JavaScript

Re: Date and time validation are not working. Any ideas?

7-Jul-14 3:02

Since you now have multiple rows, you won't have an element with the ID startHour / startMinutes / etc. - they'll all have a row prefix to ensure that they get a unique ID.

Your current validation method won't actually do any validation. It will display an alert, but then allow the post to continue anyway.

Also, you probably don't want an alert for every row with an error. It would be better to keep the UI consistent by using a proper validator control. In this case, the CustomValidator control[^] is probably the best choice.

ASP.NET

<asp:TemplateField HeaderText="End Time">
    <ItemTemplate>
        <asp:DropDownList id="endHour" runat="server">
            ...
        </asp:DropDownList>
        <asp:RequiredFieldValidator ID="RequiredFieldValidator5" runat="server"
            ControlToValidate="endHour"
            ErrorMessage="*"
            SetFocusOnError="True"
        />
        <asp:CustomValidator ID="CustomValidator1" runat="server"
            ControlToValidate="endHour"
            ErrorMessage="A minimum of four hours is required."
            Text="*"
            SetFocusOnError="True"
            OnServerValidate="ValidateDuration"
            ClientValidationFunction="validateDuration"
        />
    </ItemTemplate>
</asp:TemplateField>

protected void ValidateDuration(object sender, ServerValidateEventArgs args)
{
    Control validator = (Control)sender;
    Control row = validator.NamingContainer;
    
    int startHour = int.Parse(((DropDownList)row.FindControl("startHour")).SelectedValue);
    int startMinutes = int.Parse(((DropDownList)row.FindControl("startMinutes")).SelectedValue);
    string startAmPm = ((DropDownList)row.FindControl("startAmPm")).SelectedValue;
    
    switch (startAmPm)
    {
        case "AM":
        {
            if (startHour == 12)
            {
                startHour = 0;
            }
            break;
        }
        case "PM":
        {
            if (startHour != 12)
            {
                startHour += 12;
            }
            break;
        }
        default:
        {
            args.IsValid = true;
            return;
        }
    }
    
    int endHour = int.Parse(((DropDownList)row.FindControl("endHour")).SelectedValue);
    int endMinutes = int.Parse(((DropDownList)row.FindControl("endMinutes")).SelectedValue);
    string endAmPm = ((DropDownList)row.FindControl("endAmPm")).SelectedValue;
    
    switch (endAmPm)
    {
        case "AM":
        {
            if (endHour == 12)
            {
                endHour = 0;
            }
            break;
        }
        case "PM":
        {
            if (endHour != 12)
            {
                endHour += 12;
            }
            break;
        }
        default:
        {
            args.IsValid = true;
            return;
        }
    }
    
    int hourDiff = endHour - startHour;
    if (endMinutes < startMinutes)
    {
        hourDiff--;
    }
    
    args.IsValid = hourDiff >= 4;
}

JavaScript

function validateDuration(sender, args){

    var row = $(sender).closest("tr");
    
    var startHour = parseInt(row.find("select[name$=startHour]").val(), 10);
    var startMinutes = parseInt(row.find("select[name$=startMinutes]").val(), 10);
    var startAmPm = row.find("select[name$=startAmPm]").val();
    
    switch (startAmPm) {
        case "AM": {
            if (startHour === 12) {
                startHour = 0;
            }
            break;
        }
        case "PM": {
            if (startHour !== 12) {
                startHour += 12;
            }
            break;
        }
        default: {
            args.IsValid = true;
            return;
        }
    }
    
    var endHour = parseInt(row.find("select[name$=endHour]").val(), 10);
    var endMinutes = parseInt(row.find("select[name$=endMinutes]").val(), 10);
    var endAmPm = row.find("select[name$=endAmPm]").val();
    
    switch (endAmPm) {
        case "AM": {
            if (endHour === 12) {
                endHour = 0;
            }
            break;
        }
        case "PM": {
            if (endHour !== 12) {
                endHour += 12;
            }
            break;
        }
        default: {
            args.IsValid = true;
            return;
        }
    }
    
    int hourDiff = endHour - startHour;
    if (endMinutes < startMinutes) { 
        hourDiff--; 
    }
    
    args.IsValid = hourDiff >= 4;
}

NB: Your original validation function would consider 1:45 PM to 2:00 PM as one hour. This version will take the minutes into account as well. If that's not what you want, then you can remove the entire if (endMinutes < startMinutes) { ... } block, and the code which retrieves the startMinutes and endMinutes values.

