Javascript - Creating A Web Server Control To Mimic Jquery Autocomplete API?
May 2, 2012
I am attempting to create a ASP .Net (VB.Net) custom control for an auto-complete drop down that uses jQuery auto-complete.The basic flow is the consumer of the control will set some properties (such as the data source) which will then be injected as javascript to initialize the autocomplete.There are a lot of pieces involved so i may have missed posting some of the code, please comment if you think something is missing and i will add it.the consumer's code behind (PreInit event):
myDropDown.DataCallback = "testFunc";
the DataCallback property in the control:
Public Property DataCallback As String
the options object creation and javascript injection in the control code behind (PreRender event):
Dim _serializer As New JavaScriptSerializer()
Dim optionsObject As New Dictionary(Of String, Object)
optionsObject.Add("source", DataCallback)
[code]....
when i debug into the initialize function, i see options has one property, source, with the string "testFunc" as it's value. what i need is for source's value to be testFunc (not as a string) so it can be executed as a callback in autocomplete instead of autocomplete thinking it is a URL.
Access <asp:table> table rows added by javascript in asp.net webform . Apologies for the duplicate question but I'd really like an explanation why this is the case. It is probably due to my lack of understanding on how browsers process HTML tables on submission to the server.If I have a <HTML> table or an <asp:table> control on an aspx page and I add rows to it client-side using JQuery / Javascript, why can I not include these added rows in a post-back to the server?
I've been trying to get this to work and it looks like I can't do it based on the answer to the previous question. But can someone explain why this is the case? The table itself can be returned in the post-back but the only rows present are the rows that were part of the table when it was sent to the browser originally - it does not include the rows added by the browser.there was a way to include these new rows in the post-back, the same as any client-side user input?
I will be storing an array in session that will contain data entered by the user (id numbers used to search in several different areas of the application) I then want to return the values in this array that is residing in session as auto complete selections.
Getting the array into session and updating it is the easy part, getting it from session into the autocomplete isn't as much so. I'd rather use the array to do the auto complete instead of converting to json.
I've tried using '<%= SESSION("MEMBER_SEARCH_ARRAY") %>' as the source for the autocomplete but no dice.
i have an input using the jquery autocomplete plugin. with this i want to return 5 results. I was making this happen by just entering 5 return results in the stored procedure that im using, but i want to remove duplicates, while still showing 5 results. im not sure the best way to go about doing this here is my code behind for the callback page
Here I have another control delete button, in delete button I will get a id to delete, here I want to pass that id as a parameter to script function , and I want to search hidden field contains those value and delete that row.
Private Sub btnDelete_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles btnDelete.Click 'some operations ScriptManager.RegisterStartupScript(Me, GetType(String), "Deletearow", "DeleteGrid_Row(" & Me.hfSelected_GvResultsRowTocID.Value & ");", True) End Sub
So here is the situation. I am originally a PHP developer, here are my steps to render data:
PHP gather data from DataBase PHP write data to JavaScript JavaScript render using JQuery to HTML HTML display to user User Postback to PHP PHP write back to Database with new data
Now I am using VB.NET and I need to use their paradigm with controls and what not. However I would like to render using JQuery and JavaScript. How do I get data into JavaScript when loaded in VB and get it back once user post?
I'm working on a web page that takes multiple PNG images and merges them into one image so the user can download the flat image. I would like to add a hue or color adjustment (like color balance in photoshop) so I can adjust the different PNG image layers without having to create a separate image for each hue. Right now I'm using ASP.net/VB.net and some jQuery and the System.Drawing.Image method to merge the images. I can't seem to find any information on doing this for the web without using silverlight or flash and I do not want to use either.
I need to find a way to call a vb.net function in my aspx page from javascript. I have a Jquery function that makes the .drop class .droppable, and whenever I drop a .draggable onto a drop target, my Jquery code successfully fires a java alert statement. All in pure javascript. What I need to do is some heavy math!
I need to validate different date's with some javascript(jquery).I have a textbox with, the inputmask from jquery The mask that i use is "d/m/y".Now i have set up a CustomValidator function to validate the date.I need 2 functions. One to check if the given date is greater then 18 years ago. You must be older then 18 year.ne function to check if the date is not in the future. It can only in the past.
The function are like function OlderThen18(source, args) { }
This might be a stupid question but is it possible to use javascript/jQuery in windows applications? Im making this application in vb.net, just for personal use and im just making it to practice and to learn more about vb.net programming. I know javascript is ment for web applications but maybe there are ways to use them in windows applications aswell.
I have written a web usercontrol (ascx). Inside, there is a Panel that I want to show/hide on click of a hyperlink inside the usercontrol. Normally, this is easy just by doing something like this (the onclick attribute is added to the hyperlink on prerender):
I have a text box and a list box, my ultimate aim is to use the text box to filter the list box. The below code works however the text box is case sensitive and I need the user to be able to input any case and it filters the list box accordingly, at moment.Example
"MY SITE" = Works "my site" = Works "My Site" = Does not work[code]........
I want a web page that pops up a JavaScript alert when a bar code scan is done. I don't want to tie the event to any visible control such as a textbox so thus, I won't have focus on any control to capture the scan input. Can this be done with JQuery?
my problem is that my company does not want to serve up the .json MIME type, so I have to use ASP.NET to fetch the JSON file from the file server. Currently I have jQuery that does a getJSON and traverses the JSON object to build certain elements of the page. Is there a way I can use ASP.NET (VB) to give the object to my jQuery script after I fetch it?
[URL] Response when viewing URL: {"Status":"OK","Message":"0","Info":"(none)"} Using JQuery how do I pull from that? I get how you do POST and sending but little lost has to how to pull from that. Do I use GET? Am I doing something like $.get("URL HERE"...?
