private GridViewTextColumn GenerateTextColumn(Column column)
{
var bindingService = Context.Configuration.ServiceProvider.GetRequiredService <BindingCompilationService>();
//gets element with ID attribute set to GridView
var gridView = (GridView)Context.View.FindControlByClientId("GridView");
//get DataContext from other column to ensure that the new column will have the same dataContext
//we could also use DataContextStack.Create(typeof(GridViewData)); if we cannot copy DataContext
var dataContextStack = gridView.Columns[0].GetDataContextType();
// ((GridViewData)objects[0]).AdditionalProp translates into _parent0.AdditionalProp which is equal to _this.AdditionalProp
Expression <Func <object[], int> > expression = objects => ((GridViewData)objects[0]).DefaultProp;
//this is quite expensive call
//but soon there should be available cached version
//usage will be bindingService.Cache.CreateCachedBinding("ID", new [] { dataContext }, () => CreateBinding<T>(service, o => (T)o[0], dataContext).CreateBinding(bindingService,expression,dataContextStack));
//see https://github.com/riganti/dotvvm/pull/672 for more info
var valueBindingExpression = ValueBindingExpression.CreateBinding(bindingService, expression, dataContextStack);
var gridViewTextColumn = new GridViewTextColumn()
{
HeaderText = column.Name,
ValueBinding = valueBindingExpression
};
return(gridViewTextColumn);
}
protected override GridViewColumn CreateColumnCore(GridView gridView, PropertyDisplayMetadata property, DynamicDataContext context)
{
var column = new GridViewTextColumn();
column.ValueType = TextBoxHelper.GetValueTypeOrDefault(property.PropertyInfo);
column.FormatString = property.FormatString;
column.SetBinding(GridViewTextColumn.ValueBindingProperty, context.CreateValueBinding(property.PropertyInfo.Name));
column.IsEditable = property.IsEditAllowed;
return(column);
}
