private void InitClass() {
this.columnCategoryID = new global::System.Data.DataColumn("CategoryID", typeof(int), null, global::System.Data.MappingType.Element);
base.Columns.Add(this.columnCategoryID);
this.columnCategoryName = new global::System.Data.DataColumn("CategoryName", typeof(string), null, global::System.Data.MappingType.Element);
base.Columns.Add(this.columnCategoryName);
this.columnDescription = new global::System.Data.DataColumn("Description", typeof(string), null, global::System.Data.MappingType.Element);
base.Columns.Add(this.columnDescription);
this.columnPicture = new global::System.Data.DataColumn("Picture", typeof(byte[]), null, global::System.Data.MappingType.Element);
base.Columns.Add(this.columnPicture);
this.Constraints.Add(new global::System.Data.UniqueConstraint("DataSet1Key1", new global::System.Data.DataColumn[] {
this.columnCategoryID}, true));
this.columnCategoryID.AutoIncrement = true;
this.columnCategoryID.AllowDBNull = false;
this.columnCategoryID.Unique = true;
}