/// <summary>
/// Provides the implementation for operations that invoke a member. Classes
/// derived from the System.Dynamic.DynamicObject class can override this method
/// to specify dynamic behavior for operations such as calling a method.
/// </summary>
/// <param name="binder">
/// Provides information about the dynamic operation. The binder.Name property
/// provides the name of the member on which the dynamic operation is performed.
/// For example, for the statement sampleObject.SampleMethod(100), where sampleObject
/// is an instance of the class derived from the System.Dynamic.DynamicObject
/// class, binder.Name returns "SampleMethod". The binder.IgnoreCase property
/// specifies whether the member name is case-sensitive.
/// </param>
/// <param name="args">The arguments that are passed to the object member during the invoke operation.</param>
/// <param name="result">The result of the member invocation.</param>
/// <returns>true if the operation is successful; otherwise, false. </returns>
public override bool TryInvokeMember(InvokeMemberBinder binder, object[] args, out object result)
{
var methodName = binder.Name.ToLower();
// Checking to see if an overload of write is called that is not supported.
// all supported overloads should be explicitly implemented in this type.
if (methodName == "Write")
{
result = null;
return false;
}
// All string.Concat does is to do a null check on the arg.
var attributes = binder.CallInfo.ArgumentNames
.Select((it, i) => new HtmlAttribute(RewriteAttributeName(it), string.Concat(args[i]))).ToArray();
if (Array.IndexOf(SelfClosingTags, methodName) == -1)
{
result = new HtmlTag(this.writer, methodName, attributes);
}
else
{
result = null;
this.writer.RenderSelfClosingTag(methodName, attributes);
}
return true;
}
/// <summary>
/// Creates an HTML tag and adds any provided attributes to the tag.
/// </summary>
/// <param name="writer">
/// The HTMLTextWriter.
/// </param>
/// <param name="tag">
/// The type of HTML tag.
/// </param>
/// <param name="tagStyle">
/// The tag Style.
/// </param>
/// <param name="attributes">
/// HTML attributes.
/// </param>
/// <returns>
/// HTML tag with attributes.
/// </returns>
public static HtmlTag RenderTag(this HtmlTextWriter writer, HtmlTextWriterTag tag, HtmlTag.TagStyle tagStyle, params HtmlAttribute[] attributes)
{
return new HtmlTag(writer, tag, tagStyle, attributes);
}
public static HtmlTag RenderTag(this HtmlTextWriter writer, HtmlTextWriterTag tag, HtmlTag.TagStyle tagStyle, string id = null, string cssClass = null)
{
return RenderTag(writer, tag, tagStyle, ToAttributes(id, cssClass));
}
