Develop Reference

Preventing Apex Button Double click

Hi I have a button that inserts empty records into an interactive grid. I want to prevent the user from being able to double click that button because it populates duplicate rows. I have a server side argument that says if there are rows the button does not appear however they are still able to double click the Populate_tables button before it vanishes. If there are any other solutions to this please sound off. I've tried everything from javascript to server-side but they are still able to double click no matter what. Here are the before and after pictures of the table.

$('#btnPopulateTbl').dblclick(function(e){
e.preventDefault();
});
The above code prevents the double click for a button. This is in jQuery.

Oracle Apex does not offer this functionality as a setting or etc.
However you can use
$('#button').click(function(event) {
if(!event.detail || event.detail == 1){
// This will be executed once even user clicks multiple times
}
});
Note that your selector must be the id or the class you provide to this button.
By default 'add row' button's classes are:
class="a-Button a-Toolbar-item js-actionButton"

Another solution would be to have apex handle this. Suppose this is on page 1.
Create a page item P1_POPULATE_ROWS_CLICKED with a default value of 'N'
In the page process that populates the table, add the following line before the actual load:
:P1_POPULATE_ROWS_CLICKED := 'Y';
Add a condition to the page process that populates the table of "Item not equal to value", P1_POPULATE_ROWS_CLICKED , Y
Yet another solution is to only execute the insert statement if no rows exist with that condition yet. I can't show you how to do it because you didn't show how the table is populated but happy to do so if you edit your question. This last option is propably the most suitable.

select asp.net grid view row on jquery dialog box and populate on text fields on parent form

I have an asp.net page that contains gridview. It has one or more record. If a user choose a row, it will close jquery dialog modal and populate parent form
I have attached the sample. It does not look nice, but it is easier for me to create in word than try to prototype on ASP.NET
Once user click the button (pick this one), let's say first one, id (1) and name (a) will be populated on the parent page
I have researched many websites. Most websites have helpful hints if there is a static button. When a user click the button, something happen. However, the griview is constructed dynamically, so are the buttons. Obvious, binding the button on jquery dialog box model will not work.
What is the best approach to handle this
Thank you

Why wont Jquery work? I'm sure the buttons have an id or name..
`$('#tableID tbody').on("click", "tr td:nth-child(1) a", function () {
var $row = $(this).closest("tr");
var ID = $row.find('$row td:nth-child(2) label').val();
$.get("/Home/MyModal/" +ID, function (data) {
$("#modalDiv").html(data);
$("#modal").modal('show');
});
});`
In the example I make a call to the mvc controller which returns a partial view loaded with the modal data. That html data returned from the controller is then passed to a div with an ID of 'modalDiv'. Then I open the modal using modal.show event.
Not sure if this is what you were looking for but this will load a modal with the information

I did a lot research. I ended using postmessage method.
http://benalman.com/code/projects/jquery-postmessage/examples/iframe/
I really don't like this solution. I am doing research on security risk related to postmessage. if anyone has better, let me know.
Here is the algorithm
1) Once the user clicks one of the links/buttons (remember they can be multiple rows), save the current row information in the hidden fields
2) call javascript to postmessage (see the link)
3) in the parent listen to the event (see the link)
4) assign the hidden fields to the various text fields on the parent form
5) oh reference the fields in iframe is little bit tricky. Luckily, someone on the internet shows me this trick
http://codedisplay.com/jquery-to-get-set-read-access-iframe-content-textbox-value-data-using-asp-net-c-vb-net/
6) close jquery dialog box
My original plan was creating some kind of events on dialog box during the creation to do all the work. I am hoping people here can help me that.
At least i figure out the solution. I just need to address the security issue.

How to reload JSP with changed actionbean variable using Stripes

I am new to working with Stripes. I have a dropdown ("show ## recordrs per page") and a paginated table on the JSP page and I want to display as many records per page in this table, as the value selected in the dropdown.
The action bean has a variable "recordsPerPage" and I am not able to figure out a way to set the value of this variable and reload the table, so as to change the number of records that are displayed per page. Please help.
---- Additional Info -----
The table that I use is a displaytag table, which accepts a PaginatedList. This table is within a stripes form.
-- EDIT:
What I did is, I added a <stripes:hidden/> with the name "recordsPerPage" and set the value to be the number of records I want to display. I also added a <stripes:submit> to the same form. The "name" attribute of this submit button is the method name of the action bean I have to call. When I click on this button, I am able to do what I want. But now, I am unable to do it through javascript. Please help.

Due to some reason, calling Dom.get('submitButton').submit() or Dom.get('myFormId').submit() does not fulfill the intended purpose. Taking a clue from being able to do what I wanted from the submit button click, I made this submit button hidden and the called click() on this button from javascript. Thus Dom.get('submitButton').click() produces the intended result. If someone can give me the explanation of why the submit method did not result in expected behavior, that'll be great.

Updating gridview's drop down lists using JavaScript?

I have a gridview with several fields. Fields in question are PreviousPoints, GainedPoints, TotalPoints. In the edit mode PreviousPoints is not editable, just data bind, GainedPoints is a drop down list and Total Points is a Drop Down List.
When GainedPoints drop down list selected value changes, I need the TotalPoint selected value to be set to the value of PreviousPoints control + GainedPoints selected value.
But, I cannot refresh the whole page using post back.
How can it be done using JavaScript or something similar without reloading the page?

you can use the onselect() function in javascript and have your computations there.

add new option to select drop down list using jsp

can anyone please suggest , how to add new option to drop down list (using select tag in html) so that user can enter the new value and on submit it should be appended to the existing list ..i am able to populate it's option list via DB dynamically and it's working properly
i am having 5 drop down mutually exclusive category lists in a single table row and i am providing them some initial options.Now i want that if the list contains user's required option then user can select from existing one ...else it should be able to add a new entry to that list & it should be simultaneously updated in DB on submit.

Follow this steps
As you are populating the drop down from databse . So its better to add the value in database only.
I think your user will be entering the value in a text box. So on submit call a method or servlet which can be used to add the value in the database field from which you are populating the drop down.
After updation make your servlet to return on the same page.
Now you can see your new option in the drop down.
Update on further problem explaination
For your problem do one thing
Give a text box in last option of each dropdown.
Select an event in which after the new value entered by user in that text box an java script function can be triggered line onmouseout.
In that function call get the text value .
Now call your servlet or method or whatever you are using to update the db with value value in the column corresponding to that drop down using Ajax or normally.
Refresh the page.

hiii,
finally it's done.
i used following function as-
function abc()
{
var myoption = document.createElement("option"); //works with both mozilla and IE
myoption.text ="mytext";
myoption.id="mytext";
myoption.name="mytext";
myoption.value ="mytext"; //Probably, the sID stuff
document.getElementById("drop_1").options.add(myoption);
}
& so on within loop.
thanks to all .