/// <summary> /// Returns the zero-based index of the first occurrence /// of the specified <see cref="ISchemaEditorNode"/> in the /// <see cref="SchemaEditorNodeCollection"/>. /// </summary> /// <param name="value"> /// The <see cref="ISchemaEditorNode"/> object /// to locate in the <see cref="SchemaEditorNodeCollection"/>. /// This argument may be a null reference. /// </param> /// <returns> /// The zero-based index of the first occurrence of /// <paramref name="value"/> in the <see cref="SchemaEditorNodeCollection"/>, /// if found; otherwise, -1.</returns> /// <remarks> /// Please refer to <see cref="ArrayList.IndexOf"/> for details. /// </remarks> public int IndexOf(ISchemaEditorNode value) { int count = _data.Count; ISchemaEditorNode[] items = _data.Items; if ((object) value == null) { for (int i = 0; i < count; i++) { if ((object) items[i] == null) return i; } return -1; } for (int i = 0; i < count; i++) { if (value.Equals(items[i])) return i; } return -1; }