.net - Route Event Using A Method Argument?
Nov 10, 2011
I just have a short question about adding an destination methode as variable argument into my calling methode.
I want to send a "TextChanged" event to a special textbox. But I want to have a "variable" in my methode to add the handler to the textbox. Because it is possible to change the textbox and then I can change the handler where the "Changed Events" should be routed to.
can you replace the questionmarks below??
Dim TextBox1 as TextBox
Dim TextBox2 as TextBox
Private Sub DoIt
[Code].....
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Oct 19, 2010
Consider a MyForm class that contains a shadowed implementation of Show(). It also contains a CreateForm() method, which accepts an instance of the form and calls the shadowed sub:
[Code]....
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Mar 22, 2012
I am trying to use a single RouteURL to route to different pages dependent on the Route name but when I click on a button within my aspx page the page gets routed back to itself:Here is what I have in my Global.asax
Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)
' Code that runs on application startup
RegisterRoutes(RouteTable.Routes)[code].....
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Dec 23, 2009
As you noticed, in the code bellow, the event argument for the form click event has the type "TimedEventArgument".When the event is raised, e.Time holds the time where the form was clicked.Add the missing code in the class Form1 to make this work.You will not change anything to the methods "Form1_Click" or "Form1.Load".You will not use Option Strict On. HOWEVER, you will not do any narrowing or late binding that wouldn't have been allowed if Option Strict was on.You cannot create any new Class, Structure or Module.You cannot cast the EventArgs to TimedEventArg in any way
[code]...
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Aug 16, 2010
I have some code in c#
BeginInvoke(new MethodInvoker( delegate() {myAppMethod_Tick(sender, e); }));
Now, When I tried to convert that code to vb.net I have below..
BeginInvoke(New MethodInvoker(Function() Do myAppMethod_Tick(sender, e) End Function))
But it does not compile.. What's problem for it?
Because my c# application works ok without any problem..
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Aug 4, 2011
i have these 3 sets of code that are giving me INT() errors. Error: Expression is not an array or a method, and cannot have an argument list.
Code1:
Private Sub Form6_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim Browser As New WebBrowser
[code]....
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Jan 27, 2011
I have a class and method exposed to a client asp.net app. The class looks like
<DataContract()> _
Public Class Class1
Private v_string As String
Private v_integer As Integer
[code]....
The method is declared as
<OperationContract()> _
Function GetStuff(ByVal bar As Class1) As String
In the client code I create an instance of Class1 and set the values for v_string and v_integer, but using Wireshark to look at the xml being sent to the server only a value for v_string is being sent as part of Class1. I'm guessing this is because it considers the value of v_integer to be null/not set. Here is an example of the client code.
Dim MyService as New Service1.ServiceClient
Dim test as New Service1.Class1
test.P_integer = 1
[code]....
how different types are passed/used since Integer is a intergral type and String is a class, but can't seem to work out what to do to fix the problem.
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Jan 15, 2012
my current solution as you can see is by using shared variable within a class in order to pass a value.
on the form load of my application i called: workerSample.RunWorkerAsync
Dim finalList As List(Of String)
Private Sub workerSample_DoWork(ByVal sender As System.Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles workerSample.DoWork
[Code].....
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Sep 6, 2011
I have some experience developing for VBA inside Office apps, but I am quite new to VB.NET, and I just noticed that its WebBrowser control is a bit different from that one I used to reference via ShDocVw to use in my VBA Forms.ShDocVw.WebBrowser had the DocumentComplete event, which passed these arguments: URL as string and pDisp as object..NET WebBrowser has the DocumentCompleted event, in which i successfully found e.URL.ToString, but I couldn't find nothing similar to the pDisp object.
This is critical to me on migrating my project from VBA to VB.NET, for I need to handle particular IFrames when they complete loading, which I only could do by getting pDisp's document property. So I need help on learning how to do the same thing with this .NET WebBrowser control, and/or how to reference and use good ole ShDocVw.WebBroser in my Visual Studio project, to embed it in my forms.
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May 16, 2011
My goal is to have the user be able to click the row and the row will be the selected row almost like having the select button but the entire row clickable to do the same thingthe error i get popups when i click the row, not when the webpage is loaded
this is the onrowdatabound portion i just added that causes the error
If e.Row.RowType = DataControlRowType.DataRow Then
' Get reference to button field in the gridview.
