SelectedIndexChange事件处理程序代码

Question

I am sort of stuck on the implementation.

I am using Windowsforms with Oracle db

I have a page with lot of controls including the DropDownList with subprograms (A,B, C..), a group of CheckBoxes and a yes/no DropDown . On the top of the page there is a DropDown with a list of subprograms (A, B, C..) as mentioned above.

When A is selected from the DropDown the page should pull the existing data from the database, with the selected CheckBoxes and yes/no option selected from the databse. Then the user can make any updates by changing or adding a few selections and then hit save button to navigate to the next subprogram, B and then similar process repeats as above.

I have 2 questions here: 1. I am looking to code the SelectedIndexChange event handler with a functionality to pull the data from the database (I mean user selections already made for CheckBoxes and DropDown

2. I have a nextquestion_click event handler: On clicking this after the end of all the subprograms the user should be able to navigate to the nextquestion.

Please provide me examples with sample code. Thanks in advance for the help.

Answer 1

1. you can use .change() function of jQuery for dropdown. When user will change the index of dropdown then this function will be called. And you can use ajax to pull data from database.
2. for nextquestion_click event, you can use .click() function of button and on click even you can use ajax to pull the next question from database and display it.

Thanks, Amit Prajapati