I have an app that has a lot of buttons. Once a user clicks a button it runs a subroutine. I need to pass the button name to the subroutine and then update that buttons text property to a variable.
View 18 RepliesI have a form with tons of buttons on it. each button has a corisponding entry in a database. What I am trying yo do is change the colors of the buttons depending on the data in the database. I can read the data from the data base fine. here is what I have: the button names are as such: button & the plutnum
while not rs.eof
plotnum = rs("plotnum")
plotcolor = rs("plotcolor")
me.(button & plotnum).backcolor.(plotcolor)
[Code]...
I'm trying to call make visible an object, i can do this:
Button1.Visible = True
but, i was wondering if there is a way that i can call it like this. Lets say i have a variable 'OBJNAME' wich value is "Button1". What i want to do is to make visible the button like this:
OBJNAME.Visible = True
I want to do this because i have like 100 objects to show in the form and i dont want to code for every one of them.
I am working on an alarm system software, which is SMS-based. I am using a GSM modem to receive the SMS when a client's premise security devices are triggered. The types of SMS text received will be like for e.g. "fire alert"(when devices triggers), "fire clear"(when devices are 'reset').
My program can detect real and false alarm, it works this way, i will input a premise site-map on a picture box at the main GUI, i can then create buttons at run-time and drag them to the respective position on the map. The buttons created have their text set as the client's block number referred to the database. So basically, a button represent a client. When a device in the client's premise is triggered, a SMS will be sent and my GSM modem will receive it, process the SMS and the button representing the client will start 'flashing' showing that the client's premise is under danger. Then when the button is clicked, which acts as an acknowledgement, will display the client's information on labels and turning that specific button to red color. Finally, when the device is 'resetted' in the client's premise, it will send another SMS to my GSM modem, after processing, the button will be back to normal.
But my program has detect false alarms also, the first part is similar to mentioned above, client's premise security device triggers, SMS sent, SMS received by GSM modem, process SMS, button 'flashing'. Secondly, if the alarm is false, it will be automatically 'resetted' or the client may 'reset' it, then a SMS will be sent to my modem, turning the button to 'flashing' green in color. when 'acknowledged' will display the client's info and the button will become normal.
The problem here i am facing is during the processing of the SMS, because the real and false alarms both will receive the 'clear' SMS when during some stages, but the functions are different and of course the 'checking' for both functions will be different too. The problem occurs at the checking process whereby the 'btn' variable is not detected.
'Try
'AT commands to receive SMS
serialPort.Write("AT+CMGL=""REC UNREAD""" & vbCrLf) 'set command message format to text mode(1)
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this is the linkbutton
<asp:LinkButton runat="server" ID="linkId" OnClick="doSomething(10)">ID
</asp:LinkButton>
and this is my sub
[code].....
I need to set a variable , say Flag=1 when a button is clicked.
How do i set the Flag=1 and this variable can be used in OTHER application? Meaning this Flag is set in Program A, then Program B will use this variable (always updated value). I wrote application in VB.NET.
I think app.config isn't that good (use the add key="" value "" ) because when program is executing, it will lock the app.config file.
This Flag variable will be changed according user input (button click) and i try to make this variable use across other application. How to do this?
I have the following radion button in VB.NET
<asp:RadioButtonList ID="rbedit" runat="server" RepeatDirection="horizontal" >
<asp:ListItem Value="1" >Yes</asp:ListItem>
<asp:ListItem Value="0" >No</asp:ListItem>
</asp:RadioButtonList></td>
I need to figure what button the user clicked on and then set a variable with that value.How would I go about doing this?
I want to have the browser to be directed to a certain url upon button click with the text inserted into the textbox place into the url. For example - [URL] No this isn't what I'm trying to do, but it gets the idea through.
View 1 RepliesIs it possible to detect when any button on a form is clicked and then store that buttons name in a variable?
My reason for wanting to do this is because i have over 700 buttons in my form and each one needs to do something different. I want to create one sub with if statements to respond to all button clicks.
refering to a different object (in this case, a button). If somebody could explain to me the method for refering to this,
Current
(nrbRand1 and 2 are the variables on the separate button; this should be a quick fix for you guys)
[Code]....
Ok, new to vb.net and I want to create a basic app that reads the contents of an xml file (this part works) and then enable (make visible) the required number of buttons (already created on the form but set as not visible by default) for each line of the xml file. The xml file just lists a program name (which would become the button text) and the path to the file (which should be stored as a variable that is used in the button code (handle?)The idea is that I have an app that once created, I just update the xml file with new drivers or programs that I want to install or run without having to rebuild the application.
Imports System.IO
Imports System.Xml
Imports System
[code].....
I need to get the x variable from textbox6 into the equation and by pushing button 1, the finish product goes into label2, which is lets say 15min and 45 seconds. I need 15:45 to countdown to 0, and form1 pops up.
View 6 RepliesWhen i press the button3, i want the webbrowser change site after how mutch the clock is. Is the clock between 9:00 and 17:30, the webbrowser is gonna change to swedish sites. If the clock is between 17:31 and 21:30, the webbrowser is gonna changes to american sites. But the webbrowser is only choose ONE swedish site and ONE american site. The problem is that the variable b does not save the value it has before.How to i make so the variable b saves the value it has before? b = b + 1 is gonna be first 1. Then if i press the button3 agin, it gonna be 2. and if the value is 3, it gonna be 1 agin.