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Oct 28, 2009
I am getting two errors for "expression is not an array or method, and cannot have an argument list," When debugging, the formula works quite well. However I will lose points for blue squiggly lines. I am not allowed to use any built in functions like math.
[Code]...
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Dec 5, 2011
I made this procedure re-use a select query:
[code..]
And I use it like this if I would want the selected value placed in a textbox and it works fine
[code...]
However if I want the value to be passed in a string like so:
[code...]
The string ends up having an empty string value. How do I assign the value I queried to that String?
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Oct 12, 2011
I have the following VB function which takes a FileInfo object as a parameter:
Public Shared Shadows Sub Start(ByVal filePath As FieldInfo)
XmlConfigurator.ConfigureAndWatch(New System.IO.FileInfo(filePath.ToString()))
End Sub
In another class I have the following code calling that 'Start' method. But VisStudio indicates there is a problem with the 'FilePath' argument that I'm passing.
[Code]...
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Jul 3, 2009
Im a computer technician and deal with arounf 35 pcs a day that are all diff and all of them have a ID numbet that is unique. I want to keep track of the repairs on each of the ID's so i can search a ID and input different repairs each time that pc comes in. Im not sure what kind of DB would be suitable or how to do that. Im not asking for someone to do it for me but if you could give advice or examples that would help alot. I imagine a list of IDs and when i click one it brings up a history of the repairs done and i can create another one if needed.
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Aug 15, 2011
am writing a class that has the same name for events and method, but visual studion won't allow me
The event
public event Close()
the method
Public Sub Close()
End Sub
how can i do this, i don't want to use different names
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Jul 31, 2009
In the program that im working on for a friend, are a lot of addresses (ex: 123 henry blv, City, State, Zip, county)
This is all in database, but he want to be able, to select a few of them, for ex all the ones in one county, and than the program need to put them in order fot the shortest route btween them.
All i need is the list at the and, right now he does this in a routeplanner program, but take about two hours for 15 to 20 adresses,
Programes used: visual studio 2008 sql 05 express
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Apr 23, 2012
i want to get location of all black pixel inside the picturebox like the picture2,3 and 4 belownd here's my code
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles b1.Click
[code]......
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Aug 12, 2010
The current project I'm working on requires me to automate some VB.NET code to run every 24 hours. Currently I have everything tied to a local webpage and I've just been calling it all from a button click in a browser.
My question is....what is the best way for me to start getting this to run on a schedule time frame? I've been looking into triggers, but if I'm not mistaken those are supposed to execute when an event is taken on the actual database. No action is taking place, I just need the code to execute. I've executed SQL statements with VBScript and task manager, but I've never had to work with VB.NET and SQL Server (using 2008) in this manner.
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Jul 1, 2010
How to raise combobox_SelectedIndexChanged(object sender, EventArgs e) programmatically? Lets say i have method called ClearFields(). I want to call the event before i hit the end of Clearfields() method.
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Mar 9, 2010
If I have a string that contains the name of a control is there a way to call that control's click event?
Dim a as string = "MyButton1"
Now I want to call MyButton1.Click Method or MyButton_Click Event using the contents of a.
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Aug 23, 2011
I'm another newbie with VB (2010) so please bear with me. I am attempting to make a method that is event driven by data threads on the Ethernet port. Simply put, the method is to wait until a data thread from a "Control By Web" 5-input device sends an "information update" data packet to the application, with the application then processing the information. This application is on a private, well controlled network, with no access to the internet. I have a method that is working right now reading data packets when invoked with a timer (see code below) but I really need it to be event driven.
' this is added at the top of the class
Dim tcplistener As New TcpListener(IPAddress.Any, ip_port)
'this is added in the "form1_load" module
[code]....
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Sep 16, 2009
may i know how to implement a delegate method into my project> currently i am using the serial port polling method by using a timer to read from the serial port, but now i am changing the method to delegate part.i have the code for the delegate part updating to the text box control but how do i modify it to update the mainform with my program codes.
