Re: Problems with table sorting.

Cosma Colanicchia Mon, 05 Jun 2006 23:58:37 -0700

To get sortable columns, you have to use a <t:sortCommandHeader>
around your columns header text. This way your setColumnName will be
called when the user click on the column header. Then, your getNames()
should check the current sort column and apply it to the data it
returns.



2006/6/6, Dewhare, Amol <[EMAIL PROTECTED]>:





Hi All

I am having a need to sort data displayed using <t:dataTable>.

I am using the tomahawk.jar and have placed it into the WEB-INF/lib folder.

I am using the following jsp to display the results.

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<%-- jsf:pagecode language="java"
location="/JavaSource/com/intuit/ims/oasis/ui/jsp/component/search/TablesTest1.java"
--%><%-- /jsf:pagecode --%>

<HTML>
<HEAD>
<%@ taglib uri="http://java.sun.com/jsf/core"; prefix="f"%>
<[EMAIL PROTECTED] uri="http://java.sun.com/jsf/html"; prefix="h"%>
<[EMAIL PROTECTED] uri="http://myfaces.apache.org/tomahawk";
prefix="t"%>
<TITLE>TablesTest1.jsp</TITLE>
</HEAD>
<f:view>
        <BODY>
        <t:dataTable var="results" value="#{pc_TableTest.names}"
sortColumn="#{pc_TableTest.columnName}">
                <t:column id="column1">
                        <f:facet name="header">
                                        <h:outputText id="text1"
value="#{pc_TableTest.columnName}"></h:outputText>
                                </f:facet>
                </t:column>
        </t:dataTable>
        </BODY>
</f:view>
</HTML>


And my backing bean is as below:

public class TablesTest1 extends PageCodeBase {

        private final Name[] names = {
                        new Name("Mariko", "Keeney"),
                        new Name("John", "Wilson"),
                        new Name("Charles", "Randor"),
                        new Name("Anna", "Dupont")
        };
        private String columnName = "Name";
        protected HtmlSimpleColumn column1;
        protected HtmlSimpleColumn getColumn1() {
                if (column1 == null) {
                        column1 = (HtmlSimpleColumn)
findComponentInRoot("column1");
                }
                return column1;
        }
        /**
         * @return Returns the names.
         */
        public Name[] getNames() {
                return names;
        }
        /**
         * @return Returns the columnName.
         */
        public String getColumnName() {
                return columnName;
        }
        /**
         * @param columnName The columnName to set.
         */
        public void setColumnName(String columnName) {
                this.columnName = columnName;
        }
}

The Name class is a standard java class having just 2 variables .i.e.
firstName and lastName as below

public class Name {

        private String firstName;
        private String lastName;

        public Name(String fName, String lName){
                firstName = fName;
                lastName = lName;
        }

        /**
         * @return Returns the firstName.
         */
        public String getFirstName() {
                return firstName;
        }
        /**
         * @param firstName The firstName to set.
         */
        public void setFirstName(String firstName) {
                this.firstName = firstName;
        }
        /**
         * @return Returns the lastName.
         */
        public String getLastName() {
                return lastName;
        }
        /**
         * @param lastName The lastName to set.
         */
        public void setLastName(String lastName) {
                this.lastName = lastName;
        }
}

When I run the jsp, the results are displayed, but t:dataTable does not
provide any mechanism which will allow sorting the firstname.

Should <t:datatable> display an href on the column header to allow sorting?

Any help is highly appreciated.

Thanks
Amol

Re: Problems with table sorting.

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