Question

我已经对 custom子进行了控制,但我没有东西,因为我可以让它正常工作。

Button公司如果采用这样的方法,就可发挥作用:

protected override void Render(HtmlTextWriter writer)
{
  base.Render(writer);
}

但当我改变法典时:

protected override void Render(HtmlTextWriter writer)
    {
        writer.AddAttribute(HtmlTextWriterAttribute.Class, css);
        writer.AddAttribute(HtmlTextWriterAttribute.Id, this.UniqueID);
        writer.AddAttribute(HtmlTextWriterAttribute.Name, this.ID);
        writer.RenderBeginTag(HtmlTextWriterTag.Button);
        writer.RenderBeginTag(HtmlTextWriterTag.Span);
        writer.RenderBeginTag(HtmlTextWriterTag.Span);
        writer.RenderBeginTag(HtmlTextWriterTag.Span);
        writer.Write(base.Text);
        writer.RenderEndTag();
        writer.RenderEndTag();
        writer.RenderEndTag();
        writer.RenderEndTag();
    }

它只装上了同一个页,点击了纽特,没有发生。

因此,我不做什么基础。 Render (write) does? 这些习俗控制中是否有其他东西可以做些什么,或者我能做得更好?

各州的产出应当像:

<button>
  <span>
    <span>
      <span>
        Title
      </span>
    </span>
  </span>
</button>

Answer 1

您应援引基本方法......

base.Render(writer);

和以下简称:

  protected override void Render(HtmlTextWriter writer)
        {
            writer.AddAttribute(HtmlTextWriterAttribute.Class, css);
            writer.AddAttribute(HtmlTextWriterAttribute.Id, this.UniqueID);
            writer.AddAttribute(HtmlTextWriterAttribute.Name, this.ID);
            writer.RenderBeginTag(HtmlTextWriterTag.Button);
            writer.RenderBeginTag(HtmlTextWriterTag.Span);
            writer.RenderBeginTag(HtmlTextWriterTag.Span);
            writer.RenderBeginTag(HtmlTextWriterTag.Span);
            writer.Write(base.Text);
            writer.RenderEndTag();
            writer.RenderEndTag();
            writer.RenderEndTag();
            writer.RenderEndTag();

　　　　　　　base.Render(writer);
        }

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