The part for the delegate code is here
'---Event handler for the DataReceived event---
Private Sub DataReceived( _
ByVal sender As Object, _
ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) _
[code]....
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Dec 17, 2011
I am converting an existing classic ASP website to (VB) MVC and I don't want any of the existing URLs to break. I have read many posts (like this one: Routing Classic ASP Requests To .NET - SEO Redirects) about how to do the proper 301 redirect. With the latest MVC release, I've gathered that
Response.RedirectPermanent(objRedirect.new_url, True)is all that is needed.
I have entered all of my old URLs in a database table with a corresponding column of the new URL. I have added code in my custom 404 page to get the original URL:
Dim strURL As String = Request.RawUrl.Substring(Request.RawUrl.IndexOf("aspxerrorpath=") + 15).ToLower()
so I can look it up in the database. (Interesting sidenote, MSDN's documentation here - Redirect Mode - seems to say that if I set RedirectMode=ResponseRewrite in the CustomErrors section of my web.config, I won't have to worry about doing the above, but when I've tried that, I get IIS errors saying it won't serve an ASP page?The problem I am encountering is that any of my old, Classic ASP URLs that have the same directory as a new MVC route are somehow being partially routed. For example, "/test/default.asp" shows up as "/test/test" in the above strURL variable of my error page.
[Code]...
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Dec 15, 2011
Given that I have a file in path: C:ApplicationsGeneral UtilsAssembly1Assembly1BinDebugAssembly1.dll
and I am working in the following path:C:ApplicationsUnder DevelopmentApp1App1
is there some easy way to find the dotted path route from the application to the assembly:
General UtilsAssembly1Assembly1BinDebugAssembly1.dll
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Dec 9, 2009
im looking to do a trace route to an ip (specified in a text box) and have the results displayed in a textbox. I know that this has been brought up in the forums before but im yet to find a version thats compatible with vb 2008 express edition. The vb.netmvps example is exactly the functionality im looking for but it throws up 80 +errors(*** is no longer supported etc)[URL]the host resolution isnt an issue becasue i already have the list of ip's and corresponding host names that i would be tracing in a db.
does anyone have a tracert app that is compatible with this version of vb or indeed know where i could find one ?
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Apr 20, 2012
When you click on a button control on a web form visual studio automatically put in this code for you in the code behind.
Protected Sub btnSave_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnFlightInfo.Click
end Sub
Say for example, I wanted to call this method from another method. How would I do that? I know that the sender is the actual button object, but what is e? Here is what I have so far inside another sub. Just trying to get a better understanding of how this method works.
btnSave_Click(btnSave, ??what would you put there??)
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Sep 5, 2009
I need to call a text box keydown event from another method. How to I create and event args for this to pass to the method?
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Nov 20, 2009
So Ive got some code thats in a public sub outside of my button.
Here is that.
CODE:
How can I call that method from a button click event?
What code goes between the
CODE:
This is obviously not entirely my code, E.G. the few errors from my attempt at implementing, however, before I even finish that Id like to know how to call that method from a button or form load, or any other event for that matter.
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Mar 18, 2011
Why do Me.Hide() And me.visible do nothing under form loading event? Now the obvious answer to me was because how could you call a form to hide if it has not loaded. Make's sense to me. So i checked the documentation to see what options i had. If the form isn't loaded when the Hide method is invoked, the Hide method loads the form but doesn't display it. Interesting. So from what i gather here me.hide should still hide the form. Or have i misinterpreted the documentation? Because the form does still display. Neither also work under Public Sub New().
The only solution i found was under sub new was to change the forms opacity to nothing. Which works fine. But after reading the documentation on Opacity i am still left with another question regarding "Visible vs Hide Vs Opacity" Calling me.hide makes the forms visible property false, Calling opacity set to Nothing makes the form in visible. Both these methods do the required task but does one take up more memory or should be favored over the other? Just because some thing work's i have learned it is not always necessarily the best way to do something.
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Nov 2, 2011
Method 'Private Sub trigger_Triggered(sender As Object, e As OamsIDD.VoamsWorldIDD.OamsStateChangeEventArgs)' cannot handle event 'Public Event Triggered(sender As Object, e As OamsIDD.VoamsWorldIDD.OamsStateChangeEventArgs)' because
[code].....
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