ASP Put Query Into Array And Go Through It Without Refreshing Page
Jun 13, 2012
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?
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Jun 10, 2009
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...
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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.
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Oct 28, 2011
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.
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Mar 13, 2012
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.
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Jun 14, 2011
I didn't think it fair to post a comment on Fredrik Mörk's answer in this 2 year old post, so I thought I'd just ask it as a new question instead..NB: This is not a critiscm of the answer in any way, I'm simply trying to understand this all before delving into memory management / the marshal class.
In that answer, the function GetByteArray allocates memory to each object within the given array, within a loop.Would the GetByteArray function on the aforementioned post have benefited at all from allocating memory for the total size of the provided array:
Dim arrayBufferPtr = Marshal.AllocHGlobal(Marshal.SizeOf(<arrayElement>) * <array>.Count)
I just wonder if allocating the memory, as shown in the answer, causes any kind of fragmentation? Assuming there may be fragmentation, would there be much of an impact to be concerned with? Would allocating the memory in the way I've shown force you to call IntPtr.ToInt## to obtain pointer offsets from the overall allocation pointer, and therefore force you to check the underlying architecture to ensure the correct method is used*1 or is there a better way? (ToInt32/ToInt64 depending on x86/64?)
*1 I read elsewhere that calling the wrong IntPtr.ToInt## will cause overflow exceptions. What I mean by that statement is would I use:
Dim anOffsetPtr As New IntPtr(arrayBufferPtr.ToInt## + (loopIndex * <arrayElementSize>))
I've read through a few articles on the VB.Net Marshal class and memory allocation; listed below, but if you know fo any other good articles I'm all ears![URL]..
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Aug 4, 2009
I have a Gridview on a page that have: CountryID, value 2 columns.There are another 2 text boxes on the pageI added a hyperlink field to the Gridview and I want onclick it will take me to another page with a Gridview that have datasource to query based on values of these 3 controls:-
(1) CountryID ofthe row user clicked
(2) textbox1
(3) textbox2
[code]......
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Jun 3, 2011
Right now I am using this code on client side.
[Code]...
The values for the hidden fields are already set. I want these value to open a window, in which the fields will be already filled using the values passed by this page. This code is working fine on Internet Explorer, but not on other browsers. Moreover, when I don't pass any value and just open the required window, it works on all browsers.
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Jan 7, 2012
I have a few running totals and a name associated with these totals and was wondering if an array would be quicker to use instead of storing it in a database.Basically what happens is I need to search a name and if it exists I add the necessary amounts to the totals and if it doesn't exists I add a new record.
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Feb 25, 2011
I am having trouble using FOR loop with array in query.What I am trying to do is for all the data pulled out of database I convert it to an array list and then string (this works fine). After that I am trying to make a FOR loop query for each of the data pulled out and this is where i am having trouble.
[Code]...
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May 9, 2012
Is there any way to query an array of mine in VB.net? I just need something temporary in order to query it for a report but I do not want to make an external database just for something that's going to be temp. I just need to be able to say select * from tempTable etc etc.
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Sep 17, 2010
i am new at everything VB.net/ASP.net. I have an ASCX.vb page that lets the user choose someone from a table. Once they do select someone, the page reloads with that persons information into another table below that one where they can submit an order for that person or remove that person. Problem being is that i wanted to store the users ID that are selected but it seems that everytime the page reloads to show an update, it dim's my array again back to default. This is my code once they choose a user:
[Code]...
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Jan 29, 2010
I'm using javascript to send a array to my code behind so it can be saved. And also to redirecting the page to the next dataset.
function ChangeMonth(utcDate){
PageMethods.javaGetArray(colors);
alert("saving...");
window.location = "./transport.aspx?date=" + utcDate;
}
This works perfectly when there's an alert in between, the saving and the redirect. If I delete the alert it just redirects without saving.
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Oct 25, 2010
I am new to LINQ, but have been able to query SQL using LINQ to SQL and then I can data bind the results to a GRID or DROPDOWN LIST with no problem. What I would like to do is load a column into an array. I have seen examples for something like this in C#[code]...
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Dec 14, 2010
I'm using VB.Net and have the following LINQ Query...
Dim ACFTTail5 = (From tailcounts In db.TailCounts _
Where tailcounts.Model = "UH-60A" _
Group tailcounts By _
tailcounts.Tail, tailcounts.Model _
[Code].....
But get the following error...
