I need to know what is the funcion of the below GetTooltiptooltippopup eventstoptimer methodAlso i need to know how can i let the tooltip works after remove all i mean how can i restore the tooltip work after the below code ToolTip1.RemoveAll()
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I created a function and I want to explain more about argument of methods. Now how can I do that such as .net method? (I want something such as tooltip text for methods).
View 4 RepliesI have the following search code which works fine. However, I have an additional task to do, which is create a count function for the Record found or Record not found. Presently what it does is it searches and if a record is found it displays at the tooltip "Record Found" if not it says "Record Not found". However, sometimes you have 2 or more records. Therefore, the tooltip should say the exact amount of records found.. For example, 3 Records Found or even 5 Records Found. Also if only one record is found it says "Record Found" but if more it should display " 2 Records Found".
Private Sub btnPerformSearch_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPerformSearch.Click
' Declare local variables...
Dim intPosition As Integer
' Determine the appropriate item selected and set the
' Sort property of the DataView object...
[Code] .....
how to hide bollon tooltip When user click on the ballon tooltip?
View 1 RepliesDoes anyone know if it's possible to skin the tooltip window so it looks like: Attachment 2448.Instead of the yellow box or the balloon like it does now?
View 1 RepliesI have a data structure (which is a class) called user_class and I want to load all the users data from a database.Currently I have
While SQLreader.Read()
Hold_user.username = SQLreader(0)
Hold_user.BlahBlahBlah = SQLreader(1)
[code]....
Where return_value is a List of user_class and hold_user is an instance of the same class.
Dim return_value As New List(Of user_class)
Dim Hold_user As New user_class
As the while statement loops through the read data, SQLreader(0),(1) and (2) are updated with new data, however they also appear to be updating the stored values held in return_value....
Need some help to develop a method/function. No problem if there is no code but I would like to start discussing the best way of doing this even in high level language. First of all would like to provide you with some information. The set that I use here is very small, but the data is on a table in mysql and there will be over a million rows. Its important because if I make a complex loop code, maybe there will be a lot of selects in there.[code]
View 9 Repliesi am trying to format a numeric variable so that zeros are appended to it in VB .Net.Basically i am trying to achieve the equivalence of format(variable,"00000") in vb6, so that if variable is say 15, it can be displayed as 00015. whats the way to do it in VB .Net.
View 4 RepliesI was wondering if there was a way to get the name of the property my statement is in, like I can get the name of a function in PHP with the magic constant __FUNCTION__. Is there a way to get that property name, and more in general, also for functions and methods?
View 1 RepliesI'm trying to create an extension method that returns an IEqualityComparer based on a lambda function. Heres the extension method:
<Extension()>
Public Function Comparer(Of T)(Func As Func(Of T, T, Boolean)) As IEqualityComparer(Of T)
Return New GenericComparer(Of T)(Func)
End Function
[Code]...
I have a Direction Enum:
Public Enum Direction
Left
Right
Top
Bottom
End Enum
And Sometimes I need to get the inverse, so it seems nice to write:
SomeDirection.Inverse()
But I can't put a method on an enum! However, I can add an Extension Method (VS2008+) to it.
In VB, Extension Methods must be inside Modules. I really don't like modules that much, and I'm trying to write a (moderately) simple class that I can share in a single file to be plugged into other projects.
Modules can only reside in the file/namespace level so I have one in the bottom of the file now:
Public Class MyClass
'...'
End Class
[Code]....
It works, and "if it ain't broke, don't fix it", but I'd love to know if I'm doing it wrong and there's a better way with less boilerplate. Maybe in .NET 4?
Finally, I know I could write a structure that behaves like an enum, but that seems even more backwards.
I am using Resharper 4.5 in Visual Studio 2008. Whenever I try to extract a block of code into a method, it tries to create a subroutine and not a function. The return type option is disabled. Does anyone have any advice as to how I can get it to create a function and not a subroutine?
View 1 RepliesI'm using VB6 and trying to get an instance of a Type Library object.After i retrieved the object and i'm trying to invoke a method. I'm getting this exception. However, i've checked with the parameters and its type. it is correct.I found something fishy, that method doesnt have return value. But it is throwing a compiler error whenever i'm trying to call the function and the compiler error went off when i get a return value from that method.I don't know,
View 1 RepliesLet say I have a function inside a class which require 4 parameter (table name,field name,field value, return field) When I use this function my form, such as
myclass.Search("customers", <-- after pressing the "," a popup list will be displayed that contain all the fields in "customers" table.
It is really too bad that Microsoft (who once had the best documentation in the business) has slipped so badly. Good documentation does not really require analysis, though, admittedly, it is a lot of work. To wit: for each and every single method, function, event and operator provide the following: a brief topical functional description including any parameters, a detailed description of how the object works, a workable example of the code needed to make this object do something useful and links to all possible associated objects (See Also).
