.net - Code Behind From Adding AJAX Exentenders?
Jan 17, 2012
I am working on adding some ajax controls for either a hover menu or popup control. But when I do I get the following code.<System.Web.Services.WebMethodAttribute()> <System.Web.Script.Services.ScriptMethodAttribute()> _
Public Shared Function GetDynamicContent(ByVal contextKey As System.String) As System.String
End Function I am trying to find out exactly how to code against this function. I am at a bit of a loss with regard to the WebMethodAttribute, and ScriptMethodAttribute, one would think I could delete one or the other. I watched numerous videos by MS and others and this code behind is not covered.
If someone could point to some tutorials, MSDN, white papers, or web sites where this is used, or in a project or something,
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Dec 22, 2009
I have a custom control that does some work for me on async postbacks. Normally, I'd call the control directly from the presentation side using the following code on the ASPX page:
<mytag:CustomControl runat="server">
html (or other text) goes here
</mytag:CustomControl>
[code]....
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Jan 30, 2012
[code]...
In the above code I am having issue debugging. The point of this is in the HTML I have three select tags.District, County, and City. If you select a District it should update County and City to limit only the Counties or Cities in that District. City works perfectly but County does not. I discovered that when running through this code above if it runs through the County Case segment it just stops filter = String.Format("maintdisnmbr in ({}0)", filterValue). If I step through step by step the code does not finish. If I don't go step by step and jump ahead it gives me an error saying the Input string is not formatted.
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May 19, 2012
Searched a bit, couldn't find a clear answer.I have a big HTML table with numbers in it. I have a selector (radiobuttonlist) that the user can click if he wants to see the table in $ or days.Right now it works perfectly but the page refreshes because i'm calling a code-behind function (RefreshTable) everytime the user clicks on one of the two radiobutton since it changes the format and needs new calculation done by the RefreshTable function
. Is there any ways I can call that function without refreshing the page using ajax or something ?
The function has only one parameter : ProjectID, it's coded in VB.NET and we're using ASP.NET
Here's the table code from the .ASPX page, it's only the shell, everything is added thru a VB.NET method called when the RadioButton is changed (autopostback=true), so we check wich one is selected and execute the VB.NET method to populate the table. (code of the function is below)
[Code]...
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Feb 2, 2011
using a RadWindow control, pop up a modal window containing a dynamically populated CheckBoxList based on user selection on dropdownlist changed.
<telerik:RadWindow ID="UserListDialog" runat="server" Title="Editing record" Width="250" Height="536" VisibleOnPageLoad="false" Modal=true Behaviors="Minimize, Move, Resize,Maximize" Left="580" Top="-8" EnableShadow="true">
[Code].....
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Jan 4, 2011
This sounds like the stupidest question ever!!! BUT what is the code for adding a number to a label with the label's value being calculated dependent on user input?! So you choose 2 numbers to multiply, If a box is ticked then you add 10 to the label. I've got everything else I just can't work out the structure/code for this little bit.
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May 26, 2009
I have the below code which will send xml to me website when Button3 is clicked:
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Button3.Click
If RichTextBox2.Text = "Please enter the XML Data" Then
[code].....
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Feb 17, 2011
I hope you can tell me what is wrong with my code. I have tried this code below, And when the my requirements are met. the messageBox keeps loading, for as long as my requirements are met. (I get hundreds of messageBox's). I am using Visual Basic 2010.
Basicaly when a progressBar1 reaches a percentage I have Stated I what a MessageBox to show a message. and because the message is long would I add vbNewLine where I have Underlined.[code...]
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Aug 14, 2011
I am trying to create and remove a series of controls programatically. The user will have a numeric updown to pick a number. The program will then create a bunch of duplicate controls based on whatever number they pick on the fly.
Public Class Form1
Private Sub NumericUpDown1_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles numberDebts.ValueChanged[code].....
The creation part works just fine.As the number is toggled upward a new label is created.However whenever I remove labels it acts very strangely.The first time I bring it down it works just fine. Then the next 3 do nothing but the 4th removes another line.I can also toggle back and forth and it will eventually remove the label. So for example.
