public virtual void Add(string name, DotvvmControl control, DotvvmProperty property, Action? nullBindingAction = null)
{
var binding = control.GetValueBinding(property);
if (binding == null)
{
if (nullBindingAction != null) nullBindingAction();
else Add(name, JsonConvert.SerializeObject(control.GetValue(property), DefaultViewModelSerializer.CreateDefaultSettings()));
}
else
{
entries.Add(new KnockoutBindingInfo(name, GetKnockoutBindingExpression(control, binding)));
}
}
private static void AddValidatedValue(IHtmlWriter writer, IDotvvmRequestContext context, DotvvmProperty prop, DotvvmControl control)
{
writer.AddKnockoutDataBind("dotvvmValidation", control, ValueProperty, renderEvenInServerRenderingMode: true);
// render options
var bindingGroup = new KnockoutBindingGroup();
foreach (var property in ValidationOptionProperties)
{
var javascriptName = KnockoutHelper.ConvertToCamelCase(property.Name);
var optionValue = control.GetValue(property);
if (!object.Equals(optionValue, property.DefaultValue))
{
bindingGroup.Add(javascriptName, JsonConvert.SerializeObject(optionValue, DefaultViewModelSerializer.CreateDefaultSettings()));
}
}
writer.AddKnockoutDataBind("dotvvmValidationOptions", bindingGroup);
}
private static void AddValidatedValue(IHtmlWriter writer, RenderContext context, object value, DotvvmControl control)
{
writer.AddKnockoutDataBind("dotvvmValidation", control, ValidatedValueProperty);
// render options
var bindingGroup = new KnockoutBindingGroup();
foreach (var property in ValidationOptionProperties)
{
var javascriptName = property.Name.Substring(0, 1).ToLower() + property.Name.Substring(1);
var optionValue = control.GetValue(property);
if (!object.Equals(optionValue, property.DefaultValue))
{
bindingGroup.Add(javascriptName, JsonConvert.SerializeObject(optionValue));
}
}
writer.AddKnockoutDataBind("dotvvmValidationOptions", bindingGroup);
}
/// <summary>
/// Generates a list of postback update handlers.
/// </summary>
private static string GetPostBackHandlersScript(DotvvmControl control, string eventName)
{
var handlers = (List <PostBackHandler>)control.GetValue(PostBack.HandlersProperty);
if (handlers == null)
{
return("null");
}
var effectiveHandlers = handlers.Where(h => string.IsNullOrEmpty(h.EventName) || h.EventName == eventName);
var sb = new StringBuilder();
sb.Append("[");
foreach (var handler in effectiveHandlers)
{
if (sb.Length > 1)
{
sb.Append(",");
}
sb.Append("{name:'");
sb.Append(handler.ClientHandlerName);
sb.Append("',options:function(){return {");
var isFirst = true;
var options = handler.GetHandlerOptionClientExpressions();
options.Add("enabled", handler.TranslateValueOrBinding(PostBackHandler.EnabledProperty));
foreach (var option in options)
{
if (!isFirst)
{
sb.Append(',');
}
isFirst = false;
sb.Append(option.Key);
sb.Append(":");
sb.Append(option.Value);
}
sb.Append("};}}");
}
sb.Append("]");
return(sb.ToString());
}
public static IEnumerable <string> GetContextPath(DotvvmControl control)
{
while (control != null)
{
var pathFragment = control.GetValue(Internal.PathFragmentProperty, false) as string;
if (pathFragment != null)
{
yield return(pathFragment);
}
else
{
var dataContextBinding = control.GetBinding(DotvvmBindableObject.DataContextProperty, false) as IValueBinding;
if (dataContextBinding != null)
{
yield return(dataContextBinding.GetKnockoutBindingExpression());
}
}
control = control.Parent;
}
}
public void Add(string name, DotvvmControl control, DotvvmProperty property, Action nullBindingAction = null)
{
var binding = control.GetValueBinding(property);
if (binding == null)
{
if (nullBindingAction != null)
{
nullBindingAction();
}
else
{
Add(name, JsonConvert.SerializeObject(control.GetValue(property)));
}
}
else
{
entries.Add(new KnockoutBindingInfo()
{
Name = name, Expression = control.GetValueBinding(property).GetKnockoutBindingExpression(control)
});
}
}
/// <summary>
/// Determines whether the specified control is a naming container.
/// </summary>
public static bool IsNamingContainer(DotvvmControl control)
{
return((bool)control.GetValue(Internal.IsNamingContainerProperty));
}