internal bool RaiseCellValidate(RowColumnIndex currentCellIndex, ITreeGridCellRenderer renderer, bool allowattributeValidation)
{
if (IsCurrentCellValidated)
{
return(true);
}
var dataRow = treeGrid.RowGenerator.Items.FirstOrDefault(item => item.RowIndex == currentCellIndex.RowIndex);
if (dataRow == null)
{
return(false);
}
var columnBase = dataRow.VisibleColumns.FirstOrDefault(x => x.ColumnIndex == currentCellIndex.ColumnIndex);
if (columnBase == null)
{
return(false);
}
renderer = renderer ?? columnBase.Renderer;
if (renderer == null)
{
return(false);
}
//WPF-36608 - CurrenctCellvalidating event are not fired, when we select cell on treeGrid template column.
if (!columnBase.Renderer.CanValidate())
{
SetCurrentCellValidated(true);
return(true);
}
object oldValue = null;
object changedNewValue;
string errorMessage;
oldValue = this.treeGrid.SelectionController.CurrentCellManager.oldCellValue;
var newCellValue = renderer.GetControlValue();
var treeNode = treeGrid.View.Nodes.GetNode(dataRow.RowData);
if (this.RaiseCurrentCellValidatingEvent(oldValue, newCellValue, columnBase.TreeGridColumn, out changedNewValue, currentCellIndex, columnBase.ColumnElement as FrameworkElement, out errorMessage, dataRow.RowData, treeNode))
{
bool isValid = true;
if (newCellValue != changedNewValue)
{
renderer.SetControlValue(changedNewValue);
}
if (allowattributeValidation)
{
if ((columnBase.ColumnElement is TreeGridCell) && (columnBase.ColumnElement as TreeGridCell).Content != null && (columnBase.ColumnElement as TreeGridCell).Content is FrameworkElement)
{
renderer.UpdateSource((columnBase.ColumnElement as TreeGridCell).Content as FrameworkElement);
}
if (columnBase.TreeGridColumn.GridValidationMode != GridValidationMode.None)
{
isValid = this.treeGrid.ValidationHelper.ValidateColumn(dataRow.RowData, columnBase.TreeGridColumn.MappingName, (columnBase.ColumnElement as TreeGridCell), currentCellIndex) &&
TreeGridDataValidation.Validate((columnBase.ColumnElement as TreeGridCell), columnBase.TreeGridColumn.MappingName, columnBase.ColumnElement.DataContext);
}
#if WPF
if (!isValid && columnBase.TreeGridColumn.GridValidationMode == GridValidationMode.InEdit)
{
return(false);
}
#endif
}
this.RaiseCurrentCellValidatedEvent(oldValue, columnBase.Renderer.GetControlValue(), columnBase.TreeGridColumn, errorMessage, dataRow.RowData, treeNode);
SetCurrentCellValidated(true);
return(true);
}
return(false);
}
internal bool ValidateColumn(object rowData, string columnName, TreeGridCell currentCell, RowColumnIndex currentCellIndex)
{
var propertyName = columnName;
bool isValid = true;
var errorMessage = string.Empty;
bool isAttributeError = false;
if (rowData == null || string.IsNullOrEmpty(columnName) || currentCell == null || currentCellIndex == RowColumnIndex.Empty)
{
return(isValid);
}
#if UWP
PropertyInfoCollection itemProperties;
#else
PropertyDescriptorCollection itemProperties;
#endif
if (this.treeGrid.HasView)
{
itemProperties = this.treeGrid.View.GetItemProperties();
if (itemProperties == null)
{
return(isValid);
}
}
else
{
#if WPF
itemProperties = TypeDescriptor.GetProperties(rowData.GetType());
#else
itemProperties = new PropertyInfoCollection(rowData.GetType());
#endif
}
if (columnName.Contains('.'))
