When I am working in a project I can reference the current form using "ME"...
Is there a way to reference the current control?
For example I am working in the button1_click subroutine. I can type button1.text but is there a MYCURRENTCONTROL.text that I can use?
I am after the one which is most used. A number of ones I have come across are:
CurDir
Environment.CurrentDirectory()
AppDomain.CurrentDomain.BaseDirectory
Application.StartupPath (this one doesn't work for me, missing a library?) I am using it to save a file, for argument sake, "test.txt"
I'm making a Windows Forms application and I am about to publish it to a ClickOnce to distribute on a CD. The program refers to a LOT of files, e.g. pictures, which I have in a folder on disc called GAMEFILES. It's in the Solution Explorer. That folder does itself have a lot of subfolders. (I'm sort of a tidiness freak.)[code]...
View 3 RepliesWhen using ASP we can reference HttpContext.Current from anywhere in the code to get at the current http context.
I want to do something similar using HttpListener, so that I can access GET/POST data etc from anywhere in my code. Can I reference some global object for this, or do I need to explicitly pass the current HttpListenerContext object all through my code?
I have a UserControl named DataGridViewFilterAndSorter that I built using a SplitContainer. In each Panel of the SplitContainer contains a FlowLayoutPanel and in each FlowLayoutPanel contains a LinkLabel.
I have a procedure that accepts a reference to one of the FlowLayoutPanels in the UserControl. I want to get a reference to the UserControl (DataGridViewFilterAndSorter) using the FlowLayoutPanel reference. Currently, I have to use this[code]...
I have created a user control and am able to add it to a page with out any problems, but how to I reference a control that is inside of the user control For example if I have a text box inside the user control and want to set the text property through code or get the text property, How can I reference the control inside the user control. I have tried a few different things but nothing seems to work when I type the usercontrolname.control.property I just get an error.
View 3 Repliesis there any way to reference a particular code routine in VB.net external to the current loop/routine?Example:
If Var01 < 5
[Routine A]
Else
[Routine B]
End If
where Routine A and Routine B are code sequences at the end of the entire program -- such as outside of the current sub or class? The idea would be to reference an otherwise repetitive code.
I'm drawing text in VB.net by using:
gfx.DrawString(_bText, New Font("Tahoma", 5), Brushes.Black, New Point(25, 5))
where gfx is a graphics object using my control. The x point is correct but I need the y to be the center of the current control (vertically).
CheckedDatetimePicker col inside DGV How can I get set checkState? I made an editControl and inserted a checkDateTimePicker column. I need to checkState of the control in currentRow. I have searched high and low..
View 1 RepliesSo I currently have a aspx page that shows details for any single staff member, and the page is setup with mostly ASP labels. I have a subroutine called "getstaffdata" that populates the page on load (via subroutine).
I would like to convert this to a page that shows details on one staff member, or many staff members, one after another. So I thought of using the repeater control, but I'm not sure how to convert the page over. The staff userids are passed via query string, but I'm just confused on how to do the datasource for the repeater control.
I have a DateTimePicker control that returns the current date.My usage is like this: DateTimeInput.Value.ToString("MMMM dd, yyyy")Please note that I need to get the date in the specified format.I just don't know how to add 1~2 years to the date.I mean if user selected January 01, 2009, I want to get January 01, 2010.So how can I add just 1 year or 2 years to the year of returned value?
View 3 RepliesIs it possible to disable the dates that appear before todays date in a dateTimePicker control?I want to put in some validation so that my users can only select days in the future...ie a future appointment date?
View 5 RepliesI'm trying to use the errortext field on a cell to display a validation error. It works fine if I leave the cell, but I can't figure out how to display it while staying in the cell. I have seen examples where the code updates the row's errortext, but I really want to mark the cell in error.
My code is:
Code Block
I am trying to find the current level of zoom in a webbrowser control. I know how to zoom but the same doesn't work for retrieving the current level of zoom. I am trying the following: VB.NET Syntax (Toggle Plain Text )
View 1 RepliesI'm using the iTunes library control to figure out the current song playing in my iTunes, but theres 1 annoying thing... everytime I load my program it now automatically starts iTunes. Is there a way to use the control and not have it launch iTunes with my program? Or a better way of getting the current iTunes song without using the iTunes control?
