C. Elementary problems of bookstore management system

You don't have to use the upstairs method without three floors.

See a blank solution in three layered words! Once the solution is built, Tools=>Options=> Projects & Solutions=> Total Display Solution Options=>OK! Then right-click on the solution on the far right to add New!

Then add three layers. Remember that the path should be selected under the **. In the end, Mr. Cheng is working on the project with the following solution.

Do you do it with a three-layer structure or do it in normal mode, if you do it in normal mode, then just create a new one**.

If you use three layers, you should create a new class library, and finally create a new **.

Since it's based on a web management system, it's the best thing to do.

Remember to select the language type as C

See how to do it. If it's a three-tier one, build the solution first, and then build it....If you don't use it, you can just build it.

Select **,**, and the location is the file system. The language is c

Web Application File System.

Visual Studio version: Enterprise 2015

.NET version:net

SQLSer version: 2008R2

Topics in this section

In the fourth section, Limb Rental mainly talks about the addition, deletion, modification and search page of logged-in users, and in this lesson, we will take a look at the entry of books. To put it simply, before the purchase, sale and storage of books, it is necessary to enter the book information first, and then the data can be purchased, sold and stored.

Create a new book table

First of all, you need to create a new book, and the basic information is the book number, title, publisher, author, and selling price. The ISBN number is used as the only value and cannot be repeated. The data sheet is as follows:

bookid: book ID, int type, auto-increment.

bookno: ISBN: ISBN, primary key, unique value.

bookname: The title of the book.

bookpress: Publishing House.

bookauthor: Author.

createtime: the time when the creation was created.

bookcount: quantity.

bookprice：**。

bookstatus: status, 1 is normal, 0 is off the shelves.

Page design

A new book list menu has been added to Book Management.

In the book list, you can view the information of all current books, and you can add, modify and delete them.

Features**

The new page can add book information, just fill in the book number, publisher, book title, author and **, the number does not need to be filled, and it can be automatically calculated according to the purchase and sales. Prevent manual input errors. Save**:

Because the new sum is the same page, there will be a type parameter to distinguish the new sum with, type is equal to 1 is new, type is equal to 2 is. The closure of the page, drag and drop, the previous chapter is introduced, and it will not be repeated.

The above is the new sum in the list page, you can see that when you add it, the value of type is given as 1, and when you update it, the value of type is 2, and you also give the bookid, so that you can find the information of the corresponding book through the bookid.

Run the results

Wrap up the preview

Reply to "C Winform Interface Design Tutorial" to get the Gitee source code ** address, mainly to explain the use of Winform basic controls. The use of this basic control is covered.