in hyper teriminal when i press "ctrl+L" is to clear terminal screen how to write the code in vb.net? Hyperterminal is connecting to serial comport.when i try this it work and return line on debug
serialport.writeline ("at+cmgl=1")
i try this but not work and it still show some lines on debug
serialport.writeline (vbcrtl +"L")
serialport.WriteLine("vbCrLf + l")
I have a group box with 4 radio buttons and another groupbox with 4 text boxes.how do i write a short code to clear all text boxes and radio buttons within each box.i have written code the long way, ie..[code]but i think there is and easier way but i cannot find the statement.
View 1 RepliesI'm developing a new program. I needed to use backspace. Where i press backspcape to clear all other controls.
View 1 Repliesthis is currently my code to clear my 5 textboxes
Private Sub Button2_Click(sender As System.Object, e As System.EventArgs) Handles Button2.Click
TextBox1.Clear()
TextBox2.Clear()
TextBox3.Clear()
TextBox4.Clear()
TextBox5.Clear()
End Sub
I have a timer that runs every time by itself, and for the code the runs in it I would like to have it clear the dataset before it does anything, the timer runs every 10 seconds, so I tried to do dataset.clear but it would crash if the dataset had no values
View 4 RepliesI am using Visual Basic under Visual Studio 2010 Professional and I selected .NET Framework 4 from the New Project Screen. The program will plot Strange Attractors and I need to set and/or clear pixels.I delcared the following
Declare
Function
SetPixel Lib
"gdi32"
[code]....
I can set pixels by using the following code, where intX and intY ade dimensioned as integer and &HFF00 is the Hexadecimal for red.
SetPixel(hDC, intX, intY, &HFF00)
After I finish plotting all the points I want to clear the screen back to all black or white or any predifined color. I was able to do this in earlier versions of Visual basic by using "CLS" but this is not available in the current version. how to clear the screen? Should I use one of the earlier versions (.NET Framework2.0, .NET Framework 3.0, etc, etc)?
way to clear textboxes in VB.Net and what is the difference between the two methods? I have also seen people be critical of folk using clear objects on their forms and i can see why but in this case, i am only learning.
txtbox1.Clear()
or
txtbox1.Text = ""
wan to ask about anyone know the code about how to clear all the data inside the data grid view without clear the binding source...
View 1 RepliesI had to "Enhance" the small tool tip, as when you press ctrl or alt it fades, so the screen shot only showed it lightly.
I Should mention it works, some of the time. I am Passing strings in this format:
CODE:
how do i call a routine when the user press CTRL+Z or ctrl+somthing?
View 10 RepliesI have a lot of strings on my frm and integers so how can rest the value of them to the original. With out going this. The Progress is a string. [code]
View 3 RepliesI am trying to find a code to clear all text boxes in a form. I am using VB8 Here is the code I found but I get an error telling me I need a comma between two arguments
Private Sub btnclearall_Click
Dim ctl As New Control
For Each ctl In Me.Controls
[code]....
Using MS Access 2003 I am trying to build a command button in a form which clears the contents of a table column (which are tick boxes) - the idea behind it is this - the database is a contacts database for a club. Every year there is a subscription to be paid, so I want a column to annotate those who have paid (using a tick box). At the end of the year this will be reset - hence the reason for trying to produce a command button that clears out the ticks. What I using is this ....Private Sub Command11_Click()Dim strSQL As StringstrSQL = "UPDATE TBL-Master SET TBL-Master.campaign = '';"DoCmd.RunSQL strSQLEnd Sub(TBL-Master is the table name, campaign is the column name)What I am getting is a runtime error - 3144 -
View 3 RepliesIn my winform program (in vb.net) I wrote:
Dim dt As New DataTable
'Get data from DB into dt
'...
[Code].....
But when I run the program, Clear() cleared both dt and dttemp! Why? Aren't dt and dttemp supposed to be two distinct instances of DataTable?
