Dynamically Change A Value On A Asp.net Page Without Actually Refreshing It?
Apr 1, 2011
I have a label, let's call it LblA. I have a SqlDataSource, let's call it sds. Now, I have selected out and managed to get specific values using the select function. I want to set LblA's text to the value selected out of sds. I need this to occur every 5 (or as many as I specify really) seconds. I orignally used a timer object, however, for any of you who have used the timer object before, it likes to refresh the page, this makes it very hard to navigate off of the page; not only that, it's sloppy. Does anybody know a way to easilly update LblA's text from sds without refreshing the actual page.
I've read around and came to the conclusion that I need to use ajax, err... jQuery. However, I really don't know anything about the two except that they are both Javascript libraries? I need a simple way, you might even have to explain it to me like I'm an idiot.
In webbrowser, I am visiting a website that lists 10 items per page, I select "20 items per page". The webpage dynamically updates to display a list of 20 items.However when I view the webpage code it still shows 10 items. If I refresh the webbrowser, the code will show 20 items.
How would I go about running a query in asp and storing it in an array. Then with the array go through each record without having to refresh the page every time.
For example Sub loaddata() Dim conn As New IfxConnection(connectionstring) Dim results() As String Dim i As Integer = 0 conn.ConnectionString = connectionstring [Code] .....
The results are stored in results(i). Say I have a button that says next and everytime I want it to go to the next item in the results array. I don't want the page to refresh. How do I do that?
I need to poll the server for updated contents. So I added a META REFRESH tag to the page. But it seems that META REFRESH has memory leak issues and it crashes IE.What is the best way to poll data from server continuously? My app is quite old (partly ASP and partly asp.net). I can't invest on technologies like HTTP Push...
I have aspx gridview with checkbox on evryrow, what is required is whenever we check any of the rows, a query should be launched to change the specific agent -each row consist of agentID, Pass, Status- to Paid Status. using javascriptWhat I need to know is how to loop to get the Checked row and get the ID of the row checked so that I can get THe ID of the Agent in thos row so that I can update its status.using javascriptI found something similar on stackflow:t GridView selected row DataKey in JavascriptBut it is not my case, what is needed is at the check of a checkbox a javascript function should launch through which I could update the selected row in grid view after having the index of this row and this all to avoid refreshing the page.
1. Is there any way to disable refreshing in such a way that the button can still be used for stuff like flash on the page still? All my methods have blocked using the button in the flash which is loaded on the page....
2. Is there any way to get the new scrollbars of IE10 or metro style scrollbar or what not into the webbrowser like the desktop version of IE10 does in Windows 8 Consumer Preview?
3. Is there any way to allow the close window called from javascript to be detected & actually close the window in my program?
4. Is there any way to make it so when new window is called it will open a new window with my application in a new instance? stopping me now is it seems to want to open in the same window if I use the event NewWindow to cancel the event from happening but it gets script errors....is there any way to retrieve the link to what it needs to open so I can handle this properly? Or at least tell it what else to use? besides the default browser....I want it to open inside my own program & not IE.
i am new to this. i have 4 pages. login.aspx, account.aspx, settings.aspx and fliers.aspx. its all programmed in vb.net with sql server backend.on my firstr page, login.aspx i have this code in the .vb page -
Dim SQL As String = "SELECT * FROM table1 WHERE email='" + Me.txtUserName.Text + "' AND password='" + Me.txtPassword.Text + "' " ExecuteNonQuery(SQL)
1) I created and attached a database to my VB application.
2) I edited the Dataset within the Designer to add a new Insert query to one table. Everything worked great.
3) Externally I modified the structure of the database, changing one field from date to string. Went back to the application and everything was fine. It seemed to update and be aware of the change.
4) Again externally I added a new field to the table. I went back to VB and adjusted the query to include the new variable.
5) Now, VB keeps telling me the first variable I changed is a Date variable and not a string, and I can't seem to convince it otherwise.
