How to use s:iterator s:include s:param
This display properly: I refactor to the following two files, which display nothing. I have other codes in items.jsp which confirms that items.jsp is being used in showitems.jsp. Please help. Thanks. items.jsp: showitems.jsp:
RE: Array of submit buttons
>From: Prasanth
>Sent: Friday, February 15, 2019 3:02 AM
>To: Struts Users Mailing List
>Subject: Array of submit buttons
>
>Hi,
>
>I have a form with tabular data and need to have delete buttons for each row.
>So
>have a ArrayList in the action and the form has name="delete[%{#rowNumber}]" value="Delete"/> inside an iterator. When the
>user clicks on the Delete button the ArrayList was not populated. So
>changed the ArrayList to a Map. Interestingly the map is populated but the
>value
>in the map is a String array, rather than a single String, with one element
>having
>string Delete.
>
>Do s:submit work differently from s:textfield when it comes to saving data to
>ArrayList or Map?
No, AFAIK finally both are http parameters.
I expect ArrayList to work also e.g. for rowNumber=3, I expect delete={null,
null, null, "Delete"} :( Could you please set devMode and increase log levels
to WARN and check the output? What Struts version do you use?
Regards.
RE: Map backed form
I think a file named yourActionClass-conversion.properties beside your action with following contents should help [1]: Key_xxx=java.lang.Long Element_xxx=java.lang.Double (where xxx is the field name of the collection property in your action or object) Regards. [1] https://struts.apache.org/core-developers/type-conversion.html#collection-and-map-support >-Original Message- >From: Prasanth >Sent: Friday, February 15, 2019 9:08 PM >To: user@struts.apache.org >Subject: Re: Map backed form > >Does struts follow a specific logic as to what the data type of the object >would be >based on user input? Meaning when is it converted to a Double vs Integer vs >String? > >Thanks, >Prasanth > >On 2/15/19 7:45 AM, Lukasz Lenart wrote: >> pt., 15 lut 2019 o 00:17 Prasanth napisał(a): >>> I have a map (Map) but based on the data entered by the >>> user the value in the Map is Double or String. Example if the user enters a >value of 10 then it is coming in as double but if the user enters 10.5 then a >string >is present in the value. Does Struts2 look at the data types of the key and >value of >the map and set the key and values in the map accordingly? >> Struts is not a problem here, generic types are erased at runtime, so >> basically this a Map at the end >> https://docs.oracle.com/javase/tutorial/java/generics/erasure.html >> >>> If not, what is the best practice for the declaration of Map, is there a >>> way to >force Struts2 to only have Double objects as values? >> I would probably use a custom type instead of Double and implement >> converter for it, or even replace the Map with a List of custom >> objects. >> >> >> Regards
