ok basically i've got a delegate ByVal function_to_execute As dele0 but instead of invoking it, i wish to add it to an eventhandler
Public Sub test(ByVal function_to_execute As d0)
Dim t As Timer = New Timer()
AddHandler t.Tick, AddressOf function_to_execute.address
[code].....
As part of my exception handling, particularly in class modules, I like to pass back the offending module name and the procedure in which the exception ocurred. I can get to the module name by using;
Me.ToString
and that returns AppName.ModuleName Is there a way to programatically get to the function or sub name. For now, I have to hard type it like this;
[code]....
I want to pass a List of T where T is an object I've created that has about ten properties (strings, dates and integers).The lst passes to the function successfully. I am also passing an New T of the Object (itm as T).I can see all the values (see image below), but because it's generic I cannot seem to retrieve the property values and I cannot figure out how to iterate through the properties of each itm as they are retrieved in the For Each.[code]
View 10 RepliesI have created a control, similar to an image combo, but a bit different. Any how, each of the labels that contians text to be clicked has an ID in their tag, that i wish to read. I have a sub routine called CBO_Click() which has the same arguments as a normal label click. How can i add the argument for the ID in the labels tag to be passed to this sub.
View 2 RepliesMarshal attributes to be passed as an argument in this Declare statement? [code]...
View 3 RepliesPrivate Sub SpecialMenu( ByVal ddItems As ToolStripItemCollection, method as ??)
...
AddHandler ddItems(item).Click, AddressOf method
...
How can I pass a sub address into a subroutine.
I understand delagates but not enough to figure this out.
I have a sub that creates and adds menu items to a menu and I need to use it in more than one project so I want to put it into a library.
But I don't know how pass it the address of the subs to attach to the new menu items.
From the below thread i could able to communicate to other system and send messages and play a default sound on receiving the message.[URl]..But i want to play the sound by receiving even the sound file as argument.
if i have below sound files on all the systems after installation in application folder...
sound1.wav
sound2.wav
sound3.wav
As of now i am playing for instance only "sound1.wav" if i send "sound2.wav" along with the message then the receiving system should play "sound2.wav"
I'm not having any errors from these pieces of code, they're just empty everytime. I'm wondering if I perhaps have created them incorrectly.
Dim l As New Log()
l.Log = "Attempted staff login with username [" & txtUsername.Text & "]"
l.LogId = 0
l.StaffId = 4
l.LogDate = Date.Now()
l.Insert()
.Insert() is picked up in my BLL layer by these two functions;
[Code] ......
I need a 2 functions:
1)the first that alert me when one month is passed ex: 25 december 2011 - 25 january 2012
2)the second that alert me when one week is passed ex: 25 december 2011 - 1 january 2012
Is there a Limit to the parameters that can be passed byVal or byRef to a function or procedure in vb .net ?
[URL]
My issue is regarding overloaded functions of the already provided IIf function that would handle specific types. As you all know the IIf function provided returns objects, rather a specific type so for my needs I created a few overloaded function to do just that but with a specific type in mind. So having said I have IIf functions for types of booleans, strings, bytes, integers, etc etc.
Now my problem is when I'm trying to pass a byte value to this function that would return one of the two byte values. When I do this the designer keeps confusing my values as an integer value and calls for me to convert it to a byte. If I did this then it would defeat my entire purpose for creating these functions-which is to avoid any conversions. The only way I can solve this is by converting the whole statement itself or the true/false parameter parts individual to specify to the designer that these values are bytes. I'm just hoping there's a way of identifying the difference between bytes and integers..
I'm trying to convert an old ASP.Net 1.0 application to ASP.Net 3.5 and am running into trouble with a JavaScript function. The application passes in content into an within a table cell. The function is supposed to calculate the height of the content and size the table cell appropriately.
way of accomplishing this with the
JavaScript function
<script language="javascript" type="text/javascript">
<!--
function calcHeight() {
[Code].....
Is there a way to write a single function that will control validating the input to any textbox? How to pass control of it.