View 3 RepliesI am wanting to retrieve the current weeks dates from a DateTimePicker control.
Eg, if i select Tuesday July 5, 2011, i will return the following dates: Sun July 3 2011 right through to Sat 9 2011
If DateTimePicker1.Value.Year <= DateTimePicker2.Value.Year Then 'dtp2 = expiry date
If DateTimePicker1.Value.Month <= DateTimePicker2.Value.Month Then
MsgBox("Expiry Date Correct!")
Else
MsgBox("Expiry Date incorrect!")
End If
End If
How would I get it to check the date? Datetimepicker1 is the current date, while Datetimepicker2 is the expiry date.
Not sure why this is being so difficult..I want to reference a property of a control through code by its name. I should be able to use "Me.Controls("ControlName")", but this gives me an ArgumentNullReference exception, no matter how I try to do it.Here is what I'm doing:
I have several buttons on the form with standardized names (minExpandOSD, minExpandSettings, etc). All the buttons names start with "minExpand" and the last portion of the button name is always the same as its parent (a group box). Each of the group boxes also have a standard name (GroupOSD, GroupSettings, etc).Each groupbox has a minimize/maximize button. I have many group boxes. Rather than copy the same code block for each groupbox, I am trying to write a sub that can be called for each of the group boxes.
[Code]...
I know nothing of VB.NET, but if I were you
View 2 RepliesI wont to add swf file to my Vb.net project. I'm using Visual Studio 2010. How can i insert swf file to vb.net project ?
View 7 RepliesI'm new to VB (and .net), just started taking an introductory class. One of the things we've done is set up a little form that does basic math. It looks something like this:
Code:
[txt1] = [txt1mod1] + [txt1mod2] [btn1]
[txt2] = [txt2mod1] - [txt2mod2] [btn2]
[txt3] = [txt3mod1] * [txt3mod2] [btn3]
[txt4] = [txt4mod1] / [txt4mod2] [btn4]
When you click btn1, it adds the values txt1mod1 and txt1mod2 and displays the answer in txt1. The same happens for buttons 2, 3, 4 on their respective lines. So the way we handle this is to have four subprocedures that handle the button clicks, one for each button. I was thinking it would make more sense to have one function handle all of the button clicks, since it's basically the same thing. Through my own research I've learned you can have multiple events call one procedure like so:
Private Sub btn1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn1.Click, btn2.Click, btn3.Click, btn4.Click
'stuff
End Sub
But how do I determine which of the four buttons was clicked, and which text box values the user cares about? Then after doing so, how do I reference the relevant controls (txt[x]mod1, txt[x]mod2, txt[x])?
Code:
Dim b As Button = CType(sender, Button)
Dim t As String = b.Tag.ToString
But it gets a little fuzzy after that because I can't figure out how to reference the controls using the tags. I don't even know if I'm going down the right path. I can, for example, set some string to
Code:
strBox1 = String.Concat("txt",t,"mod1") 'string is "txt1mod1" for example
but trying to reference the control
Code:
...strBox1.Text...
gives me errors that, "Text is not a member of String."
Well, I don't know if this is correct or not, but it seems to work if I use "Controls()":
Code:
'if t = 1
Dim a As String = Controls(String.Concat("txt",t,"mod1")).Text 'value of txt1mod1
Dim b As String = Controls(String.Concat("txt",t,"mod1")).Text 'value of txt1mod2
Dim s As Integer = CInt(a) + CInt(b) 'im actually determing the operand elsewhere
Controls(String.Concat("txt",t)).Text = s.ToString
Do i need to add a reference to a third party control(DLL) before i can use it.When i go to project->add refernece ,i select the control but it didn't becomeavailable in toolbox to use it.Do i need to install that control?I just placed it inwindows/system32 dir.
View 6 RepliesIf i have a check box in a groupbox on my form, and i wanted to get the "control" using its name, how would i do that?