My changes should have been refreshed and changed automatically by VB. I did a lot of similar changes and additions earlier, and they all worked. Is there any way of forcing a refresh, or rebuilding the definitions. I did try to go into the designer.vb file and manually change the "date" to "string" in the references to my field (I adjusted all the fields so they matched other string variables).
I don't want to have to rebuild the whole application from the ground up again. (this is the third time something like this has happened to me).
I can usually find the answers to most of my questions via the Google Gods, but not this time.I have a form that has a TabPageControl and on that page a collection of labels and text boxes via a usercontrol.
On the form I have a button that allows the user to create a new tabpage, when the code adds a new page, it automatically adds the UserControl collection. I can't get my head around how to access the objects on the newly created tabpage.
What I need to be able todo is take the index of the tabpage that has focus and translate that against the UerContol name, but I havn't a clue how to do it!
How do I set the scrollbars in an ASP.net page dynamically? When a user comes to certain pages on my site I would like the page to be scrolled down about halfway. Is there a way to do this without using Javascript?
I am currently using nested masterpages in my latest asp.net 4.0 project and i want to change the look and feel dynamically, so the homepage may just be 1 column wide, about us page may be 2 columns etc. I am dynamically loading the masterpage dependant on the record selected in the DB (1column.master, 2column.master) on the pre_init event of a static page (Load.aspx) which work succesfully however i need to be able to dynamically add controls to the page in order to get the desired layout. Is this possible, is there a better way of achieveing this?
I'm creating a program that ought to automatically populate a form on a web site with information, and then submit that form. I've done this kind of thing a lot before, but this time I'm running into an interesting problem -- the "input type=file" element.
With the "input type=file" element, a filename box is automatically created along with a Browse button. Clicking the filename box opens the file browser -- you can't type in the filename box manually.
For my program, however, I want to manually set the value of this filename box. Usually, I would just get the element from the page, then call: element.SetAttribute("value",myNewValue). However, with the "input type=file" element, that hasn't worked, presumably because the user cannot normally manually edit the value of the box (though I could be wrong about that being why).[code]...
I've asked this elsewhere once, and one reply was about how I shouldn't be attempting to write a server that will accomplish this anyway -- so let me make sure it's perfectly clear, I'm just writing a client program that ought to mimic what I would be doing anyway. Its purpose is that there's a particular site that I submit things to whose interface only supports one submission at a time, and I have several hundred things I need to submit.
Access objects on a dynamically created UserControl an a dynamically created tab page. I can usually find the answers to most of my questions via the Google Gods, but not this time. I hope the collective that is StackOverFlow can help! I have a form that has a TabPageControl and on that page a collection of labels and text boxes via a usercontrol.
On the form I have a button that allows the user to create a new tabpage, when the code adds a new page, it automatically adds the UserControl collection, all good so far. I can't get my head around how to access the objects on the newly created tabpage. What I need to be able todo is take the index of the tabpage that has focus and translate that against the UerContol name, but I havn't a clue how to do it! [Code]
Admin users can add HTML content to a website via a CMS textbox control.
When this content is displayed to a website visitor, I'd like to identify the presence of a HTML table (added by a Admin user using the CMS) and display an option for visitors to export that table.
I can handle the exporting, but identifying the HTML tables has me stumped.
I have 50 checkboxes that I need to write onto an aspx page. Each checkbox comes with 3 textboxes.[code]...
Now this shall go for all 50 states, depending on which states the person wishes to donate. In each state's row shall be a checkbox. So initially the page shall have value 0.00 in donation and new donation checkboxes, but all 50 states shall be visible. When the person puts a value of donation in certain state, that state shall get "checked" value and the donation, after submitting. On reloading, the value shall be populated automatically and checkbox checked automatically.
I'm coding an ASP.NET page, with VB code behind. When the user clicks a button on the page, I send them an email with information and instructions. Rather than sending a plain text email, I send a nice, pretty, HTML-formatted one. Right now, I'm doing this in a way that I KNOW will be difficult to maintain. That is, I'm straight up writing out all of the html. [code]...