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

samflex7-Jul-14 4:21

Re: Date and time validation are not working. Any ideas?

7-Jul-14 4:21

WOW, Thank you so much Richard!

You gave me so much and I am truly grateful for your generosity.

I have a couple of questions I am afraid to ask but have no choice anyway.

The js that checks for minimum hours needed is giving me the following error:

Error: Object doesn't support property or method 'parseInt'

I believe that is a Javascript.

Thank you, thank again.

Richard Deeming7-Jul-14 4:27

Re: Date and time validation are not working. Any ideas?

7-Jul-14 4:27

Whoops! Looks like Number.parseInt[^] only works in Firefox. Try using just parseInt[^] instead, without the Number. prefix.

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

samflex7-Jul-14 4:36

Re: Date and time validation are not working. Any ideas?

7-Jul-14 4:36

The error is gone but the validation is not working. I tried both IE and FF.

When I say not working, it just doesn't do anything.

Rather, bypasses the validation and submits to the db anyway.

Richard Deeming7-Jul-14 4:45

Re: Date and time validation are not working. Any ideas?

7-Jul-14 4:45

Do you have both the server and client-side validation in place?

Are you getting any script errors from the client-side validation?

And how are you posting to the database?

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

samflex7-Jul-14 4:51

Re: Date and time validation are not working. Any ideas?

7-Jul-14 4:51

Yes, I have both server and client scripts in place.

I had to convert the server code to vb.net since that's what the rest of code is written in.

No errors from the Javascript.

I have a btnSave_Click sub. My thinking ( and I could be wrong) is that when user clicks the btnSave_Click to submit to the database but if minimum hour is not up to 4 hours, then the error is raised from your code.

Hope that's the way it should be done.

Thanks sir for your continued assistance and patience.

UPDATE: Now that I think about it, I *THINK* I know what the problem is.

Before your code, the validation included date:

PHP

  var theDate =  $("table[id*=Gridview1] input[id*=txtdate]").val();
  var timeStart = new Date(theDate + ' ' + sHour + ':' + sMinutes + ' ' + sAmPm).getHours();
var timeEnd = new Date(theDate + ' ' + eHour + ':' + eMinutes + ' ' + eAmPm).getHours();

And also based on button click:

$('#btnSave').on('click', function () {

I am not sure how to reconcile these with your nice code Richard.

modified 7-Jul-14 11:12am.

Richard Deeming7-Jul-14 5:17

Re: Date and time validation are not working. Any ideas?

7-Jul-14 5:17

OK, there were a few typos in my post, which should now be corrected:

Missing "f" from hourDiff within the if (endMinutes < startMinutes) block;
Missing break statements from the switch clauses;
jQuery selectors should be select[name$=...] instead of select[id$=...] due to changes in ASP.NET 4.0 ID generation;

I've updated my post with the Javascript code which should now work. The VB.NET code should look something like this:

VB.NET

Protected Sub ValidateDuration(ByVal sender As Object, ByVal args As ServerValidateEventArgs)
    Dim validator As Control = DirectCast(sender, Control)
    Dim row As Control = validator.NamingContainer

    Dim startHour As Integer = Integer.Parse(DirectCast(row.FindControl("startHour"), DropDownList).SelectedValue)
    Dim startMinutes As Integer = Integer.Parse(DirectCast(row.FindControl("startMinutes"), DropDownList).SelectedValue)
    Dim startAmPm As String = DirectCast(row.FindControl("startAmPm"), DropDownList).SelectedValue

    Select Case startAmPm
        Case "AM"
            If startHour = 12 Then
                startHour = 0
            End If
            
        Case "PM"
            If startHour <> 12 Then
                startHour += 12
            End If
            
        Case Else
            args.IsValid = True
            Return
    End Select

    Dim endHour As Integer = Integer.Parse(DirectCast(row.FindControl("endHour"), DropDownList).SelectedValue)
    Dim endMinutes As Integer = Integer.Parse(DirectCast(row.FindControl("endMinutes"), DropDownList).SelectedValue)
    Dim endAmPm As String = DirectCast(row.FindControl("endAmPm"), DropDownList).SelectedValue

