Question

I’m trying to work on a sub-class of System.Web.UI.WebControls.HyperLink in C# and I want to be able to specify a default text property that will replace the text value in certain conditions.

public class MyHyperLink : HyperLink
{
    public string DefaultText { get; set; }

    public override string Text
    {
        get
        {
            return string.IsNullOrEmpty(base.Text)
                ? (this.DefaultText ?? string.Empty)
                : base.Text;
        }
    }
}

When I used this code my hyperlink rendered on the page but instead of <a>Default Text</a> I got <a text="Default Text"></a>.

Answer 1

According to reflector, you did miss an attribute, and did not override the setter

public class MyHyperLink : HyperLink
{
    public string DefaultText { get; set; }

    [PersistenceMode(PersistenceMode.InnerDefaultProperty)]
    public override string Text
    {
        get
        {
            return string.IsNullOrEmpty(base.Text) ? this.DefaultText : base.Text;
        }
        set
        {
            base.Text = value;
        }
    }
}