I've got an odd situation with a text box and an autocomplete setup on my page. I'm using a JQuery based autocomplete on a text box that has AutoPostBack="True". This works perfect if I use the keyboard to select an autocomplete item, which then fires Jquery to fill in the text box, and then when I tab out of the box the AutoPostBack fires. If, however, I click on an autocomplete item, my text box loses focus first and the AutoPostBack fires before the Jquery has a chance to change the text in my text box. Is there a way to delay either the PostBack or the Jquery so that they don't fight each other? I'm thinking it may have to be the PostBack that gets changed, since the JQuery would lose it's state on the PostBack.
I have uploaded some images using uploadify and saving the original file in "uploads" folder and thumbnails in "uploads humbs" folder now what I need is I have a div element on the main.aspx page where I need to show thumbnail image.After clicking the thumbnail I need to give a lightbox effect to it.
1.I have done this way but this is showing me the original image instead of thumbnail.So how do I point to my thumbnail.
2.When Using Lightbox effect how do I manage my two Imagess with the below code.
This is my Handler code:
Public Class UploadVB : Implements IHttpHandler Public Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequest
I have a jQuery 'toggle' function on a table that I am using in conjunction with an asp.net gridview. I have pagination on my gridview and when I click on the next page, it posts back and therefore closes the Toggle/Table - I need a way of keeping it open. I have had a similar issue in the past with the Accordion function but resolved it via this method
I need to open a page as a Modal Dialog using Jquery .For Example: I have 2 pages say, Parent.aspx & Child.aspx, I need to open child.aspx in a modal dialog using JQuery when i click on a button/link in the parent.aspx. Also Postback can happen in the parent and child pages.
On the page being called, I'm using the following vb.net code to retrieve the querystring variables and write them to a database:Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
[Code]...
Each of the javascript blocks above worked locally as intended but failed in the same manner with multiple DB writes and Firebug "Aborted" status.If I call the url+querystring directly via the browser, everything works as expected. (Edit) Also tried using the full path url in the code above - no improvement.
I am recieving the following error when trying to execte the java script listed below in the page load event of an aspx web page.
Microsoft JScript runtime error: Unable to get value of the property 'document': object is null or undefined
Dim scriptString As String = ("<script>javascript: window.opener.document.forms(0).submit(); </script>") If Not Page.ClientScript.IsClientScriptBlockRegistered(scriptString) Then Page.ClientScript.RegisterClientScriptBlock(Me.[GetType](), "script", scriptString) End If I am trying to produce a postback.
vb.net MasterPages Usercontrol with defined events
This is what my usercontrol looks like:When the user clicks the 'Approve' button, an event is fired in the usercontrol that is then intercepted in the main page to do custom code (database update, mails etc...)
I have an ASP.NET MVC controller action with the following VB.NET signature:
[Code]...
If I'm trying to send an Ajax POST in jQuery to the ClosestCities action, what should my request look like? When I use the following code to POST to this action, in the debugger window of VS, position.longitiude and position.latitude are equal to 0.0 (0D):
Is there a way to trigger a GridView rebind from an html markup page using jQuery or jscript?
I have an ActiveX download control which passes all events via jscript.
So, a have a download complete event on the markup page but not the code behind.
Here is the main aspx page:<asp:Content ID="Content1" ContentPlaceHolderID="Head" Runat="Server">
<script type="text/javascript" src="aurigmaiuembed.js"></script> <script type="text/javascript"> function FileDownloader_DownloadStep(Step){ //The file list is going to be downloaded - "2 = About to Start" if (Step == 2){
i have the following function in default.aspx i have webusercontrol which have 10 checkboxes and 1 button i want when i click on button1 of user control then it can access the function of default.aspx page ...if i dragged the usercontrol to default.aspx
Wish you all are doing fine at the start of a new year
I am a beginner developer. I am developing a website. I have few divs which made up dragable boxes enhanced by jquery portlets. see the codes below.(html).
<div class="portlet"> <div class="portlet-header"> Category A </div> <div class="portlet-content">
[Code]....
I also have a stored procedure from the database developer that return the list of categories. Depending on the user selection, the list of categories can vary. So i have to dynamically create those Boxes. Each categories returned by the SP should replace Category A, Category B, and so on. As i can't know the number of categories returned by the SP i just hard coded those divs. My question is simply how ? How can i achieve this?
I have to be using VB.net in VS 2010. The database is in SQL server 2008.
We're working on a big ASP.NETVB.NET website project. I need to populate three dropdownlists. To last two are independent of the previous ones. The population data comes from an SQL Server. I'd have no problem doing this with code-behind with post back but we don't want any PostBacks so I started to develop this in AjaxjQuery.
i have a textbox1 in my asp.net webform which shows the server side date i want the user would not select date using jquery datepicker earlier than the date in the textbox1 i m using the following code to show jquery calendar in other textbox2 :
I am new to Jquery and trying to start learning the new tool. What I want to do is call a JQuery message box from my gridViews Row Command function after the processing is done so I can notify the user the process has been complete. I was trying to use this website as a referanceBut not sure how to call the function from the serverside. I have triedPlace this inside your script tags...
$(document).ready(function () { //Determining if there is a message to be shown if the message is not equal to empty string then the messagebox should appear.
What I want to do is retrieve all emails from MS SQL Customer table Email column and populate them in using JQuery autocomplete feature. The current system is using VB.NET 2.0. What I have done is get all emails and put them in DataTable and loop through and put them in the string delimited by ",". Put that string into hidden box. JQuery retrieve value from that hidden box and build an array using "array = emails.split(",");". Here is the code. It works pretty good on development server since we have only 2,000+ records but it is loading forever when I put that on the live server where there are 80,000+ records.
