WDK : Button doesn't work

Hello all,

I have a component with 2 JSP pages. i.e. inside one container.


<pages>         
<filter clientenv="webbrowser">
   <start>/custom/jsp/test/test_start.jsp</start>
   <detail>/custom/jsp/test/test_detail.jsp</add>
</filter>            
</pages>
<class>com.test.MyTestClass</class>

In my "test_start.jsp" I have buttons for some operations, which works fine.

I have a link which directs the user to my "test_detail.jsp" page, where I have some additional buttons for other operations, which doesn't work.

When I click on a link, that lands me to detail JSP page, I use this.


<dmf:link datafield="r_object_id" onclick="onClickLink">
    <dmf:argument name="r_object_id" datafield="r_object_id"/>
</dmf:link>

And this is my onclickLink method, which works just fine.


public void onClickLink (Link theLink, ArgumentList arg) throws DfException {
    DfLogger.debug(this,new java.util.Date() + " - DEBUG: Entered onClickLink()..." , null,null);

    this.setComponentPage("detail");
    // do some other stuff...
}

Once in my test_detail.jsp page, I click on a button, say Cancel to return back to my previous page, in here, I don't even get to my onCancel() method.

here's the button in my test_detail.jsp


<dmf:button onclick='onCancel' nlsid='MSG_CANCEL' runatclient='true' />

And here's the method onCancel(). I don't even see my debug statement. So, I know it doesn't even enter this method.


public void onCancel(Control button, ArgumentList arg) {
    DfLogger.debug(this,new java.util.Date() + " - DEBUG: Entered onCancel()..." , null,null);
    this.setComponentPage("start");
}

What am I missing? Can someone please give me a hint?

thanks.

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Cyborg85

Hello,

in fact the problem is not related to something that you miss, but something too.

On dmf:button if sets the runatclient attribute to true, you specify that the event is handled on the client. This is the main reason why your button does not call the method in the class java.

For more details check the use of javascript events as shown in the Web Development Kit - Development Guide. More information for dmf:button attributes refer to Web Development Kit - Reference Guides.

Best regards

All comments

Cyborg85

Hello,

in fact the problem is not related to something that you miss, but something too.

On dmf:button if sets the runatclient attribute to true, you specify that the event is handled on the client. This is the main reason why your button does not call the method in the class java.

Best regards

Haroon_A

Thank you very much Luca. Indeed that was the issue.

I have another question, which I'd like pose in this thread, and I hope I can get some assistance.

I have a DataDropdownList that I am populating using a DQL query, as follow.

This works just fine, and I get my list alright.


List<String> ls = new ArrayList<String>();
IDfQuery query = new DfQuery();
query.setDQL("SELECT DISTINCT someCode FROM myType");
IDfCollection col = query.execute(this.getDfSession(), DfQuery.DF_EXEC_QUERY);
while (col.next()) {
       ls.add(col.getString("someCode"));
}

DataDropDownList dList = ((DataDropDownList)this.getControl("myDropDown", DataDropDownList.class));
dList.getDataProvider().setDfSession(getDfSession());
ListResultSet rList = new ListResultSet(ls, "dList");
dList.getDataProvider().setScrollableResultSet(rList);

Here's my JSP for DataDropdownlist


<dmf:datadropdownlist name="myDropDown" tooltipnlsid="MSG_MY_LIST">
    <dmf:dataoptionlist>
        <dmf:option datafield="dList" labeldatafield="dList"/>
    </dmf:dataoptionlist>
</dmf:datadropdownlist>

What I want is to have a default value (empty value, or "SELECT") to be selected by default and the user must select a value.

I tried to add an option, using the following but this had no effect.


Option op = new Option();
op.setValue("SELECT");
op.setLabel("SELECT");
dList.setMutable(true);
dList.addOption(op);
dList.setMutable(false);

Can you please advise...

Haroon_A

Nevermind, it was so simple, and I somehow managed to miss that.

I simply added my value to my array List of values, at the beginning like so:


List<String> ls = new ArrayList<String>(); 
IDfQuery query = new DfQuery(); 
query.setDQL("SELECT DISTINCT someCode FROM myType"); 
IDfCollection col = query.execute(this.getDfSession(), DfQuery.DF_EXEC_QUERY); 

ls.add("SELECT");  // I just needed to do this bit.

while (col.next()) { 
       ls.add(col.getString("someCode")); 
}