Beispiel #1
0
        /// <summary>
        /// Gets the property value that is reflected from the specified record.
        /// </summary>
        /// <param name="record">
        /// The corresponding record to get the property value.
        /// </param>
        /// <param name="propName">
        /// The corresponding property name to get the value.
        /// </param>
        /// <returns>
        /// Returns the property value for the specified record and property name.
        /// </returns>
        public override object GetValue(object record, string propName)
        {
            if (dataGrid != null)
            {
                if (cachedcolumn == null || !cachedcolumn.mappingName.Equals(propName))
                {
                    cachedcolumn = columns != null?columns.FirstOrDefault(col => col.mappingName == propName) : dataGrid.Columns.FirstOrDefault(col => col.mappingName == propName);
                }

                if (cachedcolumn != null)
                {
                    if (cachedcolumn.IsUnbound)
                    {
                        return(dataGrid.GetUnBoundCellValue(cachedcolumn, record));
                    }

                    if (cachedcolumn.ValueBinding != null && cachedcolumn.useBindingValue)
                    {
                        cachedcolumn.ColumnWrapper.DataContext = record;
#if WPF
                        if (cachedcolumn.ColumnWrapper.ValueBindingExpression.Status == BindingStatus.Unattached)
                        {
                            cachedcolumn.ColumnWrapper.SetValueBinding(cachedcolumn.ValueBinding);
                        }
#endif
                        return(cachedcolumn.ColumnWrapper.Value);
                    }
                }
            }
            return(base.GetValue(record, propName));
        }
        /// <summary>
        /// Gets UnBound Func Value for sorting and grouping
        /// </summary>
        /// <param name="view">View</param>
        /// <param name="dataGrid">DataGrid</param>
        /// <param name="column">Column</param>
        /// <returns>returns Func<string, object, object></returns>
        internal static Func <string, object, object> GetUnboundFunc(this CollectionViewAdv view, SfDataGrid dataGrid, GridUnBoundColumn column)
        {
            if (column.UnBoundFunc != null)
            {
                return(column.UnBoundFunc);
            }

            column.UnBoundFunc = (columnName, record) =>
            {
                if (dataGrid != null)
                {
                    return(dataGrid.GetUnBoundCellValue(column, record));
                }
                else
                {
                    return(null);
                }
            };
            return(column.UnBoundFunc);
        }