C# (CSharp) book_tableTableAdapter.DeleteQuery Beispiele

Beispiel #1

Datei: admin.aspx.cs Projekt: ExcitingFrog/BookManagementSystem_xingo

    protected void delete_book(object sender, EventArgs e)//删除单个书籍记录
    {
        Button btn = (Button)sender;

        string id = btn.CommandArgument;


        int bookid = Int32.Parse(id);
        book_tableTableAdapter bookadpr     = new book_tableTableAdapter();
        locationTableAdapter   locationadpr = new locationTableAdapter();

        try
        {
            locationadpr.DeleteQuery(bookid);
            bookadpr.DeleteQuery(bookid);
            bookGridView.DataBind();
        }
        catch
        {
            Label_delete_book.Text    = "不能删除有借阅记录的书";
            Label_delete_book.Visible = true;
        }
    }