What I want now, is to iterate this matrix printing every element inside table's cell. I have take a look to logic:iterate tag, but, as far as I know, this tag doesn't works with matrix.
How can I handle this issue? Resolvedusing nested:iterate tag rather than logic:iterate.
Learn more. Struts and nested logic:iterate tag Ask Question.
Asked 7 years, 6 months ago. Active 1 month ago. Viewed 6k times. Best regards. What kind of object is it? How I have to create the second iterator?
Good to hear you found the solution. Active Oldest Votes. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Socializing with co-workers while social distancing.
Podcast Programming tutorials can be a real drag. Featured on Meta. Community and Moderator guidelines for escalating issues via new response….
Feedback on Q2 Community Roadmap. Triage needs to be fixed urgently, and users need to be notified upon…. Dark Mode Beta - help us root out low-contrast and un-converted bits. Technical site integration observational experiment live on Stack Overflow.
They are not the same.
Struts LOGIC Iterate Tag ( )
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. But now I need to make the "quantity" part modifiable. The user should be able to update that field, press submit and when its sent to the server, "myList" should automatically update with the new quantities.
I've tried searching for help on this but all I keep finding is examples on how to display data only, not modify it. Any help would be appreciated. So this is tricky, because there are many things to get done in order for it to work. In this case, you would write 2 extra get and set methods for the "myListI" :. I think Th0rndikes answer is mostly correct.
My implementation is slightly different, so it might be worth trying this as well. In summary, I didn't use Type in the iterate tag, using the property tag instead.
In the bean adding a getter with matched the name of the iterate ID in the JSP param with an index as a method parameter did the trick. Struts html tags have an indexed attribute which will generate the appropriate html to populate a collection of beans when the form is submitted.
The trick is to name the id attribute to the same as the indexed property. When the form is submitted BeanUtils will first call the getSkills index method to retrieve the indexed bean followed by setSkillId.
Theoretically, the indexed attribute of the struts html tags could be used for this:. Valid only inside of logic:iterate tag. If true then name of the html tag will be rendered as "id. Number in brackets will be generated for every iteration and taken from ancestor logic:iterate tag. But, there is no corresponding indexed attribute on the html:errors tag, which limits its usefulness. Also, the required combination of idname and property attributes can be rather confusing.How to instantly learn new skills in RPG's - Ability Point
I found it easier to use jsp scriptlets to generate the property name including the iteration index. The following code requires that your form has a string array property "quantity".
Learn more. Struts logic:iterate input field Ask Question. Asked 7 years, 11 months ago. Active 4 years, 11 months ago.
Viewed 21k times. I currently have the following code and the data is displayed fine.Struts LOGIC tag library provides tags that are useful in managing conditional generation of output text, looping over object collections for repetitive generation of output text, and application flow management.
The collection to be iterated must be specified in any of the form like a runtime expression spcified as the value of the collection attribute,as Jsp bean spcified by the name attribute or as the property, specified by the propertyof the JSP bean specified by the name attribute If the collection you are iterating over can contain null values, the loop will still be performed but no page scope attribute named by the id attribute will be created for that loop iteration.
Create of Modify the index. Create an Jsp page and name it as LogicIterateTag. It is the output page for user which contains the logic iterate tag to iterate through the collection and display the result as specified. Create a Employee class Employee. Create a Form bean. Form bean is used to hold the properties of the submitted form which is a sub class of ActionForm. It contains a List of Employee objects which are set from the action class.
Simple Action class LogicIterateAction. Here we create and set the employee objects to the form bean. Create or modify struts config file struts-config. Struts-config file contains the information about the configuration of the struts framework to the application. Your email address will not be published. Struts LOGIC Tag Library Struts LOGIC tag library provides tags that are useful in managing conditional generation of output text, looping over object collections for repetitive generation of output text, and application flow management.
The name of a page scope JSP bean that will contain the current element of the collection on each iteration, if it is not null. The name of a page scope JSP bean that will contain the current index of the collection on each iteration. The maximum number of entries from the underlying collection to be iterated through on this page.
This can be either an integer that directly expresses the desired value, or the name of a JSP bean in any scope of type java. Integer that defines the desired value. If not present, there will be no limit on the number of iterations performed.
The name of the JSP bean containing the collection to be iterated if property is not specifiedor the JSP bean whose property getter returns the collection to be iterated if property is specified. The zero-relative index of the starting point at which entries from the underlying collection will be iterated through. If not present, zero is assumed meaning that the collection will be iterated from the beginning.
Name of the property, of the JSP bean specified by name, whose getter returns the collection to be iterated. The bean scope within which to search for the bean named by the name property, or "any scope" if not specified.
Fully qualified Java class name of the element to be exposed through the JSP bean named from the id attribute. If not present, no type conversions will be performed.
NOTE: The actual elements of the collection must be assignment-compatible with this class, or a request time ClassCastException will occur.The collection can be an. If property attribute is specified one of the fields of the object will have its getter method called to return the collection to be iterated 4. In the IInd wayname attribute is used to specify the name of a collection object which can be in any scope.
In the third wayname and property attributes are used to specify the name of a object and its field whose getter method will be called to return a collection to be iterated. Same code written in the Action are as follows. Sample code to be written in action. Consider the following example. The email field should…. Struts 1. The following tutorial explains the techniques to upload files to a server using Struts 1.
You must be logged in to post a comment. Related Posts Ajax code to load combo values dynamically based on the selection of another combo. Example Code in Struts 1. File upload in Struts 1. File upload and copy code using struts 2 example.
If you are using struts 1. Multibox tag in struts with example. Create dynamic check boxes in struts Struts multibox tag is useful when you need to create group of check boxes dynamically…. Leave a Reply Cancel reply You must be logged in to post a comment.JasperException: Cannot find bean listMsg in any scope org. HiIn the given example while Iterating a list, we are not doing any type casting to User.
How will this JSP know about user class. What happend when we write our own general iterate logic to iterate list do we need to type cast. Hi Sha, He did not provide a complete listing. There are lots of configurations missing from this example, but basically you have a struts-config. Wat if i want to add button controls to the logic iterate, like the next and prev buttons.
Hi, I am stucked in my project. Actually i have 5 rows of dropdown lists like Project,startorder,cost. I am saving the data if i add 10 rows dynamically. But i am stucked in displaying 10 rows i. Thank for your good articles. Hope you can help me! Kindly provide some idea to get the new values in the textbox for all rows in the table and provide to the Action Class Using Struts Framework.
I wanna print a value using tag. Please guide me on this. JasperException: javax. ServletException: javax. JspException: Cannot find message resource. Can you help me. Thank you very much. By mkyong April 28, Updated: March 8, Download it — Struts-logic-Iterate-example. Follow him on Twitter. If you like my tutorials, consider make a donation to these charities. Read all published posts by mkyong.
Most reacted comment. Hottest comment thread. Recent comment authors.
Struts logic:Iterate Tag with example code. Iterating ArrayList in JSP using Struts
Struts Tutorials Tutorials. Tash Khan. Ashok Parmar. List UsersThanks, Sha. Mao Duy. Repair Kindly provide some idea to get the new values in the textbox for all rows in the table and provide to the Action Class Using Struts Framework. Hi, I wanna print a value using tag.