private static BindingMode SetBindingMode(GridColumnBase column, PropertyPath path)
{
var isModeSet = false;
var bindingMode = BindingMode.TwoWay;
PropertyDescriptorCollection itemproperties = null;
if (column.GridBase != null)
{
if (column.GridBase is SfTreeGrid)
{
var SfTreeGrid = (column.GridBase as SfTreeGrid);
if (SfTreeGrid.View != null)
{
itemproperties = SfTreeGrid.View.GetItemProperties();
}
}
else
{
var sfDataGrid = (column.GridBase as SfDataGrid);
if (sfDataGrid.View != null)
{
itemproperties = sfDataGrid.View.GetItemProperties();
}
}
}
if (itemproperties != null)
{
var propDesc = itemproperties.GetPropertyDescriptor(column.MappingName);
if (propDesc != null)
{
#if WPF
bindingMode = propDesc.IsReadOnly ? BindingMode.OneWay : BindingMode.TwoWay;
#else
bindingMode = (propDesc.SetMethod == null || !propDesc.SetMethod.IsPublic) ? BindingMode.OneWay : BindingMode.TwoWay;
#endif
isModeSet = true;
}
}
//While implementing the IDataErroInfo, will generate Error read only property. Based on this property created a column when AutoGenerateColumn is True.
//so that mode will be reset based on AllowEditing property of that Error column.
if (!isModeSet)
{
if (column.AllowEditing && column.CanEditCell())
{
bindingMode = BindingMode.TwoWay;
}
else
{
bindingMode = BindingMode.OneWay;
}
isModeSet = true;
}
return(bindingMode);
}
internal static Binding CreateEditableBinding(this string mappingName, GridColumnBase column, bool enableErrorNotification)
{
bool canBindTwoWay = column != null?column.CanEditCell() : true;
var binding = new Binding
{
Path = new PropertyPath(mappingName),
Mode = canBindTwoWay ? BindingMode.TwoWay : BindingMode.OneWay,
#if WPF
NotifyOnValidationError = enableErrorNotification,
ValidatesOnDataErrors = enableErrorNotification,
#if !SyncfusionFramework4_0
ValidatesOnNotifyDataErrors = enableErrorNotification
#endif
#endif
};
return(binding);
}
private static Binding CreateEditBindingBase(this Binding source, bool enableErrorNotification, GridColumnBase column)
{
//WPF - 18160 - If AllowEditing of a column is True, mode can be determined by allowediting and
//CanEditCell() which return true for all columns other than GridImageColumn and GridHyperLinkColumn
bool canBindTwoWay = column.CanEditCell();
UpdateSourceTrigger updateSourceTrigger = column.isvaluebindingcreated ? column.UpdateTrigger : source.UpdateSourceTrigger;
var binding = new Binding
{
Converter = (source.Converter is CultureFormatConverter || source.Converter is DisplayMemberConverter) ? null : source.Converter,
ConverterParameter = (source.Converter is CultureFormatConverter || source.Converter is DisplayMemberConverter) ? null : source.ConverterParameter,
Path = source.Path,
UpdateSourceTrigger =
updateSourceTrigger == UpdateSourceTrigger.PropertyChanged
? UpdateSourceTrigger.Explicit
: updateSourceTrigger,
#if WPF
BindsDirectlyToSource = source.BindsDirectlyToSource,
ConverterCulture = source.ConverterCulture,
FallbackValue = source.FallbackValue,
NotifyOnValidationError = enableErrorNotification,
StringFormat = source.StringFormat,
TargetNullValue = source.TargetNullValue,
ValidatesOnDataErrors = enableErrorNotification,
ValidatesOnExceptions = source.ValidatesOnExceptions,
#if !SyncfusionFramework4_0
ValidatesOnNotifyDataErrors = enableErrorNotification,
Delay = source.Delay,
#endif
AsyncState = source.AsyncState,
BindingGroupName = source.BindingGroupName,
IsAsync = source.IsAsync,
NotifyOnSourceUpdated = source.NotifyOnSourceUpdated,
NotifyOnTargetUpdated = source.NotifyOnTargetUpdated,
UpdateSourceExceptionFilter = source.UpdateSourceExceptionFilter,
XPath = source.XPath
#endif
};
if (column.GridBase != null)
{
if (column.GridBase is SfDataGrid)
{
binding.Mode = (column.GridBase as SfDataGrid).SelectionController.CurrentCellManager.IsAddNewRow ?
CreateBindingForAddNewRow(column as GridColumn) :
(!column.isvaluebindingcreated ? source.Mode :
SetBindingMode(column, source.Path));
}
else
{
binding.Mode = !column.isvaluebindingcreated ? source.Mode : SetBindingMode(column, source.Path);
}
}
if (source.ElementName != null)
{
binding.ElementName = source.ElementName;
return(binding);
}
if (source.RelativeSource != null)
{
binding.RelativeSource = source.RelativeSource;
return(binding);
}
if (source.Source != null)
{
binding.Source = source.Source;
}
#if WPF
foreach (var validationRule in source.ValidationRules)
{
binding.ValidationRules.Add(validationRule);
}
#endif
return(binding);
}