{
var propNames = columnName.Split('.');
columnName = propNames[propNames.Length - 1];
Array.Resize(ref propNames, propNames.Length - 1);
var pName = string.Join(".", propNames);
#if WPF
rowData = PropertyDescriptorExtensions.GetValue(itemProperties, rowData, pName);
#else
rowData = Syncfusion.Data.PropertyInfoExtensions.GetValue(itemProperties, rowData, pName);
#endif
}
PropertyInfo propertyinfo = null;
ValidationContext validationContext = null;
#if WPF
if (rowData != null)
{
propertyinfo = rowData.GetType().GetProperty(columnName);
validationContext = new ValidationContext(rowData, null, null)
{
MemberName = columnName
};
}
#else
if (rowData != null)
{
propertyinfo = rowData.GetType().GetRuntimeProperties().FirstOrDefault(x => x.Name == columnName);
validationContext = new ValidationContext(rowData)
{
MemberName = columnName
};
}
#endif
if (errorMessages != null && rowIndex == currentCellIndex.RowIndex && errorMessages.Keys.Contains(columnName) && IsCurrentRowValidated)
{
errorMessage = errorMessages[columnName];
}
if ((this.treeGrid.Columns[propertyName] as TreeGridColumn).GridValidationMode != GridValidationMode.None)
{
if (propertyinfo != null)
{
var validationAttribute = propertyinfo.GetCustomAttributes(false).OfType <ValidationAttribute>();
var value = propertyinfo.GetValue(rowData, null);
var results = new List <System.ComponentModel.DataAnnotations.ValidationResult>();
try
{
if (!Validator.TryValidateValue(value, validationContext, results, validationAttribute))
{
foreach (var result in results)
{
errorMessage = !string.IsNullOrEmpty(errorMessage) ? errorMessage + string.Format("\n") + result.ErrorMessage : errorMessage + result.ErrorMessage;
}
isValid = false;
isAttributeError = true;
}
}
catch (Exception e)
{
errorMessage = e.Message;
isValid = false;
isAttributeError = true;
}
}
}
if (currentCell != null)
{
if (!isValid || !string.IsNullOrEmpty(errorMessage))
{
currentCell.SetError(errorMessage, isAttributeError);
}
else
{
currentCell.RemoveError(true);
}
}
#if !SyncfusionFramework4_0 || UWP
if (rowData is INotifyDataErrorInfo)
{
isValid = isValid && TreeGridDataValidation.ValidateINotifyDataErrorInfo(currentCell, columnName, rowData);
}
#endif
return(isValid);
}
internal void ApplyRowHeaderVisualState()
{
if (!TreeGrid.showRowHeader || this.RowType == TreeRowType.HeaderRow)
{
return;
}
var columnBase = this.VisibleColumns.FirstOrDefault(col => col.ColumnType == TreeColumnType.RowHeader);
if (columnBase == null)
{
return;
}
var rowHeaderCell = columnBase.ColumnElement as TreeGridRowHeaderCell;
if (rowHeaderCell == null)
{
return;
}
if (this.IsCurrentRow)
{
rowHeaderCell.State = "CurrentRow";
}
else
{
rowHeaderCell.State = "Normal";
}
if (this.IsEditing)
{
rowHeaderCell.State = "EditingRow";
}
rowHeaderCell.ApplyVisualState();
var dataValidation = this.RowData;
if (dataValidation != null)
{
#if !SyncfusionFramework4_0 || UWP
if ((dataValidation as INotifyDataErrorInfo) != null)
{
if (DataValidation.ValidateRowINotifyDataErrorInfo(this.RowData))
{
rowHeaderCell.RowErrorMessage = GridResourceWrapper.RowErrorMessage;
if (!rowHeaderCell.State.Equals("Normal"))
{
rowHeaderCell.State = "Error_CurrentRow";
}
else
{
rowHeaderCell.State = "Error";
}
rowHeaderCell.ApplyVisualState();
return;
}
}
#endif
#if WPF
if ((dataValidation as IDataErrorInfo) != null)
{
if (TreeGridDataValidation.ValidateRow(this.RowData))
{
rowHeaderCell.RowErrorMessage = (dataValidation as IDataErrorInfo).Error;
if (!rowHeaderCell.State.Equals("Normal"))
{
rowHeaderCell.State = "Error_CurrentRow";
}
else
{
rowHeaderCell.State = "Error";
}
rowHeaderCell.ApplyVisualState();
return;
}
else
{
if (this.TreeGrid.View != null && this.TreeGrid.View.CurrentItem == null)
{
rowHeaderCell.State = "Normal";
}
}
}
#endif
}
rowHeaderCell.ApplyVisualState();
}