Starts with 1 selected - 1 label visible (1)
Change to 2 - 2 labels visible (1-2)
Change to 3 - 3 labels visible (1-3)[code]....
If I toggle back and forth between 2 and 3 eventually label 4 will go away.I want only 1- my numeric up down value to be displayed and have everything else after that removed.
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Dec 13, 2010
I am creating an application install program, but one of the main things i cannot get working is the combobox, this is a drop down list of all my applications that i have put in there. I was wondering if there was a way you could tell the combobox to look at a directory or share and list the names of files within it? So, for example i could place 5 programs inside a share or directory then when i run the program and the click the drop down combo the 5 programs are listed and then i can click and install this program. Also then if i add/remove any programs it also removes it from the combo list.
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Mar 3, 2010
I have made it so that as soon as the form opens it puts an icon in the tray and when you right click the icon it comes up with a contextmenustrip. in the form I have put a button and a textbox. when you click the button, it creates a new item in the contextmenustrip What I wanted to do was add a peice of code to this new item, is this possible?
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Sep 13, 2011
i am in runtime mode and have a form open. I do some calculations on it and based on those i generate some lines of VB code (concatenated and saved in a local variable). Is there a VB command that i can use that will take this code and INSERT it into another form?
i could copy the code, exit runtime, go to design mode and paste it into the form myself but because i want to do this for several subs for a lot of forms then it will become very time consuming.
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Feb 6, 2011
I want to custom code to a report. For example, I have a text box, txtABC on the report. I want to assign it a value from variable, when report runs. How to do it.
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Jun 15, 2011
I have a web form but I have to do this by code since I dont know the number of hyperlinks I need from the beginning.How can I add some hyperlinks with Image in a label, the number of hyperlink depends on the number of rows of a query, and each row give me the link information to navigate.
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Sep 9, 2009
I am using ASP.NET with MasterPages. Thus i cant just place this link in my pages that reference my MasterPage.
<link rel="canonical" href="http://www.erate.co.za/" />
I need to place this link in though my Page Load of each one of my pages. How would i do this through code? I am using VB.NET but C# will also help me in the right direction.This is how i did it for my DESCRIPTION tag in my code behind.
Dim tag As HtmlMeta = New HtmlMeta()
tag.Name = "description"
tag.Content = "Find or rate any company in South Africa for FREE and rate them"
Header.Controls.Add(tag)
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Jan 14, 2010
In using the IDisposable Interface, the two subroutines are displayed in my code from Microsoft when coded. How do I do the same with an Interface that I write? Is it possible or is this a feature that only Microsoft can do? I am using Visual Studio 2005!
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Jan 24, 2012
Today I'm facing the problem of adding code when the program is running.I know i can execute command, (like when i press button1 it does the command in textbox1) but I want the code to be saved.Using the setting or resource tab is not an option, (don't ask why).
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Apr 28, 2010
What I am trying to do is create a form in code that runs while the BackGround worker is running.I created a form the normal way with a label and progress bar but I want to update the label with what is going on in the BackGround Worker.Doing it the standard way isn't updating the label on the form.So my next idea is to create a form in code which I have done, but now I can't remember how to add controls to that form at runtime.Here is the code I have so far.[code]So from here I have tried the CreateControl() and the Controls.Add() and neither one is working for me.
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Dec 3, 2009
How to avoid aiding the development of malicious code I see an uncomfortable number of questions asking for info that could easily be put to malicious use. You can probe the OP to discover their intent, and you get replies that come in one of two flavors.
I have come to realize that trying to discover their intent is a waste time. Not because of the reactions, but their intent is really irrelevant to the matter at hand. Security. Posting code of any nature in a public forum that can be abused for malicious purposes is outright reckless. I wish could provide the help they request, but I don't know most of those programming tricks anyway. I would discourage anyone from publicly posting code that could be perverted no matter what the person asking for it claims. Their claims take a back seat to common sense. Anyone can read the post, people. Don't post anything that could become part of someone's malicious software in public.
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Jul 19, 2010
I'm having some problems with the IDE for VS 2010 Professional. When I click a button to add a click event procedure, it's not switching over to code view. It also seems to be adding a bunch of extra code that I didn't add for other controls.