E.g.: My second try was to:
Dim CurrentTextBox As TextBox << Declare a global
Write a function that uses the global textbox and takes in 2 parameters, one determining the length it has to validate and the second telling it what to do once the input is verified
Public Sub ConfirmInput(length As Integer, which As Integer)
If (CurrentTextBox.TextLength < length) Then
CurrentTextBox.BackColor = vbRed
GoTo DONE
ElseIf (CurrentTextBox.TextLength > length) Then
CurrentTextBox.BackColor = vbRed
[Code] .....
My first try was to pass a textBox parameter to the ConfirmInput function but I believe that's the same problem as above.
I am in vb.net and have a function that will be accessed by multiple threads. Everything inside the function uses local variables. However, each thread will pass in its own dataset by reference. From what I have read the local variables should be no problem, but I think the dataset coming in is a concern. How should I control access / execution of this function to make sure that it is thread safe?
View 1 RepliesI wrote a Log class that details the exception, including the method name and its arguments list,but I couldn't find any way to programmaticly retrieve the arguments values.in some forums it was said that its impossible mission. I find it very odd.my arguments list looks like:
argA As String = ?
argB As integer (Opional, Default value = 2) = ?
etc. only actual values are missing.
I am using visual basic and trying to create function. I am getting this error:
"Argument not specified for parameter '_IsDayRateCheckBox' of private function CalculateParikingCharges(_HoursDecimal As Decimal, _IsDayRateCheckBox As System.Windows.Forms.CheckBox) As Decimal'.
This is the code.
Private Function CalculateParkingCharges(ByVal _HoursDecimal As Decimal, ByVal _IsDayRateCheckBox As CheckBox) As Decimal
This is how I call the function.
Dim HoursDecimal As Decimal
Dim AmountOwedDecimal As Decimal
If Not Decimal.TryParse(HoursTextBox.Text, HoursDecimal) OrElse HoursDecimal < 0D Then
ErrorLabel.Visible = True
HoursTextBox.Focus()
[Code] .....
I have to create a program that finds the total cost for pizza, fries, and soft drinks, and places that in a list box. So far, though, I'm stuck. I have this code so far:
Public
Class frmBill
Private
Sub btnTotal_Click(ByVal
sender As System.Object,
[Code] .....
The errors that I am getting are:
"Argument not specified for parameter 'D' of Public Function totalBill(P As Double, F As Double, D As Double)
"Argument not specified for parameter 'F' of Public Function totalBill(P As Double, F As Double, D As Double)
"Argument not specified for parameter 'P' of Public Function totalBill(P As Double, F As Double, D As Double)"
I try to convert names and values parameters of function into a hashtable. For name of parameter, it's ok, but not for value.
Function test(ByVal param1 As String, ByVal param2 As String) As Hashtable
Dim hash As Hashtable = New Hashtable
Dim stFrame As New StackFrame
[Code]....
There is a property to get default value of parameter (if optional) with param.DefaultValue but how to get current value ?
How can I create a function that returns an object of a certain type, which the user of the function specify in the argument (using vb.net 2010) ?
[Code]...
The code above doesn't work, but maybe it can explain what I want to achieve. Using this feature, I want to hydrate my data transfer objects from datatable. Client will just call this function, specifying which DTO the client wants, and this function will just create that DTO and populating the properties with reflection GetType.GetProperties().
I need to access a DLL function which has a void pointer argument (probably written in C/C++). In VB6 it could be accessed by declaring the argument as 'Any'. VB2008/VB2010 does not know this variable type 'Any'.
I tried instead: Object, IntPtr, UIntPtr, Int32(), Long e.t.c. but there always occurs a compile error or a runtime error.I did a lot of Internet investigation but could not find any answer.
Is there a solution to this?
I have several parameters consisting of separate System.Byte() arrays. What I need is the syntax for a function declaration where the parameter is an array of arrays - I do not want to delve into System.Collections, and it's my preference not to CType each array into an Object and then back into a Byte().
Problem I'm having here is that:
Public Function MyFunc(arrayparam() As System.Byte) As System.Byte()
accepts a single-dimensional Array of individual Bytes.
Then Public Function MyFunc(arrayparam() As System.Byte()) As System.Byte()
How can i pass the button click as an argument in a function.
