private object JoinValuesOrBindings(IList <object> fragments)
{
if (fragments.All(f => f is string))
{
return(string.Join("_", fragments));
}
else
{
BindingCompilationService service = null;
var result = new ParametrizedCode.Builder();
var first = true;
foreach (var f in fragments)
{
if (!first | (first = false))
{
result.Add("+'_'+");
}
if (f is IValueBinding binding)
{
service = service ?? binding.GetProperty <BindingCompilationService>(ErrorHandlingMode.ReturnNull);
result.Add(binding.GetParametrizedKnockoutExpression(this, unwraped: true), 14);
}
else
{
result.Add(JavascriptCompilationHelper.CompileConstant(f));
}
}
if (service == null)
{
throw new NotSupportedException();
}
return(ValueBindingExpression.CreateBinding <string>(service.WithoutInitialization(), h => null, result.Build(new OperatorPrecedence())));
}
}
private void DataBind(Hosting.IDotvvmRequestContext context)
{
if (DataSet is IRefreshableGridViewDataSet refreshableDataSet)
{
CallGridViewDataSetRefreshRequest(refreshableDataSet);
}
Children.Clear();
content = new HtmlGenericControl("ul");
var dataContextType = DataContextStack.Create(typeof(IPageableGridViewDataSet), this.GetDataContextType());
content.SetDataContextType(dataContextType);
content.SetBinding(DataContextProperty, GetDataSetBinding());
Children.Add(content);
var bindings = context.Services.GetService <CommonBindings>();
var dataSet = DataSet;
if (dataSet != null)
{
object enabledValue = HasValueBinding(EnabledProperty) ?
(object)ValueBindingExpression.CreateBinding <bool>(
bindingService.WithoutInitialization(),
h => (bool)GetValueBinding(EnabledProperty).Evaluate(this),
new JsSymbolicParameter(JavascriptTranslator.KnockoutContextParameter).Member("$pagerEnabled")) :
Enabled;
// first button
firstLi = new HtmlGenericControl("li");
var firstLink = new LinkButton();
SetButtonContent(context, firstLink, "««", FirstPageTemplate);
firstLink.SetBinding(ButtonBase.ClickProperty, bindings.GoToFirstPageCommand);
if (!true.Equals(enabledValue))
{
firstLink.SetValue(LinkButton.EnabledProperty, enabledValue);
}
firstLi.Children.Add(firstLink);
content.Children.Add(firstLi);
// previous button
previousLi = new HtmlGenericControl("li");
var previousLink = new LinkButton();
SetButtonContent(context, previousLink, "«", PreviousPageTemplate);
previousLink.SetBinding(ButtonBase.ClickProperty, bindings.GoToPrevPageCommand);
if (!true.Equals(enabledValue))
{
previousLink.SetValue(LinkButton.EnabledProperty, enabledValue);
}
previousLi.Children.Add(previousLink);
content.Children.Add(previousLi);
// number fields
numbersPlaceHolder = new PlaceHolder();
content.Children.Add(numbersPlaceHolder);
var i = 0;
foreach (var number in dataSet.PagingOptions.NearPageIndexes)
{
var li = new HtmlGenericControl("li");
li.SetBinding(DataContextProperty, GetNearIndexesBinding(context, i, dataContextType));
if (number == dataSet.PagingOptions.PageIndex)
{
li.Attributes["class"] = "active";
}
var link = new LinkButton()
{
Text = (number + 1).ToString()
};
link.SetBinding(ButtonBase.ClickProperty, bindings.GoToThisPageCommand);
if (!true.Equals(enabledValue))
{
link.SetValue(LinkButton.EnabledProperty, enabledValue);
}
li.Children.Add(link);
numbersPlaceHolder.Children.Add(li);
i++;
}
// next button
nextLi = new HtmlGenericControl("li");
var nextLink = new LinkButton();
SetButtonContent(context, nextLink, "»", NextPageTemplate);
nextLink.SetBinding(ButtonBase.ClickProperty, bindings.GoToNextPageCommand);
if (!true.Equals(enabledValue))
{
nextLink.SetValue(LinkButton.EnabledProperty, enabledValue);
}
nextLi.Children.Add(nextLink);
content.Children.Add(nextLi);
// last button
lastLi = new HtmlGenericControl("li");
var lastLink = new LinkButton();
SetButtonContent(context, lastLink, "»»", LastPageTemplate);
if (!true.Equals(enabledValue))
{
lastLink.SetValue(LinkButton.EnabledProperty, enabledValue);
}
lastLink.SetBinding(ButtonBase.ClickProperty, bindings.GoToLastPageCommand);
lastLi.Children.Add(lastLink);
content.Children.Add(lastLi);
}
}
protected virtual void DataBind(Hosting.IDotvvmRequestContext context)
{
Children.Clear();
var dataContextType = DataContextStack.Create(typeof(IPageableGridViewDataSet), this.GetDataContextType());
ContentWrapper = CreateWrapperList(dataContextType);
Children.Add(ContentWrapper);
var bindings = context.Services.GetRequiredService <CommonBindings>();
object enabledValue = (HasValueBinding(EnabledProperty) ?
(object)ValueBindingExpression.CreateBinding <bool>(
bindingService.WithoutInitialization(),
h => (bool)GetValueBinding(EnabledProperty).Evaluate(this),
new JsSymbolicParameter(JavascriptTranslator.KnockoutContextParameter).Member("$pagerEnabled")) :
Enabled);
GoToFirstPageButton = CreateNavigationButton("««", FirstPageTemplate, enabledValue, bindings.GoToFirstPageCommand, context);
ContentWrapper.Children.Add(GoToFirstPageButton);
GoToPreviousPageButton = CreateNavigationButton("«", PreviousPageTemplate, enabledValue, bindings.GoToPrevPageCommand, context);
ContentWrapper.Children.Add(GoToPreviousPageButton);
// number fields
NumberButtonsPlaceHolder = new PlaceHolder();
ContentWrapper.Children.Add(NumberButtonsPlaceHolder);
var dataSet = DataSet;
if (dataSet != null)
{
var i = 0;
foreach (var number in dataSet.PagingOptions.NearPageIndexes)
{
var li = new HtmlGenericControl("li");
li.SetBinding(DataContextProperty, GetNearIndexesBinding(context, i, dataContextType));
if (number == dataSet.PagingOptions.PageIndex)
{
li.Attributes["class"] = "active";
}
var link = new LinkButton()
{
Text = (number + 1).ToString()
};
link.SetBinding(ButtonBase.ClickProperty, bindings.GoToThisPageCommand);
if (!true.Equals(enabledValue))
{
link.SetValue(LinkButton.EnabledProperty, enabledValue);
}
li.Children.Add(link);
NumberButtonsPlaceHolder.Children.Add(li);
i++;
}
}
GoToNextPageButton = CreateNavigationButton("»", NextPageTemplate, enabledValue, bindings.GoToNextPageCommand, context);
ContentWrapper.Children.Add(GoToNextPageButton);
GoToLastPageButton = CreateNavigationButton("»»", LastPageTemplate, enabledValue, bindings.GoToLastPageCommand, context);
ContentWrapper.Children.Add(GoToLastPageButton);
}