Private Sub dgvData_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs)
End Sub
Private Sub btnChange_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
[code]....
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Feb 9, 2009
What is the source code for Adding Your program to Starup? for VB2008
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Nov 16, 2009
Dim wBrowser As New WebBrowserTabControl1.SelectedTab.Controls.Add(wBrowser)I used the above code to add a WebBrowser to a tab, but I have no idea how to use declarations for it after adding it in code. I'm mainly after the
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Jun 18, 2009
I've got a form with a TabControl. PictureBoxes (containing thumbnails) are added to each TabPage thru a loop. A click event Handler is added for each PictureBox. When a PictureBox is clicked, a new form is created thru code and a PictureBox is added to it that shows the pictures enlarged. What I need is to add another Handler to the PictureBox in the code-generated form so that I can rotate the pictures because some of them (photographs) were taken with the camera at 90 degree angles from vertical. I've tried to come up with a solution but I always run into the problem of the PictureBox on the code-generated form needing to be declared WithEvents before a Handler can be added.
Code for adding PictureBoxes to TabControl:
'Variable p declared public withevents at class level
p = New PictureBox
img = Image.FromFile(Path.GetFullPath(picfile))
[Code].....
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Apr 15, 2012
I have below code that set customised form border color and title. the form is missing icon though.how to add icon to the form as well.
Code blocks are created by indenting at least 4 spaces... and can span multiple lines 'A form with custom border and title bar.'Some functions, such as resize the window via mouse, are not implemented yet.
Public Class CustomBorderColorForm
'The color and the width of the border.
Private borderColor As Color = Color.GreenYellow
Private borderWidth As Integer = 3
[code]....
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Jul 30, 2009
I have a simple poker game that deals out 9 cards into pictureboxes and shows another 3 pictureboxes that hold cards for the dealer. The code itself does what I want it to...even though I'm at a dead end with writing the code further to evaluate the poker hands. I would simply like to add a few labels and a combobox to my form, but everytime I add something, or try to add it I get cast error?
Public Class Form1
Dim ListOfCards As New List(Of String)
Dim dealtCards As New List(Of String)
[code].....
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Mar 29, 2011
In the example from my book, I'm coding a button click event, and adding the code..."me.width=me.width + 20"The author states that "me refers to the object to which the code belongs(in this case the form)".
But this isn't exactly accurate, is it? The "code belongs" to the button object -- not the form object, right? So, I'm guessing that what the author really should have said is that "me refers to what ever form you're working on". Would that be true?
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Feb 17, 2011
Looping code is adding my values multiple times
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Jun 6, 2012
I have written a program and have used it (in debug mode) multiple times to test it out sometimes adding code and/or changing it. After a while any code I wrote or new buttons or features I added to the form would not appear while debugging. I don't know what circumstances led to this.
The only solution I found was to rewrite my code from scratch, however, the problem came back after a while. I don't know what is going on and I can't move on without starting all over again.
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Nov 19, 2011
I have forms with multiple pictureboxes, labels, etc. They are all numbered, for example, pb_QL01 to pb_QL99, or lb_Main01 to lb_Main29. In the old days, I could reference the properties of these in code using, for example, Me.Controls(a).Image where 'a' was the string of the name of the object (e.g. "pb_QL23"). So, I get it that you can't do this anymore in QB2008 (too bad). I need to set the properties in loops. [Code]
but it takes a long time to cycle through all of my controls, and there are some properties that will not work (like mycontrol.image), image not an option. So, is there an easy way to get this done? I don't want to add the controls in code, since they already exist on the form. If I have to use collections (which I'd prefer not to if there is an analogous way to the old way of passing the name of the control in code with a string, but if I need to, how do I get this to work.
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Mar 27, 2012
In the early generations of VB.NET visual studio, I used to see an automatically generated region named "Windows Form Designer generated code" that includes the code that generates the controls at the surface of a form. But what happened with VS 2008, I can't see that region any more ? Where are the lines of code that are automatically generated that create controls and set there properties ????? Luai Alrantisi, BSc in Computer Engineering, University of Ottawa 2007, Canada. IT Manager of MTN Mobile Telecom.
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