I'm calling a webservice that is returning an unknown quantity of images in the form of an a collection of byte arrays. (I can't change this) I need to display each image on a single aspx webpage. I'm currently using the Microsoft.Web.GeneratedImage control; [URL] to display the images.
I'm currently attempting to use a .NET WebBrowser to display help information (stored locally in html files) for an application I'm writing, however I'm experiencing two problems, both related to hyperlinks.
Firstly, I have a search function which returns the correct URL in the format file:\C:... I can copy and paste it into a browser, and it will navigate there. Yet clicking on the link within the control itself does nothing at all.
Secondly, the HTML files all contain relative paths to other HTML files. These of course do not work as I just end up with file:\C:help.html which gives me a 'webpage is unavailable.' But I can't think of a way to get it to work without parsing the HTML file and concatenating the path to the directory on to the front of the link.
Just to clarify, in the first problem I am dynamically building a search result page as the user types. The HTML contains several results similar to this (yes, it's unfinished, I'm just showing you the link part): [code] Now, when I click on that link in the control nothing happens, it doesn't give me a 'webpage is unavailable' or take me to the actual page. Saving the HTML, however, and opening it with Chrome, IE and Firefox works fine.In the second problem, I have a different help file for different sections, each containing relative links to several others. VB picks these up as direct paths, and attempts to go there from root, i.e file:\C:file.html. The only solution I can think of is to parse the file and use WebBrowser.Navigate(Path.Combine(pathToDirectory, nameOfHelpFile.html), which seems a lot more inefficient than it should be.
I am working on a site where the meta tags are set in a Masterpage in a section using runat="server". I can update the title, description, keywords, etc... through properties in the Masterpage code-behind, but how would I add or edit non-basic ones such as
I have tried the following, but it always returns 0 for the count.
Dim header As Web.UI.HtmlControls.HtmlHead header = TryCast(Me.Master.FindControl("headerIdName"), Web.UI.HtmlControls.HtmlHead) Dim count As Integer = header.Controls.Count
I have close to 10,000 serverside pages, all of thse use the same stylesheet. I have created a new serverside page which is like a dynamic menu system to help find specific pages from the existing 10,000 pages quickly and easily.
The problem is, that if the serverside pages are accessed the old way using the old menu system, they should retain their old stylesheet. however, if they are accessed via the new menu system, they should use a new refreshed stylesheet.
I'm trying to find a way to change the name of a text box if the name of the text box is first declared as such:[code]I tried the statement: Name = "SBox" & My. Settings. Row Countx but maybe this is wrong.To be very brief I'm trying to resolve this to under the following scenario:
1. Add a new text box to a tab page when user selects "add" button.
2. Each text box must be assigned a unique name
3. Data entered in each text box will be then be saved in my.settings (i.e., for each text box, there will be a corresponding variable/name to hold its text value)
I have one web service reference in my project but it has two url one is live and second one is test,how to switch between these url dynamically in vb.net[code]...
I am using vb.net and SQL server 2005 I have a project with database classes which are generated from database objects. That is I add a dataset to the project and drag and drop a database object onto it. The problem with this is that I have to give a connectionstring which is stored in the code. This is ok while developing the application. But runtime I want to use another connectionstring, both for security reasons and because each user of the application will correspond to a database user (SQL) and shall have a corresponding connectionstring. Is there an easy way to do this without having to restore to plain all datasets and do everything myself?
Suppose I have a class that represents a product to be priced using one of a number of different pricing strategies. This pricing occurs hundreds of times per second, so to eliminate repetitive if/else statements I am instead using a delegate to launch the appropriate strategy, like so:
Private Delegate Sub PricingModel(ByVal params As PricingParameters) Private myPricingModel As PricingModel Private myPricingParameters As PricingParameters[code].....
But this doesn't look right to me (though it seems to work). Is there an accepted/better way of doing this? Or is this the standard way? Or is this just simply a doomed approach from the start?
