Geek asks and answers

Dynamically changing cell color or style: datatable in JSF

I have a datatable where I want to change the color of a cell based on some analysis that runs in the content. The table is associated with an array of Comment objects, which I provided String cssClass, which is updated after the analysis starts. This is what I tried connecting to the rowClasses property for datatable. It does not work, and I think the problem may be that I cannot access the variable created for each datatable row from inside the datatable declaration.

Valid code:

<h:dataTable value="#{post.comments}" var="comment" class="hs-table" rowClasses="#{comment.cssClass}" >
             <h:column>
                   #{comment.name}
             </h:column>
             <h:column>
                   #{comment.email}
             </h:column>
             <h:column>
                   #{comment.msg}
             </h:column>
 </h:dataTable>

Comment class:

public class Comment {
private String msg;
private String email;
private String name;
private Date date;
private String cssClass;

public Comment(){
    cssClass = "normColumn";
}
epublic String getCssClass() {
    return cssClass;
}

public void setCssClass(String cssClass) {
    this.cssClass = cssClass;
}

}

When cssClass is updated in a managed bean:

if(tone>0)
            c.setCssClass("commentPos");
        else if(tone<0)
            c.setCssClass("commentNeg");

A class is never assigned. Am I doing something wrong, or is it just not possible?

+5
source share
1

JSF <h:dataTable> rowClasses, , . . , Tomahawk PrimeFaces, , <t:dataTable> <p:dataTable>.

JSF <h:dataTable> , , . :

public String getRowClasses() {
    StringBuilder rowClasses = new StringBuilder();

    for (Comment comment : comments) {
        if (rowClasses.length() > 0) rowClasses.append(",");
        rowClasses.append(comment.getCssClass());
    }

    return rowClasses.toString();
}


<h:dataTable ... rowClasses="#{post.rowClasses}">

. :

+9

More articles:


All Articles