In MVC pattern, we have to call an input component's getter e. For example in the below zul, user input is saved automatically when you move the focus out of the Textbox.
For the property currentUserwe want to both save user input back to the ViewModel and load value from the ViewModel, so the code becomes:. Therefore, we can save and load other currentUser property with bind like:.
Bind selectedItem to vm. ViewModel also contains View's behaviors which are implemented by methods. We call such a method "Command" of the ViewModel. These methods usually manipulate data in the ViewModel, for example deleting an item. The View's behaviors are usually triggered by events from the View.
The Data binding mechanism also supports binding an event to a ViewModel's command. Firing the component's event will trigger the execution of bound command that means invoking the corresponding command method. For ZK to recognize a command method in a ViewModel, you should apply annotation Command to a command method.
You could specify a command name which is the method's name by default if no specified. Our example has two behavior: "save" and "reload", so we define two command methods for each of them:.
During execution of a command, one or more properties may be changed due to performing business or presentation logic. Developers have to specify which property or properties is changed, then the data binding mechanism can reload them to synchronize the View to the latest state. After we finish binding attributes to the ViewModel's data, we still need to handle user actions, button clicking. Under the MVVM approach, we handle events by binding an event attribute e.
Construct a Form Style Page
After we bind an event to a Command, each time the event is sent, ZK will invoke the corresponding command method. Hence, we should write our business logic in a command method. After executing the command method, some properties might be changed.
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But I couldnt succeed in find out how to read the values. Someone who can help me to read the form-data. I'd appreciate it a lot. Learn more. ZK: zul get value from input form-data Ask Question.
Asked 6 years, 4 months ago. Active 5 years, 9 months ago. Viewed 2k times. I need a help about ZK framework. This is my situation. Thanks in advanced. Sean Connolly 5, 6 6 gold badges 32 32 silver badges 64 64 bronze badges.
I've only ever used the Executions. Active Oldest Votes. Thanks for the response.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Skip to content. Permalink Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Sign up. Branch: master.
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The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Learn more. Questions tagged [zk]. Ask Question. ZK is an open-source Ajax framework for modern Java web applications. Learn more… Top users Synonyms. Filter by. Sorted by. Tagged with. Apply filter. I'm using ZK CE RAS 7, 14 14 gold badges 58 58 silver badges 77 77 bronze badges.
Upload excel file and then send data in excel file to database oracle using zk framework I want to send data to database from selected excel file by using zk framework.
The send button is using to send data from uploaded excel file to data base. Can you give me guide step by step? Fahmi 1 1 1 bronze badge. How to close the Browser Window using ZK framework?
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Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I'm working in a web application using ZK. I'm struggling with a window where I need to render a grid with as much rows as the user specifies. It should be something like:. The textboxes should be empty and when I complete every textbox the user input should be binded to fieldN of every rowModel item, do I make myself clear?
Besides, I don't know if you can mix the approachs in the same application and what are the advantages and disadvantages of doing that. I've seeing the ZK grid demos but all of them are using already populated objects to render the tables, so it's not useful to me.
If someone can give me a hand in this issue, it would be greatly appreciated. If you need more information on the code or the requirements for this problem, please comment it out. It seems there's a lot missing in your current attempt, so I'll try to fill the gaps. If impatient here a runnable example on zkfiddle. Since you were talking about binding component attributes to model values I'd suggest using ZK's DataBinding which integrates nicely into the MVVM development pattern sorry for the link, but that's not a one-liner.
As you can see in code, adding, re moving a row inside the model requires rudimentary operations the grid will update its child-rows automatically :. The template variable rowModel variable represents the rowModel object.
BTW: the forEach-attribute you were trying to use previously is used for static ui composition at zul parse time where no dynamic control is required.
For dynamic cases use ListModel List in combination with templates. Learn more. ZK how to add grid based on user input Ask Question. Asked 2 years, 1 month ago. Active 2 years, 1 month ago.
Viewed times. Thanks in advance for your answers. Alvaro Pedraza. Alvaro Pedraza Alvaro Pedraza 1 1 gold badge 15 15 silver badges 36 36 bronze badges. Active Oldest Votes.
As you can see in code, adding, re moving a row inside the model requires rudimentary operations the grid will update its child-rows automatically : rows. Sign up or log in Sign up using Google.In this chapter, we will demonstrate a common scenario: collecting user input in form style page. The target application looks as follows:. It is a personal profile form with 5 different fields.
Clicking the "Save" button saves the user's data and clicking the "Reload" button loads previous saved data back into the form.
These two approaches are mutually interchangeable. You can choose one of them depending on your situation. Please refer to Approach Comparison. Introduction 0. Overview 0.
Project Structure 1. User Interface and Layout 1. Build the View 1. Include a Separate Page 1. Apply CSS 2. Controlling Components 2. Fast Prototyping 2. In Controller 2.
By Data Binding 3.
Handling User Input 3. MVC Pattern 3. Construct a Form Style Page 3. Populate Components with Data 3. MVVM Pattern 3. Load Data into Components 3. Implementing CRUD 4. MVC Pattern 4. MVVM Pattern 5.
We'll see how they can be initialised with their controller's variables, and how to utilise their default formatting and constraint checking features. The content of a Textbox is accessible through its value attribute. Developers may impose constraints on the data it accepts by specifying its constraint attribute. An onChange event is fired when content of the Textbox 's modified.
Every input component's getValue method returns its corresponding type. For example, Textbox returns Stringand Intbox returns Integer. Datebox allows users to input date and time in a specific format. User input can then be retrieved as a Date object. Date format and constraint can be configured through their respective component attributes. The Timebox component can serve as an alternative to Datebox whenever only hour and minute parameters are relevant. Like other input components, an onChange event is triggered when the value is changed in Datebox and Timebox.
Similarly, the updated value can be obtained using the getValue method. As their names suggest, Intbox accepts integer values while Doublebox accepts decimal numbers; both support the format and constraint attributes. As with other input components, the method getValue is called to retrieve the component's current value and an onChange event is fired whenever the value's modified.
Spinner is similar to Intbox but allows users to choose from a range of values. It provides two buttons to increase or decrease the current value. It also supports the onChange event and the getValue method.
Almost every input component supports in place editing. This feature renders input components like ordinary labels until the input component's selected, which the components would then morph back into the appearance of usual input component with boxed borders. Please follow this link to view the complete list of input components available in ZK.
Search Result. Getting Started. Textbox The content of a Textbox is accessible through its value attribute. Datebox Datebox allows users to input date and time in a specific format. Intbox and Doublebox As their names suggest, Intbox accepts integer values while Doublebox accepts decimal numbers; both support the format and constraint attributes.
Spinner Spinner is similar to Intbox but allows users to choose from a range of values. In Place Editing Almost every input component supports in place editing. DateFormat; import java. DecimalFormat; import java. NumberFormat; import java. SimpleDateFormat; import java.