private DotvvmControl GetEmptyItem(IDotvvmRequestContext context)
{
var dataSourceBinding = GetDataSourceBinding();
emptyDataContainer = new EmptyData();
emptyDataContainer.SetValue(EmptyData.RenderWrapperTagProperty, GetValueRaw(RenderWrapperTagProperty));
emptyDataContainer.SetValue(EmptyData.WrapperTagNameProperty, GetValueRaw(WrapperTagNameProperty));
emptyDataContainer.SetBinding(DataSourceProperty, dataSourceBinding);
EmptyDataTemplate.BuildContent(context, emptyDataContainer);
return(emptyDataContainer);
}
/// <summary>
/// Performs the data-binding and builds the controls inside the <see cref="Repeater"/>.
/// </summary>
private void DataBind(IDotvvmRequestContext context)
{
Children.Clear();
emptyDataContainer = null;
var dataSourceBinding = GetDataSourceBinding();
var index = 0;
var dataSource = DataSource;
if (dataSource != null)
{
var itemBinding = GetItemBinding();
var bindingService = context.Configuration.ServiceLocator.GetService <BindingCompilationService>();
foreach (var item in GetIEnumerableFromDataSource())
{
var placeholder = new DataItemContainer {
DataItemIndex = index
};
ItemTemplate.BuildContent(context, placeholder);
placeholder.SetBinding(DataContextProperty, ValueBindingExpression.CreateBinding(
bindingService,
j => item,
itemBinding.KnockoutExpression.AssignParameters(p =>
p == JavascriptTranslator.CurrentIndexParameter ? new CodeParameterAssignment(index.ToString(), OperatorPrecedence.Max) :
default(CodeParameterAssignment))));
placeholder.SetValue(Internal.PathFragmentProperty, GetPathFragmentExpression() + "/[" + index + "]");
placeholder.ID = index.ToString();
Children.Add(placeholder);
index++;
}
numberOfRows = index;
}
else
{
numberOfRows = 0;
}
// add empty item
if (EmptyDataTemplate != null)
{
emptyDataContainer = new EmptyData();
emptyDataContainer.SetValue(EmptyData.RenderWrapperTagProperty, GetValueRaw(RenderWrapperTagProperty));
emptyDataContainer.SetValue(EmptyData.WrapperTagNameProperty, GetValueRaw(WrapperTagNameProperty));
emptyDataContainer.SetBinding(DataSourceProperty, dataSourceBinding);
EmptyDataTemplate.BuildContent(context, emptyDataContainer);
Children.Add(emptyDataContainer);
}
}
/// <summary>
/// Performs the data-binding and builds the controls inside the <see cref="Repeater"/>.
/// </summary>
private void DataBind(IDotvvmRequestContext context)
{
Children.Clear();
emptyDataContainer = null;
var dataSourceBinding = GetDataSourceBinding();
var index = 0;
var dataSource = DataSource;
if (dataSource != null)
{
var items = GetIEnumerableFromDataSource(dataSource).Cast <object>().ToArray();
var javascriptDataSourceExpression = dataSourceBinding.GetKnockoutBindingExpression();
foreach (var item in items)
{
var placeholder = new DataItemContainer {
DataItemIndex = index
};
ItemTemplate.BuildContent(context, placeholder);
placeholder.SetBinding(DataContextProperty, GetItemBinding((IList)items, javascriptDataSourceExpression, index));
placeholder.SetValue(Internal.PathFragmentProperty, JavascriptCompilationHelper.AddIndexerToViewModel(GetPathFragmentExpression(), index));
placeholder.ID = index.ToString();
Children.Add(placeholder);
index++;
}
numberOfRows = index;
}
else
{
numberOfRows = 0;
}
// add empty item
if (EmptyDataTemplate != null)
{
emptyDataContainer = new EmptyData();
emptyDataContainer.SetValue(EmptyData.RenderWrapperTagProperty, GetValueRaw(RenderWrapperTagProperty));
emptyDataContainer.SetValue(EmptyData.WrapperTagNameProperty, GetValueRaw(WrapperTagNameProperty));
emptyDataContainer.SetBinding(DataSourceProperty, dataSourceBinding);
EmptyDataTemplate.BuildContent(context, emptyDataContainer);
Children.Add(emptyDataContainer);
}
}
private void DataBind(IDotvvmRequestContext context)
{
Children.Clear();
emptyDataContainer = null;
head = null;
var dataSourceBinding = GetDataSourceBinding();
var dataSource = DataSource;
var sortCommand =
dataSource is ISortableGridViewDataSet sortableSet && sortableSet.SortingOptions is ISortingOptions sortOptions ?