"Unable to cast object of type 'System.Data.Linq.DataQuery1[VB$AnonymousType_42[System.String,System.String]]' to type 'System.String[,]'."
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Nov 23, 2010
Dim Builders As New System.Data.OleDb.OleDbConnectionStringBuilder
Builders("Provider") = "Microsoft.Jet.OLEDB.4.0"
Builders("Data Source") = "C:UsersJohnDocumentsVisual Studio 2008ProjectsSimpleSQLTestSimpleSQLTestdictionary.mdb"
[code]....
So trying to speed up the query. The read of the last item is just to see how long it takes. I do a different method in VB6 and it loads very quickly. Trying to load a dictionary that is over 200,000 rows.
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Jul 10, 2009
Scenario: Writing a scanning program, thing is I can't have duplicate file names(which I generate). The img file paths r saved in a database.I'm trying to write a function that will return all the records I need using a SQL SELECT. To make this work I need to put all the retrieved records(just the one field from the database) into an array.My Problem: I have no idea how to put the retrieved SQL query into an array and then return it.
Private Function fileNameAcquisition(ByVal path As String, ByVal id As Integer) As String
Dim conn As New SqlConnection
Dim dr As SqlDataReader
[code].....
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Jul 12, 2010
I seem to be having a heck of a time trying to figure out how to add the results from a mySQL query to an array in vb.net. Right now, I only understand that you have to define the dimension of the array, however this is shy of impossible since the dimension of the array will change due to different results from the query. What is the proper way to take my results and put them in an array?
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Apr 30, 2009
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.
[Code]...
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Mar 17, 2009
When looking at an array of bytes from a stream for a multi-page tiff document, can you determine where one page stops and another begins? I want to take a multi page document, let's say 50 pages and allow a user to pick different pages of that to make other muti-page documents.
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Jun 12, 2011
I have a text input in textbox1 in tab page 1 and i want that text from textbox1 will be displayed in textbox2 in tab page 2.
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Jun 11, 2012
I'm attempting to make a generic query executer function. I want to be able to send it a query string and have it return a two-dimensional array containing the results. Below is my code for how to do it with a (9,x) array. How can I do it with an (y,x) sized array? Also, I feel like there must be a more efficient way to do this..
[Code]...
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Oct 5, 2010
I wrote a page Page method in my aspx page. in web service method I need to call FindControl method return textbox and get text box value. But my findControl will take MasterPage object to iterate.
see my code
<script type = "text/javascript">
function ShowCurrentDateTime() {
$.ajax({
[Code]....
How to pass Master Page object or Page to Page method?. So I can use in Sared method.
Is there any way I can access Textbox value directly in Page method? I need access couple of controls in Page Method.
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Nov 4, 2010
HOW TO RUN THE JAVASCRIPT FUNCTION ON PAGE ONLOAD EVENT IN CONTENT PAGE OF MASTER PAGE.? means i have masterpage and the content page of master page namely default.aspx in vb.net.i wanna run javascript function in Default.aspx and i have called the function body onload in master page.when i run my website it shows the error "" Microsoft JScript Runtime Error : Object Expected ""
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May 17, 2012
I need sample vb.net code to save single windows form as many page and reload the page whenever i call that page...
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Nov 11, 2009
I am storing an array of a custom serializable class in session on my site. When a page on the site changes, suddenly it renders them invalid, and tells me that it can't cast the type to it's own type. I assume the class version numbers are changing or something?!
I'm not trying to redesign this whole process.
Unable to cast object of type 'ShipmentPackages[]' to type 'ShipmentPackages[]'.
Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidCastException: Unable to cast object of type 'ShipmentPackages[]' to type 'ShipmentPackages[]'.
[Code].....
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Jun 13, 2011
How can I get Webbrowser1 to navigate to each page and wait for the one page to completely load, then move to the next page...? [code]
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Aug 7, 2009
I have a master page which contains everything that inherits it within a form. A page inheriting from it needs to run some javascript to act on a text field on a page. However, I can't seem to reference that text field through the javascript, since the form begins on the master page. The following line will come up bogus: document.form1.txtFindUser.value = blah.responseText; This is because form1 is defined on the master page, while txtFindUser is on the current page.
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Feb 2, 2010
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)
[code]...
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Jul 3, 2006
Does anyone know why a Page_Load would be called twice on a page when requesting an aspx page?I am using .Net 2.0 with the new .net 1.1 compilation model installed. Whenever I request a page, the Page_Load on the aspx page appears to be called twice, so does the Page_Load on and user controls added to that page.
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