View 6 RepliesIm trying to pass a array as a argument to a Javascript function from code behind(vb.net)
Code im trying
[code].....
I want to specify an List(Of String) as an Optional function argument. But i am unable to initialize it in the function declaration.
View 1 RepliesVB.NET is not letting me dance with both feet, or piss with both hands. I've got one foot and one arm tied behind my back at every turn. I want to use this statement in a function:
Return CType(Formatter.Deserialize(FS), DS)
Seems doable, right?
Function ReadFileStream(ByRef FS As FileStream, ByRef DS As Object)
Dim Formatter As New BinaryFormatter
FS.Position = 0
Return CType(Formatter.Deserialize(FS), DS)
End Function
Right? I mean, CType only accepts a class name as the second argument. I can't give it an instance of a class, or it croaks. Yet if I try to pass the class name as the argument to that function:
DataInfo = ReadFileStream(FileStream1, DataStruct)
VB.NET croaks on this, too, complaining that "'DataStruct' is a type and cannot be used as an expression.". It's used as an expression by CType just fine outside of the function. Does the VB.NET legislature provide a clause that allows for a 'Type' to be passed as an argument in a function? Writing all the supporting code ten million times to deserialize a file using CType ten million times in a large application will get very complicated and tricky very quickly. It should be handled by a routine so that any cases and adjustments that come up can be dealt with in one spot.
I have an Excel VBA function that takes a number of optional parameters, including an optional Range:
Function DazBeta(A As Range, Z As Range, _
B As Integer, _
Optional Freq As Integer = 1, _
Optional c As Double = 0, _
Optional r As Range, _
Optional Pct As Boolean = True, _
Optional Label As Integer = 1)
I am translating to VB.NET, and it's the optional Range that is giving me grief because VB.NET does allow optional Ranges. Or rather, optional parameters must provide a default value. What is the recommended way to change the VB.NET function signature so that the code is callable from an Excel cell as a UDF? (The VB.NET implements a UDF, the assembly is registered as a COM server, and the Excel spreadsheet is told of this server and type library, allowing the VB.NET code to be called from an Excel spreadsheet cell.) I have other compilation problems, so I have not been able to explore this. I am thinking that accepting an optional Object (default value Nothing) might work and then I could cast the Object to a Range. Alternatively, if there were a default value that could be specified with an optional Range, that would work, too.
It seems like SO often I need to attach a "valid" flag to a standard type. For example - I have a function called "CalculateLunchTime" that I pass a vector of times. If the vector has 0 elements, they did not take a lunch, so the duration is 0 minutes. If the vector has 2 elements, subtract them and that is the lunch duration. If the vector has one element, it doesn't make sense to calculate a duration, but I don't want to return 0 because that was for the first case. In this case the valid range is >0, so of course I could return -1 or something, but it really bothers me having these magic numbers running around. I would really want to do something like
public function LunchTime(byval Times as list(of Date)) as ValidDouble
dim lunch as ValidDouble
if Times.count == 2
[Code]....
Of course I could make a struct with a double and a bool, but I have really never seen anyone else do that so I feel like it could be a bad idea (why?). It would seem a little nicer if I could derive ValidDouble from double.
I've got an array that contains the following:
a;b;c;d
but it can also be that this array contains this:
a;b;c;d;(0,0,1000,1000)#(1000,1000,2000,0)
So first I do a split on ";"
If Ubound(array)= 4 then I now the second case with coordinates is valid... in this case 2 sets of 4 coordinates
How do I derive them from array(4) as xstart0,ystart0,xend0,yend0 and xstart1,ystart1,xend1,yend1 ???
Do I need to do another split on "#" first and then on the "," ?
I need to generate the IV and the KEY for an AES cryptography. I want to use the password and i am asking if it is safe to use the same password to get the Key and the IV?
View 2 Replies[URL] That way if the string that is not recognised that is passed to Color.FromName it returns a SolidColor of
Color.Black = Color.FromARGB(255,0,0,0)
That way, Forms and controls that only support SolidColors are supported.Installing VB6 on Windows 7?