.DataContext = _bindobject;
input_br.Child = controlop.InputControl;
operator_cb.ItemsSource = null;
if (controlop.UseStringOperator)
{
operator_cb.ItemsSource = EnumNameValuePair.EnumToList(typeof(StringOperator));
}
else if (controlop.UseNumberOperator)
{
operator_cb.ItemsSource = EnumNameValuePair.EnumToList(typeof(NumberOperator));
}
operator_cb.SelectedIndex = 0;
if (pinfo.PropertyType.IsEnum)
{
operator_cb.IsEnabled = false;
}
else
{
operator_cb.IsEnabled = true;
}
}
public void RenderForm(object data, bool isreadonly)
{
DataContext = data;
var datatype = data.GetType();
if (InputControlBuilder == null)
{
InputControlBuilder = new ControlsBuilder();
}
root.Children.Clear();
_errlabels.Clear();
_editctls.Clear();
var props = datatype.GetProperties(BindingFlags.Instance | BindingFlags.Public | BindingFlags.GetProperty);
int rownum = 0;
for (int i = 0; i < props.Count(); i++)
{
var fieldcontext = new FormItemContext(data, datatype, props[i], ControlType.None);
// determine if create field
bool suggestion = true;
var attr0 = props[i].GetCustomAttribute(typeof(EditableAttribute)) as EditableAttribute;
var attr1 = props[i].GetCustomAttribute(typeof(KeyAttribute)) as KeyAttribute;
if (attr1 != null ||
(attr0 != null && !attr0.AllowEdit))
{
suggestion = false;
}
if (DetermineFieldCreationCallback != null)
{
suggestion = DetermineFieldCreationCallback(fieldcontext, suggestion);
}
if (!suggestion)
{
continue;
}
// add row
root.RowDefinitions.Add(new RowDefinition
{
Height = new GridLength(0, GridUnitType.Auto)
});
var rowcontainer = new StackPanel();
rowcontainer.Orientation = Orientation.Horizontal;
Grid.SetRow(rowcontainer, rownum);
root.Children.Add(rowcontainer);
// label
var lbcontext = new FormItemContext(data, datatype, props[i], ControlType.Label);
Label label = new Label();
var attr = props[i].GetCustomAttribute(typeof(DisplayAttribute)) as DisplayAttribute;
if (attr != null)
{
if (!string.IsNullOrEmpty(attr.Name))
{
label.Content = attr.Name;
}
if (!string.IsNullOrEmpty(attr.Description))
{
label.ToolTip = attr.Description;
}
}
if (label.Content == null)
{
label.Content = props[i].Name;
}
StyleHelper.ApplyStyle(label);
var labelctl = OnCreateControl(lbcontext, label);
rowcontainer.Children.Add(labelctl);
// editable
var editcontext = new FormItemContext(data, datatype, props[i], ControlType.Editable);
var editctl = InputControlBuilder.CreateControl(editcontext);
editctl = OnCreateControl(editcontext, editctl);
if (isreadonly)
{
editctl.IsEnabled = false;
}
rowcontainer.Children.Add(editctl);
_editctls.Add(editctl);
// error label
var errtb = new TextBlock();
if (!isreadonly)
{
errtb.Tag = props[i].Name;
var errbinding = new Binding
{
Source = editctl,
Path = CustomValidation.GetValidationMsgBindingPath(editctl)
};
errtb.SetBinding(TextBlock.TextProperty, errbinding);
StyleHelper.ApplyStyle(errtb, FormControlConstrants.VALIDATION_ERROR_STYLE);
rowcontainer.Children.Add(errtb);
_errlabels.Add(errtb);
}
if (LayoutControlCallback != null)
{
LayoutControlCallback(this.root, label, editctl, errtb);
}
rownum++;
}
if (isreadonly)
{
ConfirmButton.Visibility = Visibility.Collapsed;
}
}