    Select Case endAmPm
        Case "AM"
            If endHour = 12 Then
                endHour = 0
            End If
            
        Case "PM"
            If endHour <> 12 Then
                endHour += 12
            End If
            
        Case Else
            args.IsValid = True
            Return
    End Select

    Dim hourDiff As Integer = endHour - startHour
    If endMinutes < startMinutes Then
        hourDiff -= 1
    End If

    args.IsValid = hourDiff >= 4
End Sub

The validator won't raise an error. Instead, as with any other validator control, the Page.IsValid property will return False. So your update method should look something like:

VB.NET

Protected Sub btnSave_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnSave.Click
    If Page.IsValid Then
        ' Update the database...
    End If
End Sub

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

samflex7-Jul-14 5:31

Re: Date and time validation are not working. Any ideas?

7-Jul-14 5:31

Simply elegant Richard!

I now completely understand exactly what you did.

If minimum hour is less than 4, then the red asterick (*) is displayed.

It is working beautiful!

You have bailed me out again. Thank you soooo much, Richard.

I have got to figure out again, once more how to give you credit for the great work and then treat this thread as solved.

Kornfeld Eliyahu Peter7-Jul-14 3:31

how to check if user is fan of a facebook page using javascript?

7-Jul-14 3:31

Read here to understand how element id created inside an ASP.NET template...
Understanding ASP.NET Templates[^]

I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is. (V)

Meax3-Jul-14 6:50

Meax

3-Jul-14 6:50

does anyone know how to check whether someone is a fan of a facebook page.

Re: how to check if user is fan of a facebook page using javascript?

zeGeek9-Jul-14 14:28

zeGeek

9-Jul-14 14:28

This link will help you : https://developers.facebook.com/docs/graph-api[^]

Re: how to check if user is fan of a facebook page using javascript?

Vfleitao14-Jul-14 22:27

Vfleitao

14-Jul-14 22:27

you can do like this after having the user permission
var user_id = 'USERID'
var page_id = 'YOUR PAGE ID';
var fql_query = 'SELECT uid FROM page_fan WHERE page_id = ' + page_id + ' and uid='+ user_id;
var query = FB.Data.query(fql_query);
query.wait(function (rows) {
if (rows.length == 1 && rows[0].uid == user_id) {
//IS A FAN OF THE PAGE
} else {
//NOT A FAN OF THE PAGE
}
});

auto refresh marker on google map with directions

popsompong1-Jul-14 0:10

popsompong

1-Jul-14 0:10

XML

<?php require_once('Connect/Connect.php'); ?>
<!DOCTYPE html>
<html>
    <head>
    <script src="//maps.googleapis.com/maps/api/js?sensor=false"type="text/javascript"></script>
    <script type="text/javascript" src="jquery-1.9.1.min.js"></script>
    <script src="http://code.jquery.com/mobile/1.2.0/jquery.mobile-1.2.0.min.js"></script>
    <style type="text/css">
html, body, #map-canvas {
    height: 100%;
    margin: 0;
}
</style>
    <script type="text/javascript">


        <?php

        $sqlgps = "select * from gps ORDER BY id DESC LIMIT 1";
        $result = mysql_query($sqlgps) or exit($sqlgps);
        $row = mysql_fetch_array($result);
?>

        var map; // add map make

      function initialize() {
        var mapOptions = {
         center: new google.maps.LatLng(<?php  echo($row[latitude]) ?>, <?php  echo($row[longitude]) ?>),
          zoom: 17,
         mapTypeId: google.maps.MapTypeId.ROADMAP
        };
        map = new google.maps.Map(document.getElementById("map-canvas"),
            mapOptions);
        //load();

        }

            function make(){
            var marker = new google.maps.Marker({
            position: new google.maps.LatLng(<?php  echo($row[latitude]) ?>, <?php  echo($row[longitude]) ?>), // auto refresh marker fram database mysql
            //position: map.getCenter(), 
            draggable:true, // make move click
            animation:google.maps.Animation.DROP,
            map: map,
            title: "Welcome to Thailand",

            //icon: "http://maps.google.com/mapfiles/ms/micons/blue.png"
            });
            //
            }


   google.maps.event.addDomListener(window, 'load', initialize);
        window.onload = make;
  


    </script>
    </head>
    <body ">
    <div id="map-canvas"></div>

</body>
</html>

Angular JS

chauhanvatsal30-Jun-14 20:40

chauhanvatsal

30-Jun-14 20:40

I want to know what is the main purpose of the angular js can u axplain with any live example in asp.net

thanx

Re: Angular JS

Kornfeld Eliyahu Peter30-Jun-14 21:41

how to get data from json url ?

