I have a special row in my table for errors:
<tr>
<td colspan="2"><p:message for="questionId" id="msgQuestion" /></td>
</tr>
How can I set this so the row is only displayed when there is an error?
In first place i will recommend not to use table to display layout elements
after that the ellement will apear even if the message is not present, if you are obliged to use it you can use som think like this in JS:
<script type="text/javascript">
window.onload = function() {
hideTdMessage();
};
hideTdMessage(){
var message = document.getElementById(msgQuestion);
if(message){
//the msg is present
}else{
//the msg is not present
}}
</script>
Or You can use your MBean to change the CSS class it's better than using JS.
But i will say that the best solution is not tu use the tabel.
Hope it helped
Use a JSF component and the property rendered
rendered="#{not empty facesContext.messageList}"
Related
I am fairly new to Grails and frameworks in general, so this is most likely a very basic problem. The only promising looking solutions I was able to find were working with the Tag, which is apparently deprecated in Grails 3. Similar questions do exist, but all from the time when was still a thing.
I am trying to program a way of displaying products that are grouped in subcategories which are then grouped in categories. When my page loads the subcategories and categories are requested from my database and selection options (Select-tag and checkboxes) are rendered in the view.
When one of the checkboxes representing the subcategories is checked i need to run a database query to get the product information and update an HTML-element by rendering a template for every row I get back. I have a controller action that does all that. My only problem is that I need a way to call the controller action whenever one of the checkboxes is checked.
I could maybe work around it by using actionSubmit and a hidden submit button that is clicked by javascript whenever a checkbox is checked, but that doesn’t seem like a proper solution.
I am probably missing some very basic functionality here but I did already thoroughly search and haven’t come across a proper solution by now, probably because I didn't use the right search terms. I would be so happy, if anyone could help me with this. Thanks a lot already!
The following example uses a javascript function activated in response to the checkbox being checked/unchecked, the value of which is passed to an action from which you can do whatever with the value of the checkbox, run your query etc. At present the action renders a template to update the view with the database results.
index.gsp
<!DOCTYPE html>
<html>
<head>
<meta name="layout" content="main" />
<script type="text/javascript">
$(document).ready(function(){
$( '#cb' ).click( function() {
var checked = $(this).is(":checked");
$.ajax( {
url: "/yourController/yourAction?checked=" + checked,
type: "get",
success: function ( data ) {
$( '#resultDiv' ).html( data )
},
error: function(jqXHR, textStatus, errorThrown) {
console.log( 'Error rendering template ' + errorThrown )
}
} );
})
});
</script>
</head>
<body>
<div id="resultDiv"></div>
<g:form>
<g:checkBox name="cb" />
</g:form>
</body>
YourController
class YourController {
def yourAction() {
// you may want to do something with the value of params.checked here?
def dbResults = YourDomain.getStuff()
render ( template: 'theTemp', model: [dbResults: dbResults] )
}
}
_theTemp.gsp
<table>
<caption>Table of stuff</caption>
<g:each in="${dbResults}" var="aThing">
<tr>
<td>${aThing}</td>
</tr>
</g:each>
</table>
Let's say I have
<p:outputPanel/>
What I want to do is to specify rendered attr using js method not serverside.
This is for improving performance.
So I need something like :
<p:outputPanel rendered = "someJsFunction()"/>
What is the solution?
rendered propery is processed at server side and if it resolves to false, the element is not added into the html document. So javascript can't even find the element to display or hide because it is not created.
The only thing you can do is to remove the rendered property and change the display property of the element with javascript.
<div id="myDiv">My Content</div>
<button onclick="myFunction()">Click Me</button>
<script>
function myFunction() {
document.getElementById("myDIV").style.display = "none";
}
</script>
Well, you can have the same effect at page load cause rendered attribute is resolved at Server Side only , So using jQuery you can do it like
$(document).ready(function() {
document.getElementById("YourPanelIdHere").style.display = "none";
});
and it will be not displayed.
My Model :
App.Contacts = DS.Model.extend({
name : DS.attr('string'),
number : DS.attr('number')
});
This is how i save a record :
App.AddController = Ember.Controller.extend({
actions : {
addContact : function(){
var post = this.store.createRecord('Contacts',{
name : this.get('name') ,
number : this.get('number')
});
post.save();
}
}
});
Acc to Ember's offical guide, this would send a POST request to /Contacts , so to handle it, i used this in nodejs/expressjs
app.post('/contacts',function(req,res){
posts.push( req.body);
console.log(posts);
res.send({status: 'OK'});
});
Now i wish to retrieve it, into another template called all so i used :
App.AllRoute = Ember.Route.extend({
model : function(){
return this.store.find('Contacts');
},
setupController : function(controller,model){
controller.set('contactList',model);
}
});
Acc to Emberjs guides, model hook supports promises out-of-the-box . so i assumed this should work.