The function below returns the control, but only if the control is on the form directly. It doesn't function if the control (in my case, the checkbox) is in a groupbox, or on a tab control, or both!
Private Function getControlFromName(ByVal controlName As String) As System.Windows.Forms.Control
Return Me.Controls(controlName)
End Function
I am working on an inventory managment project for a lumber mill. I am currently writing a piece of software to be used on the sorting section of the mill. The problem I am having is when a stick of lumber needs to be cut down in lengt. My current setup has a combo box that is populated with lengths of lumber that we might have (2' - 60'), a "Add" button and a data control (homemade solution with lots of labels, and panels).
The user will scan a tag into the system, and the system pulls up the info from the db. If the piece need to be cut, the user will select the length of the cut, and click the add button. The system will then populate the first line of the data control with the info from the cut (previous piece info, and new length). It also populates a pieceObject struct. This happens for any additional cut that might happen.
The problem I am having is that everytime I press the "Add" button, the length variable will update every length in the piece array.
Here is a section of the code I am dealing with.
piece is a lumberPiece, and pieceAry is a array of 15 lumberPieces
Each time the add button is pressed, the current data is stored into the array, and then the pieceNum is incremented.
[code]...
I have searched the web for code relating to changing the system volume, muting the system volume, and outputing the current level of the volume as an integer, using VB.NET.
All the code that I have found either doesn't work, or is very long.
I have some different controls (PictureBox, Label,Button...) that are created by code. The set number of these controls isnot fixed. So let me set this number ton. And I have the following lines of code to create some of these controls.
For i5 As Integer = 0 To n
dBoxArray(i5) = New PictureBox 'PictureBox
Panel1.Controls.Add(dBoxArray(i5))
[code].....
I have a MS Access database set up, with a Period field that has either values 1, 2, 3, 4 or 5. I retrieve these values using a database connection and I would like to reference a particular control based on what period was grabbed from the database.
Here's example code, pseudo of course.
TextBox(dr(3)).Text = dr(0)
dr(3) contains the period, and dr(0) contains the content I would like to put into the text box. I have these text boxes on my form: TextBox1, TextBox2, TextBox3, TextBox4 and TextBox5.So if dr(3) contained 2 then I would want to reference TextBox2.
I have many textboxes that I need to reference dymanically. The controls themselves aren't dynamic, just the way I need to reference them.I've got several text boxes say:
txtMe1
txtMe2
txtMe3
...
txtMe100
I will need to randomly change one of the properties of the edit boxes. So lets say it picks a random number between 1-100 which is 56. So, I would want to change the background of my 56th edit box to:
txtMe56.Backcolour = Color.Gray
The only way I could think of doing this would be to have one giant select case statement to evaluate the random number. But, that is really dirty and not the best peformance wise (this could potentially get called hundreds of times) so was wondering what my options are?I tried to concatenate the random number to my generic control name 'txtMe' but it throws a wobbler. I essentially would want the following to worK:
dim iNum as integer = 56
txtMe & iNum & .Backcolour = Color.Gray
I'm writing a program that inserts controls onto a webform dynamically. Depending on a variable, I add either a textbox, a set of radio buttons, or a set of checkboxes. Later, after a user clicks a submit button I need to use the controls to determine if the user is submitting the correct answer, but when I try to reference the id of a control, I get "txtAnser is not declared. It may be inaccessible due to it's protections level. Here is the .aspx page (it's the standard content page of a master page):
[code]...
In THIS Thread:NickThissen Said:Quote:It will appear in the toolbox even if you put it in the current project, instead of a control library project.No, it does not have to be in a control library, nor does it have to be a UserControl, to appear in the Toolbox. Any class inheriting (either directly or indirectly) from Control or Component will appear in the Toolbox. Since RadioButton inherits from Control, and your control inherits from RadioButton, your control inherits from Control too, so it will appear in the Toolbox. I have successfully created a pretty cool custom control. I Built the project and have added the a reference to the .dll form a new Windows forms project. It works great, as long as I do something like THIS:
Dim ThisControl As New MyCustomControl
ThisControl.Top = 40
ThisCOntrol.Left = 40
[code]....
