BaseAdapterの継承したクラスの作り方がよくわからない

publicclass MyAdapter : BaseAdapter<string>
{
    private List<string> l = new List<string>();

    private Context context;

    public MyAdapter(Context context)
    {
        this.context = context;
    }

    publicoverridestringthis[int position]
    {
        get { returnthis.l[position]; }
    }

    publicoverrideint Count
    {
        get { return l.Count; }
    }

    publicoverridelong GetItemId(int position)
    {
        return position;
    }

    publicoverride View GetView(int position, View convertView, ViewGroup parent)
    {
        if (convertView == null)
        {
            convertView = View.Inflate(this.context, Resource.Layout.MyLayout, parent);
        }
        convertView.FindViewById<TextView>(Resource.Id.textViewContent).Text = this[position];
        return convertView;
    }

    publicvoid Add(string i)
    {
        this.l.Add(i);
        this.NotifyDataSetChanged();
    }
}

これでInflateのところで例外が出る。因みにMyLayout.axmlはこんな感じ。

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:orientation="vertical"android:layout_width="fill_parent"android:layout_height="fill_parent"><TextViewandroid:text="項目"android:textAppearance="?android:attr/textAppearanceLarge"android:layout_width="match_parent"android:layout_height="wrap_content"android:id="@+id/textView1" /><TextViewandroid:text="Small Text"android:textAppearance="?android:attr/textAppearanceSmall"android:layout_width="match_parent"android:layout_height="wrap_content"android:id="@+id/textViewContent" /></LinearLayout>

ん～。謎。