I see pages upon pages of useless text and links to other pages full of links. This rapidly descends into a crevace of unbelievable complexity for the developer trying to find out something truly simple like filtering a DataGridView without changing the data connection. (As it turns out this is very simple to do but I could not find a single example of how to do it in the Visual Studio documentation.)
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]....
As the title says I have a form with many databound textboxes. some of these boxes have data in them and some are empty. I need to add them altogether, so far all of the conversion methods I have tried err out when they run into an empty string, except Val, but then Val won't handle the string with a $ in it. I've tried decimal.parse which handles the $ but not the empty string. So I seem to be in circle that I can't get out of.
View 2 RepliesWhy would I use an extension method instead of just creating non-extension sub or function?
For ex, I could have an extension function called IsNullOrEmptyOrAllSpaces on String, which does a check as its name implies. Or I can write a stand alone function that does the same thing. Other than having the extension show up in Intellisense, is there any advantage? Is a call to the extension quicker/more efficient than a call to a regular function?
I want to make an numerical integration method with takes in an analytic function and integrate it over a specific interval. For the numerical integration procedure I want to use some procedures in nr.com. The problem is that these are programmed in C++ and they uses functors to pass a function to the integration method. How can I do this in VB 2010?
I want to initialize the function (i.e. set a=1,b=0 for function y(x)=a*x+b) and then pass the function to the integration method. Then when the integration method call the function it only calls the function with one parameter (i.e. x since a,b is already set)
What is the best way to do this in VB2010?I want to make a general integration method where I can pass any single valued function and integration limits.
I have just started using VB, and from what I have found so far it seems like the tools you have is
- to us a delegate for the function
- to use a lambda expression for the function
- send a pointer/adressOf
- to create a function class/structure and submit this to the function
As for now I am most inclined to create a function-class. But I am not really sure how.F.ex. I make different classes for each "uniqe function" I want to integrate, but how can I pass them to the integration function when I need to specify the argument type in the integration-function-call?This seems like a basic problem which applies to many Math operations, so I think it would be very useful to clarify this.
Does calling the Dispose method on a Windows.Forms.Timer call it's Stop method? Or should I stop the timer before I dispose it?
View 5 RepliesI have a large problem with inheritance in vb.net. The problem is the following:
I have 2 forms => frmBase and frmChild
In frmBase i want to create a method Called StartWorking() and i want frmChild to inherit this method.
But here is the tricky thing: when frmChild.StartWorking is called i would like the following => without calling MyBase.StartWorking()
I want frmBase.StartWorking() to be executed first and after a test in frmBase.StartWorking if blnValue is true then frmChild.StartWorking has to be activated. if blnValue is false that frmChild.StartWorking cannot be activated.
I have nine pictures that I need to animate -I need to use the ToString method and a counter to concatenate a file name into a string variable from the Image.FromFile method. Once the counter reaches its maximum value, and the last picture is displayed, the counter should be reset to zero or one depending on how the first image file has been name. Also a static counter variable should be incremented in the time routine. what I have so far -- I know what I have to do; however, I just do not know how to code this properly.. Right now I have this going thru a button procedure but it needs to go through a timer.
[code]....
Write an overload for every numeric type or if possible constrain a generic extension method to just numeric types.
View 2 RepliesI just need to know what is the slight difference between them so I know which one to use everytime.
View 5 RepliesI will try to explain what I need.Let's say that I have a class like this:
Public Class Example1 Public Sub ToBeCalled()
[Code]...
When I am loading an Assembly dynamically, then calling a method from it, I appear to be getting the method from Assembly executing before the code in the method that is calling it.It does not appear to be executing in a Serial manner as I would expect. Can anyone shine some light on why this might be happening. Below is some code to illustrate what I am seeing, the code from the some.dll assembly calls a method named PerformLookup. For testing I put a similar MessageBox type output with "PerformLookup Time: " as the text. What I end up seeing is:
First: "PerformLookup Time: 40:842"
Second: "initIndex Time: 45:873"
Imports System
[code].....
I'm trying to undersatnd the syntax of calling a funciton and it seem confusing when I'm using a web service in ASP.net. Maybe this question should be in an ASP forum, but it is a VB question. This simple web service allows you to type in your name and it response with an alert box with you name.
My question is, How can you call a function with 2 arguments when the function is only defined for one. I understand that the second argument is actually a method that handling the respons, but how can you interchange function arguments for methods and how do you know that there are methods for
Here's my call:
<script type="text/javascript">
function HelloWorld()
{
var yourName = $get('txtYourName').value;
[CODE]...
I've got a ToolTip showing when hovering over a row in my DataGridView - Works great except for the ToolTip flickering when over a row that displays it.
[Code]...
So i'm trying to add a tooltip to a treenode, But with no luck. I've tried things like: Treeview.nodes(0).tooltiptext = "Hello"
View 2 RepliesIs there a way to have one specific row in a DataGridView have a tooltip? So when the user put there mouse over the row, anywhere on the row, the Tooltip would PopUP?Would like to be able to do it at runtime?
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