30-Jun-14 21:41

Ever considered to visit here: https://angularjs.org/[^]?

I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is. (V)

Re: Angular JS

gaupoit3-Jul-14 5:27

gaupoit

3-Jul-14 5:27

AngularJS is a MVC framework for client-side. You can use it for building an Single Page Application easily.

Tamil Purushothaman29-Jun-14 20:43

Tamil Purushothaman

29-Jun-14 20:43

I have the below code, I want to display Temprature -> Metric value ?

[
{
LocalObservationDateTime: "2014-06-30T11:40:00+05:30",
EpochTime: 1404108600,
WeatherText: "Mostly cloudy",
WeatherIcon: 6,
IsDayTime: true,
Temperature: {
Metric: {
Value: 18.6,
Unit: "C",
UnitType: 17
},
Imperial: {
Value: 66,
Unit: "F",
UnitType: 18
}
},
MobileLink: "http://m.accuweather.com/en/in/kodaikanal/195980/current-weather/195980",
Link: "http://www.accuweather.com/en/in/kodaikanal/195980/current-weather/195980"
}
]

Re: how to get data from json url ?

Graham Breach29-Jun-14 22:18

Graham Breach

29-Jun-14 22:18

If you have that in a variable called "data", then this is how you could access it:

JavaScript

var value = data[0]['Temperature']['Metric']['Value'];

Or this way:

JavaScript

var value = data[0].Temperature.Metric.Value;

If you're not certain that these elements exist you should check before trying to access them, otherwise you will get a type error: Cannot read property '...' of undefined.

mouseout isn't firing

ThetaClear29-Jun-14 1:34

29-Jun-14 1:34

Hi,

I have a strange behavior:
I have a collection of shapes that each one of them has a mouseover and mouseout event handlers.
When the user moves across a shape, its color changes and then when he moves out of it, its color returns to the original color.

The thing that I don't understand is sometimes, the mouseout event isn't trigering at all and the color of the shape remains with the hovered state.

Here's a fiddle I created just to demonstrate the problem. The mouseout sometimes doesn't run and so the color doesn't return to its normal red.
jsfiddle.net/aK5Cz

I even tried adding a global variable as the last element hovered and checking it but no luck...
Any ideas?

modified 29-Jun-14 7:44am.

ThetaClear29-Jun-14 23:21

29-Jun-14 23:21

I think the problem that I can see is that even though addEventListener is called and executed, the handler doesn't execute.
You can see from the console log that it reaches the end of the mouseOver function but never the less the handler doesn't execute.

Kornfeld Eliyahu Peter30-Jun-14 1:16

30-Jun-14 1:16

You code looks extremely complicated for a simple mouseOver test... I can't see what the logic behind detach/attach the event handler every time. It also possible that because of the complexity of your code it takes too much time to handle one event so the second is wasted (JavaScript is single threaded!!!)...
First check your 'frame' code without complication, than add functionality bit-by-bit to check when problems start to show...

I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is. (V)

ThetaClear30-Jun-14 1:26

30-Jun-14 1:26

Thanks for your response Peter.
The code that you see is what needs to be there in order for the code to run.
I removed some of the stuff and changed some things but it doesn't matter.
I know that JS is single threaded. Maybe that could be the reason.
I will check it.

ThetaClear30-Jun-14 3:38

30-Jun-14 3:38

I checked the code - it's the bare minimum I need for the mouse over\out so I don't have a lot to remove - although I removed parts.

http://jsfiddle.net/aK5Cz/3/[^]

What do you mean "I can't see what the logic behind detach/attach the event handler every time". There's no logic behind it - I just remove it. It's a built-in function.

The code sometimes reaches the end of mouseover and doesn't execute the mouseout when the cursor is out.
In case you are right about the thread issue: what are my alternatives?

Kornfeld Eliyahu Peter30-Jun-14 3:43