protected override void RenderControl(IHtmlWriter writer)
{
var textExpression = KnockoutBindingHelper.GetBindingExpressionOrNull(TextProperty, this);
var needsLabel = KnockoutBindingHelper.IsKnockoutBinding(textExpression) || !string.IsNullOrEmpty(Text);
// render the checkbox
writer.RenderBeginTag("input");
writer.AddAttribute("type", "radio");
var valueExpression = KnockoutBindingHelper.GetBindingExpressionOrNull(ValueProperty, this);
if (KnockoutBindingHelper.IsKnockoutBinding(valueExpression))
{
writer.AddBindingAttribute("value", KnockoutBindingHelper.TranslateToKnockoutProperty(this, ValueProperty, valueExpression));
}
else
{
writer.AddAttribute("value", Value);
}
writer.AddAttribute("name", GroupName);
var selectedValueExpression = KnockoutBindingHelper.GetBindingExpressionOrNull(SelectedValueProperty, this);
if (KnockoutBindingHelper.IsKnockoutBinding(selectedValueExpression))
{
writer.AddBindingAttribute("checked", KnockoutBindingHelper.TranslateToKnockoutProperty(this, SelectedValueProperty, selectedValueExpression));
}
else
{
writer.AddAttribute("checked", IsChecked ? "checked" : "");
}
if (needsLabel)
{
EnsureHasID();
writer.AddAttribute("id", ID);
}
writer.RenderEndTag();
// render the label
if (needsLabel)
{
writer.RenderBeginTag("label");
writer.AddAttribute("for", ID);
if (KnockoutBindingHelper.IsKnockoutBinding(textExpression))
{
writer.AddBindingAttribute("", KnockoutBindingHelper.TranslateToKnockoutProperty(this, TextProperty, textExpression));
}
else
{
writer.WriteText(Text, true);
}
writer.RenderEndTag();
}
}
protected override void RenderControl(IHtmlWriter writer)
{
// begin
if (Mode == TextMode.MultiLine)
{
writer.RenderBeginTag("textarea");
}
else
{
writer.RenderBeginTag("input");
writer.AddAttribute("type", Mode.ToString().ToLower());
}
// content
var expr = KnockoutBindingHelper.GetBindingExpressionOrNull(TextProperty, this);
if (!KnockoutBindingHelper.IsKnockoutBinding(expr))
{
if (Mode == TextMode.MultiLine)
{
writer.WriteText(Text, true);
}
else
{
writer.AddAttribute("value", Text);
}
}
else
{
writer.AddBindingAttribute("value", KnockoutBindingHelper.TranslateToKnockoutProperty(this, TextProperty, expr));
}
// end
writer.RenderEndTag();
}
/// <summary>
/// Renders the specified writer.
/// </summary>
protected override void RenderControl(IHtmlWriter writer)
{
writer.RenderBeginTag("table");
if (ItemTemplate != null)
{
var itemsSourceExpression = KnockoutBindingHelper.GetBindingExpressionOrNull(ItemsSourceProperty, this);
if (KnockoutBindingHelper.IsKnockoutBinding(itemsSourceExpression))
{
// knockout template
writer.RenderBeginTag("tbody");
writer.AddBindingAttribute("foreach", KnockoutBindingHelper.TranslateToKnockoutProperty(this, ItemsSourceProperty, itemsSourceExpression));
if (string.IsNullOrEmpty(KeyPropertyName))
{
ItemTemplate.DataContext = CreateClientTemplateInstanceDataContextBinding();
}
else
{
ItemTemplate.DataContext = CreateClientTemplateInstanceDataContextBinding(KeyPropertyName);
}
ItemTemplate.Render(writer);
writer.RenderEndTag();
}
else if (ItemsSource != null)
{
writer.RenderBeginTag("tbody");
var index = 0;
var rawItemsSourceValue = this.GetRawValue(ItemsSourceProperty);
foreach (var item in ItemsSource)
{
// render on server side
writer.RenderBeginTag("tr");
if (string.IsNullOrEmpty(KeyPropertyName) || item == null)
{
ItemTemplate.DataContext = CreateServerTemplateInstanceDataContextBinding(index);
}
else
{
var keyValue = GetKeyValue(item);
ItemTemplate.DataContext = CreateServerTemplateInstanceDataContextBinding(KeyPropertyName, keyValue);
}
ItemTemplate.Render(writer);
writer.RenderEndTag();
index++;
}
writer.RenderEndTag();
}
}
writer.RenderEndTag();
}
protected override void RenderControl(IHtmlWriter writer)
{
writer.RenderBeginTag("input");
var expr = KnockoutBindingHelper.GetBindingExpressionOrNull(TextProperty, this);
if (KnockoutBindingHelper.IsKnockoutBinding(expr))
{
writer.AddBindingAttribute("value", KnockoutBindingHelper.TranslateToKnockoutProperty(this, TextProperty, expr));
}
else
{
writer.AddAttribute("value", Text);
}
var expr2 = KnockoutBindingHelper.GetCommandExpressionOrNull(OnClickProperty, this);
if (KnockoutBindingHelper.IsKnockoutCommand(expr2))
{
writer.AddBindingAttribute("click", KnockoutBindingHelper.TranslateToKnockoutCommand(this, OnClickProperty, expr2));
}
writer.AddAttribute("type", "button");
writer.RenderEndTag();
}
/// <summary>
/// Renders the control to the writer.
/// </summary>
protected override void RenderControl(IHtmlWriter writer)
{
writer.RenderBeginTag("select");
var itemsSourceExpression = KnockoutBindingHelper.GetBindingExpressionOrNull(ItemsSourceProperty, this);
if (KnockoutBindingHelper.IsKnockoutBinding(itemsSourceExpression))
{
// render items on client
writer.AddBindingAttribute("options", KnockoutBindingHelper.TranslateToKnockoutProperty(this, ItemsSourceProperty, itemsSourceExpression));
if (DisplayNullItem)
{
writer.AddBindingAttribute("optionsCaption", NullItemText);
}
if (DisplayMemberBinding != null)
{
writer.AddBindingAttribute("optionsText", KnockoutBindingHelper.TranslateToKnockoutProperty(this, DisplayMemberBindingProperty, DisplayMemberBinding));
}
if (ValueMemberBinding != null)
{
writer.AddBindingAttribute("optionsValue", KnockoutBindingHelper.TranslateToKnockoutProperty(this, ValueMemberBindingProperty, ValueMemberBinding));
}
}
else if (ItemsSource != null)
{
// render items on server
if (DisplayNullItem)
{
writer.RenderBeginTag("option");
writer.AddAttribute("value", "");
writer.WriteText(NullItemText, true);
writer.RenderEndTag();
}
// render on server
foreach (var item in ItemsSource)
{
var itemValue = EvaluateValueMember(item);
var itemText = (EvaluateDisplayMember(item) ?? "").ToString();
var isSelected = (itemValue == null && SelectedValue == null) || itemValue.Equals(SelectedValue);
writer.RenderBeginTag("option");
writer.AddAttribute("value", (itemValue ?? "").ToString());
writer.WriteText(itemText, true);
if (isSelected)
{
writer.AddAttribute("selected", "selected");
}
writer.RenderEndTag();
}
}
}