(I finally found a solution - dttemp = dt.Copy() instead of dttemp = dt. But I still can't see why Copy() was necessary in this case.
how to clear 5 TextBoxes with 1 line code not for every TextBox (TextBox.Text = ""). I tryed many methods, but not successfully.
View 11 RepliesI am using the StreamWriter to create a log file for my application. However I do not see a method on how to clear the file (make the file blank again). Also before I clear the file I want to rename it so that I can have multiple log files, a new one produced everytime the application runs.
[Code]...
I find it difficult to create my own code. Am creating a program that will be able to calculate the sum of two numbers and display the results on the screen, i manage to create a code of clear and close button but for calculate i cant.
View 3 Repliesadd a code to handle the TextChanged event of my Textboxes to clear the Result box.
Private Sub btnCalculate_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalculate.Click
txtResult.Text = txtRate.Text / 100 * txtAmount.Text * txtYears.Text
End Sub
[code]....
I am creating what could amount to quite a few temp files on a terminal server using the System.IO.Path.GetTempPath. My question is this. Can I trust Windows to clear that directory on a regular basis or do I need to clear it in code?
View 4 RepliesI want to know what is code can be write for clear all item in list box??..Here i attach my code for looping for.This looping will display are result in list box. For info i am using visual studio 2005.Public Class Form1
Private Sub btnLoop_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnOnWard.Click
Dim num As Integer
[code].....
I want a part of my web browser to navigate to the home page when the user performs the shortcut Ctrl-H. I'm not sure how to go about telling the program to detect the KeyUp (or would it be KeyDown?) from anywhere in the program (for example, not just in the Private Sub of a text box but rather for the entire form). Here's what I have so far:
Private Sub Form1_KeyUp(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyUp
If (Microsoft.VisualBasic.Asc(e.Control && e.KeyCode == Keys.H) Then
WebBrowser1.Navigate(My.Settings.HomeUrl)
End If
End Sub
I am making a program that shutsdown your pc if you press ctrl+s. I have tried looking at some keylogger codes and changing them slightly but i can't find anything that works. I need it to be minimized but still checking for ctrl+s.
View 6 Replieswrite a code on Microsift Visual Basic 2008 that uses Screen SDK 7.1 .dll and shows you text in coordinates 10,10 to 20,20.
View 2 RepliesWhy when I press Ctrl+Tab in a MultiLine TextBox,
it enters a tab character even if I set the AcceptsTab property to false?
I set the MultiLine property to true, and AcceptsTab property to false.
When i test a project i usually press Ctrl+Break to pause the execution to change a value here or there, but unfortunately VB opens a new tab titled "No Source Available" and it become difficult to back to the tab that i was working with specially when there are a lot of opening tabs.
Is there any option to stay on the current tab when pressing Ctrl+Break?
I have just installed VB.Net 2005 to do my Uni project at home.Why cant I find the Data Control in the the tool box and nothing when I press CTRL and T..I need to define the ado control name but having no luck as yet.
View 3 RepliesI have the following
[Code]...
I want to make it so it doesn't preform a button click if you press CTRL and Enter.
I need to write a code that reads off a value from a another system's screen and compares with fixed value in .net 2005. The code should read all 24 lines of data from the screen and match to see if it is equal to the fixed value. What I have so far is:
Code:
Dim ObjScreen(6) As Object
Private ObjOIA_Area(6) As Object
Private OIA_Area As Object
[code].....
However the code is not working. and get an error. How can you select all or read line by line to get your desired result....
I am using the following code to clear all the values of all my controls everytime I click save button....Is there a way to not to clear the value of a certain control inside one groupbox? I would like the radiobutton in one group box will not be cleared...or if it can't be done, how do i put back the selected radiobutton after i click save?[code]....
View 15 RepliesI have the aplication which requires name fields... and i wan tto clear these fields whenever i closed the application using close(X) button. i dont want to use 'clear' button.
View 3 Replies