My template :
<script type="text/x-handlebars" id="all" >
Hello
<table>
{{#each contact in contactList}}
<tr>
<td>{{contact.name}} </td>
<td>{{contact.number}} </td>
</tr>
{{else}}
<tr><td>No contacts yet </td> </tr>
{{/each}}
</table>
</script>
Question
But the model returns nothing, i understand that this.store.find('Contacts') doesn't return a javascript array, but essentially and object , implimenting Ember.Enumerable
But on the server side, the posts is an javascript array, therefore there might be an type mismatch between then. how to resolve this?
EDIT:
To avoid any confusions in client side Ember code , This works properly, so there is some problem with the round trip to server.
App.AllRoute = Ember.Route.extend({
model : function(){
return this.store.all('Contacts');
},
setupController : function(controller,model){
controller.set('contactList',model);
}
});
If you could provide a jsfiddle, it be nice. I'm not sure whether contactList is defined or not and whether the alias for that controller is actually defined. So based on what I see, I think the problem is you're iterating over a controller that does not have the model properly defined.
I'd suggest trying to do:
{{#each}}
<tr>
<td>{{contact.name}} </td>
<td>{{contact.number}} </td>
</tr>
{{else}}
<tr><td>No contacts yet </td> </tr>
{{/each}}
If you really want to use the contactList controller, then you need to make sure that the App.AllController "needs" the contactListController.
App.ContactListController = Ember.ArrayController.extend({}) // needs to be an array controller
App.AddController = Ember.ArrayController.extend({
needs: ["contactList"], // controller's used within this controller
contactList: Ember.computed.alias("controllers.contactList"), // needed to iterate over the model how you're doing it.
Both of these solutions should work assuming your data is actually loaded in Ember Data. You might want to check the "data" tab on the ember-data console. If you don't have that browser extension installed, do it. It's incredibly useful.
If all else fails, try logging to verify expected values using {{log contactList}}
Good luck
I'm fairly familiar with jQuery, but I'm working on a project in YUI, which I am totally new to, and am not sure how to accomplish this.
In essence, I need to display a js popup if a span element exists that has the text "Inactive" in it and is several steps down the tree from a div with a class of "list_subpanel_cases".
This is a rough example, but the point is, this is dynamically built, so my only definite selectors are the div with the class and the descendant span with a text value of "Inactive".
<div class="list_subpanel_cases">
<table>
<tbody>
<tr>
<td>
<span>Active</span>
</td>
</tr>
<tr>
<td>
<span>Inactive</span>
And I need to find out if any spans exist with the text "Inactive".
Hope this isn't too confusing!
It appears that CSS3 selectors can't examine content (only attributes) so you'd have to use a selector for the candidate span tags and then use code to look at the content for a match. Here's one way to do that:
function findInactive() {
var found = null;
Y.all(".list_subpanel_cases span").some(function(node, index, nodeList) {
if (node.getContent() == "Inactive") {
found = node;
return(true); // stop looking for more matches
}
return(false); // keep looking for more matches
});
return(found);
}
if (findInactive()) {
// execute code here when the Inactive span exists
}
You can see it work here: http://jsfiddle.net/jfriend00/BVzqL/.
how can I fill "MyUserName" on
<td width="18%" class="more"><div align="right">¿¿¿¿¿¿ </div></td>
<td width="82%">
<font color="#FFFFFF" face="MS Sans Serif, Tahoma, sans-serif">
<input type=text name="QTitle" size=51 maxlength=100 class=violet>
</font>
</td>
i try in c# but it not work please help
private void webBrowser2_DocumentCompleted(object sender,
WebBrowserDocumentCompletedEventArgs e)
{
}
private void LoadProfileInformation()
{
DataSet dsNew = new DataSet();
//Some code to fetch information if you store it in a DB
//else you can put in static info if you may want.
//so you will nto need the dataset.
QTitle.Text = "MyUserName";
}
You can store it in the class then access it with code behinds like <%= myVar %> in your front end.
if you want to modify the values of divs on the front end then you need to use asp tags like
<asp:label runat="server" name="Qtitle"> </asp:label>
First of all you really need to think about moving to newer versions of XHTML/HTML! (I suggest you that because of your markup code).
In the other hand, in order to get your "QTitle" text set from server, you'll need to set "runat" attribute to "server" in your input, but, if you're using standard (X)HTML elements, you won't have such property "Text".
I suggest you to use a server control like TextBox which has the whole "Text" property:
<asp:TextBox ID="QTitle" runat="server" CssClass="Violet" />
Some server code-behind:
QTitle.Text = "Hello world";
Another suggestion is you won't be setting any property after PreRender ASP.NET Page life-cycle event.
Is the mark-up at the top of your question the resulting html or the source code for the form you are working with? If this is in-fact your asp.net form, try replacing the input tag with the following...
<asp:TextBox id="QTitle" runat="server" />
If the form is properly linked to the C# codebehind file you are using, QTitle.Text should now be accessible.