Description: A person's progress is a bit by bit accumulated. Then summarize the extracurricular practice.
- Sometimes, like this, 3 Combox, when the first Combox is selected, the second combox displays the corresponding content according to the first selection result. In fact, you all know. The Change event is available.
- I always have a question about the login form. Is the login form will have a role to select this feature. I always thought this function could be removed. My idea is: for some standard industry, the account of ordinary user and administrator account is differentiated. So we can completely according to the different characteristics of the account to distinguish what type of role users are, so that the user will not have to choose the role of the login, a few of the functions of the operation. For example, according to the length of the account to divide. Maybe there's something I didn't think about, and if my ideas are biased or wrong, please let me know.
- Sometimes we need the program to display a welcome interface when it starts running, and then the interface automatically shows up for a few seconds before it disappears. This is accomplished using the following method.
- We are shopping in some online shopping malls, found that the middle of the show is a boutique goods, is moving back and forth. I do not yet know how they are implemented, but on the form application, I emulate them.
- Next, I would like to say a few words about the use of tablepage containers. I will correspond each item of the menu to each page of Tablepage. What I want to accomplish is, click on which menu item, jump to which page above. That's how I realized it:
- Although this is a client, I use a web link.
- Tree-shaped menu, I believe everyone has heard of it. Here, I use it as my search function.
- Update data using SqlDataAdapter's update.
- Sometimes we want to do some post-processing when the program starts to close, but it's not closed.
C # Extracurricular practice--campus second-hand platform (technical article 2)