PHP
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim changesSE(3) As String
Dim changesUS(3) As String
[code]....
Im making a site in Visual Studio using vb and I have a variable in page_load but need its value in the event handler of a button for passing on session.
View 5 RepliesI'm wondering whether it is possible to declare a global variable in a click event. I need to declare an array of a specific size. The specific size is generated using a series of IF statements. I only need to know how to declare it.
View 1 Repliesi tried to change back color of a label by command button by using a variable value
Private Sub Button3_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim colorof As String
colorof = "Color.Red"[code]....
but its giving error and is not working,
Label1.BackColor = Color.Red is working but I wanted to do this with variable value
I have 13 variables, all called Items1, Items2, Items3 and so on. I have a combo box with items in, each time I click a button I want it so whatever is selected is stored in a variable and if the button is selected again then it stores whatever is selected in the next variable. I know all the code for selecting items in a combo box and transferring it to a variable but the problem I cannot do is the part where each time a button is clicked it stores whatever is selected in the combo box to the next variable.
View 9 RepliesI am having 3 radio buttons and a button The codes should be added to the button_click event, when ever the radio button is selected and the button is click then, The codes should determine which button is selected and assign it to a variable. Create a two parallel 1-dim arrays and populate it with the data below:
[Code]...
Im hoping to create an auto clicker which had variable speed control, one button to start and pressing space to stop the application. When start is pressed i want it to click 2 or 3 different locations on my screen if this is posible with about a 1 second delay between each pointer move.i could really use some help with getting started or even better a link to an already created application for this.
View 6 RepliesI have a form that I am adding a set of buttons to. I am adding an event to those buttons. I need this event to function slightly to determine what button was pressed.
I need the button to simply set a string variable equal to the clicked buttons text so I can determine what button was pressed.
How can this be accomplished?
''Adding the buttons''
For Each dr In dtMenus
Dim strMenuName As String
strMenuName = dr.Item("strMenuName").ToString
[CODE]...
I am getting the error:"Range variable 'sender' hides a variable in an enclosing block or a range variable previously defined in the query expression."for this
Imports System.Data.SqlClient
Imports System.Linq
Public Class Form1
[code]....
I can select any other item from the table without the error. "sender" has the same properties as "receiver" in the SQL table.
I receive the error -
[Code]...
i declared a global variable button:
Dim button1 As New Button()
Now, i dont know how to add a click event in this button since it is a variable.
Is it possible to use a TextBox.Text variable as button text? I have a textbox with text that is entered by the application user, I want a buttons text to change depending on what the user enters in the textbox. Is this possible?
View 2 RepliesPublic Class Form1
Dim x, c, number(0 To 19) As Integer
Dim s As Integer
[CODE]...
The variables in the brackets [example] do not actually have brackets in them in the original code. These are where the issues are. For both variables, it says, "The type for variable [variable] will not be inferred because it is bound to a field in an enclosing scope. Either change the name of [variable], or use the fully qualified name (for example, 'Me.[variable]' or 'MyBase.[variable]')." Now, I'm not entirely sure if this is a stupid question or not, as I'm used to VB '98 because that's what we use in my programming class at High School. let me know why this won't work.
-Note: The intention of this program is to continually loop the generation of numbers for this list until I tell it to stop. Button1 ends the program, Button2 generates the list one time only, Button3 is supposed to loop the generation of the list, and Button4 is supposed to end the loop, but not the program.
Say that i have the following code that parse about 20k records from the DB.
Code #1
vb.net While reader.Read()
list.Add(If(Integer.TryParse(reader(0).ToString, 0), Integer.Parse(reader(0).ToString), 0))
End While
And then another code which does the very same thing but it seems to be a little cleaner.
Code #2
vb.net While reader.Read()
Dim storeowner As Integer = 0
Integer.TryParse(reader(0).ToString, storeowner)
list.Add(storeowner)
End While
This is what i am confused about; does the compiler creates a new variable automatically when i use the if statement without strictly declared variable? What approach is better in sense of performance?
I am looking for a good resource on variable naming conventions to illustrate variable type and where variables are declared. So I will have public variables, Private variables, private or local variables. I also may want to declare variables with the same name in different class code (i.e. in the code behind different forms). I am assuming good coding would dicatate a prefix for declaration location.
View 4 Repliesi have this error in the line of with xl.active......Object variable or With block variable not set.
Dim xl As Object
xl = CreateObject("Excel.Application")
With xl.ActiveSheet.QueryTables.Add(Connection:= _
"TEXT;C:Documents and SettingsUserDesktop429MEDICA2.TXT", _ Destination:=xl.Range("$A$1"))
[code]....
Now I have the need to get a current value from a bindingsource in a property of a user control.In a previous thread I had tracked down the "Object variable or With block variable not set" to the return in the Get block of a property. At the time I was only using the Set so I just commented out the offending code until I needed it.
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The error does not occur during a system compile, only upon saving the container object of the user control. As I said the Set works correctly, only the Get causes the error.I would like to know what I am missing/misunderstanding and am open to other suggestions of handling retrieving the current value of a bindingsource in a user control.
Using Visual Basic 2008 Express. I need to pass a variable to another form. Or else make the variable visible to both forms.
View 4 Replies