expr => {
if (sortOptions.SortExpression == expr)
{
sortOptions.SortDescending ^= true;
}
else
{
sortOptions.SortExpression = expr;
sortOptions.SortDescending = false;
}
(sortableSet as IPageableGridViewDataSet)?.GoToFirstPage();
}
:
SortChanged;
// WORKAROUND: DataSource is null => don't throw exception
if (sortCommand == null && dataSource == null)
{
sortCommand = s => {
throw new DotvvmControlException(this, "Cannot sort when DataSource is null.");
};
}
CreateHeaderRow(context, sortCommand);
var index = 0;
if (dataSource != null)
{
var itemBinding = GetItemBinding();
foreach (var item in GetIEnumerableFromDataSource())
{
// create row
var placeholder = new DataItemContainer {
DataItemIndex = index
};
placeholder.SetDataContextTypeFromDataSource(dataSourceBinding);
placeholder.DataContext = item;
placeholder.SetValue(Internal.PathFragmentProperty, GetPathFragmentExpression() + "/[" + index + "]");
placeholder.ID = index.ToString();
Children.Add(placeholder);
CreateRowWithCells(context, placeholder);
index++;
}
numberOfRows = index;
}
else
{
numberOfRows = 0;
}
// add empty item
if (EmptyDataTemplate != null)
{
emptyDataContainer = new EmptyData();
emptyDataContainer.SetValue(EmptyData.VisibleProperty, GetValueRaw(VisibleProperty));
emptyDataContainer.SetBinding(DataSourceProperty, dataSourceBinding);
EmptyDataTemplate.BuildContent(context, emptyDataContainer);
Children.Add(emptyDataContainer);
}
}
private void DataBind(IDotvvmRequestContext context)
{
Children.Clear();
emptyDataContainer = null;
head = null;
var dataSourceBinding = GetDataSourceBinding();
var dataSource = DataSource;
if (dataSource is IRefreshableGridViewDataSet refreshableDataSet)
{
CallGridViewDataSetRefreshRequest(refreshableDataSet);
}
var sortCommand =
dataSource is ISortableGridViewDataSet sortableGridViewDataSet ?
sortableGridViewDataSet.SetSortExpression :
SortChanged;
// WORKAROUND: DataSource is null => don't throw exception
if (sortCommand == null && dataSource == null)
{
sortCommand = s => {
throw new DotvvmControlException(this, "Cannot sort when DataSource is null.");
};
}
CreateHeaderRow(context, sortCommand);
var index = 0;
if (dataSource != null)
{
var itemBinding = GetItemBinding();
var bindingService = context.Configuration.ServiceLocator.GetService <BindingCompilationService>();
foreach (var item in GetIEnumerableFromDataSource())
{
// create row
var placeholder = new DataItemContainer {
DataItemIndex = index
};
placeholder.SetDataContextForItem(itemBinding, index, item);
placeholder.SetValue(Internal.PathFragmentProperty, GetPathFragmentExpression() + "/[" + index + "]");
placeholder.ID = index.ToString();
Children.Add(placeholder);
CreateRowWithCells(context, placeholder);
index++;
}
numberOfRows = index;
}
else
{
numberOfRows = 0;
}
// add empty item
if (EmptyDataTemplate != null)
{
emptyDataContainer = new EmptyData();
emptyDataContainer.SetValue(EmptyData.VisibleProperty, GetValueRaw(VisibleProperty));
emptyDataContainer.SetBinding(DataSourceProperty, dataSourceBinding);
EmptyDataTemplate.BuildContent(context, emptyDataContainer);
Children.Add(emptyDataContainer);
}
}
