When filling controls on a form, I want to check the DB value of a Field, if it Yes one RB is set to checked, if it is No the other one is set. I know I have doen this before but can't remeber how or find a sample.
vb.net
If Not dsSearch.Tables(0).Rows(dbCursor).Item(12) Is DBNull.Value Then
If dsSearch.Tables(0).Rows(dbCursor).Item(12) Is "Yes" Then
Me.rbtActive.Checked = CBool(CheckState.Checked)
[code]....
I have 3 RadioButton on the form, and a button. in button click event i have the following line RadioButton1.Checked = False when the rb1 checked is set the false, none of the other two rb's are set to true.Which should happen by default (atleast i happens when i set the checked using mouse or keybd)
View 6 RepliesI have group of radio buttons, each group ranges from 5 - 27 radiobuttons. And if any radio button in a group is checked I store 1 in db else I store 0. Now I'm checking each radiobutton using if loop to see if they are checked and set database value. I'm also trying to use the code below. Is there a good/better approach to check if they are checked or not?
Current code:
'rname is radiobutton prefix for a given group
'cnt is number of radiobuttons in the group
Private Function RadioIsChecked(ByVal rname As String, ByVal cnt As Integer) As Integer[code]....
Note: I cannot use radio button list. I know this can be achieved easily using this but i want to get solution for radiobutton
How do I check a CheckBox/RadioButton in a webbrowser?
View 2 RepliesIm trying to check a "male" radiobutton. Heres my code, and the debugging error
[Code]...
I have distributed a simple VB 2005 application that generally runs just fine without any installation: the user just inserts the CD and it starts via autorun.inf. The rare problem the users have is if they do not have .Net Framework 2 installed. I want to catch this error in my application, and display an appropriate message. I also want to test this on my own computer (which of course has the Framework installed). So my questions are
1. Should I be using a try-catch-end try in the form load sub, or somewhere else? and
2. How can I test this on my own computer without un-installing the Framwork? If I can raise an error while debugging, what error number should I raise?
I want to check what are in the dataset, how?
?daLS.GetDataset.Tables.Item(0).Rows
16
Table contains 2 columns Tags10 and TU. Its values are:
NDX___________TUI48
JJI_________ NULL
CmdSelect.CommandText = "Select * From Tags Where Tags10='" & s_temp02 & "'" 'OK
ReaderSelect= CmdSelect.ExecuteReader() 'OK
[code]....
How to check this? If NULL there is nothing to do, if not NULL, we should put the value into s_temp03.
I need to check for a registry cubkey I know how to check for an empty value but not if the subkey is missing In particluar this key
[code]...
here is code that i have for checking an empty registry value for instance a registry value named run. So if the key RUN has no value it returns true on the checkbox. Im not sure how to modify this code to check for an entire subkey as there is other subkeys where the one above is contained.
[code]...
I am using VS 2005 Professional and writing a guitar tuner app with visual basic. I have a 6 wav files that play in button click events using the My.Computer.Audio.Play() method. I need to animate a picture box meter while a wav file is playing. I have searched in the library, but I can't find any relevant info for checking if a sound is playing for vb. Is there a way I can check to see if the wav file is playing?
View 6 RepliesI am working on my project as I am trying to create a boolean which I want to check the matched string using with the html tags whether if the strings is matched then display the messageboxes.
Here's the
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Try
'Address of URL
[code]....
What I am trying to do: I want to check the strings in the php page using with the htmltagsstrings and check if the strings is matched or not. If the strings is matched, display the messagebox that says "I am going to ban you", otherwise if it not matched then display the messagebox that says "Ok, let get some details".
I need to check to see what version of windows is running. How do I do this from VB .NET 2005? and how comprehensive can I get... can I also check for Vista and Windows 7?
View 9 RepliesI'm working on my listview to extract the strings from my php source. I want to check for each array in my listview when i finds the matches of html tags "<span id=""mystrings2"">Enabled", then tick for each checkbox in the listview when the matches are found.
[Code]...
i want to check if the computer is in sleep mode or not...Suppose my project is in normal state..I change the state to sleep mode,I want that now when the computer wakes from sleep mode,I want that my project is in minimized state..How to check dat?
I have searched on the google,But didnt find anything...
I am importing alot of data from a text file into an access database with the code below. (From a Comma delimited text file) The problem is that I do not want to import duplicate records. I have the "IDNr" column in my access database set to "not allow duplicates" and need my code to check if there is already a record in the database before trying to import the data. Otherwise it will just give me an error or not import the rest of the data. I could do to make sure that there are no duplicates for the IDNr column?
[Code]...
Is there any way that I can use to check the datatype of an object??What I want to check is like below (yes, below will not work. Its just a scratch logic).
example:If TypeOf(objPasser) = Integer Then
.....
ElseIf
[code]...
I am working on my project to connect to a site. As I have created a boolean to check in the mysql database whether if the username and password is true or false.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If Textbox1.Text = Nothing Then
[code].....
i need to send mail after taking screenshot. If i clicked the mail button first should check whether the file exist or not. Find the code below and tell me how to verify it.
Private Sub SendEmail_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SendEmail.Click
Dim objOutlook As Object
[Code].....
I have two list boxes and I need to compare them to check if they are the same. One will be populated with number I set and the other will be populated when the user clicks on certain buttons. But how would I go about comparing the numbers the user enters with the set numbers? For example if the first list was 3241 and the user enters 3241 how could I check that they were the same?
View 3 Replieshow to do an error check on WebServices i.e. to check if the site which has the webservices is not down and also if internet connection exists?
View 2 RepliesOn my form I have 4 Phone Number fields, at least one of them has to have a number entered for contact purposes. I am trying to check and see if at least one is. I declared a form variable;'declare a variable to see if at least 1 phone number has been entered Dim count As Integer = 0..In the text changed event I do this;[code]But when I add a breakpoint as soon as I run the app it says count is 1 on the first phonenumber. What is the error in my logic. Somehow I need to be able to tab through all 4 controls and if they are all empty then let the user know they need to enter at least 1 phone number.
View 2 RepliesI have a question. Is it possible to use VB to check wireless connection on a router? I was looking at my WIFI router and I am able to see my LAN connections and wireless clients. Then it hit me that if a router is able to do that can I write an application to do the same without entering the router administration. If possible the i would like to check the wireless connections and identify rougue connections or wireless clients not in my list of approval.( either hard coded or a xml file)
View 1 RepliesThe following code works to check if a file exist, but I need to also check if the file is open.How would I do that?
If System.IO.File.Exists(Application.StartupPath & "players.txt") = False Or System.IO.File.Exists(Application.StartupPath & "preferences.txt") = False Then
bla bla bla
End if
When the main program is doing it's routine, it is looking at, and using, data from the two files.So, when the user pauses the program by opening the control panel, one or both of the files may still be opened. When the control panel tries to open them, it causes an error.(I am guessing that to just tell it to close them will cause the same problem if they are already closed.)
I am using this code which I am checking with the form width size that if they are greater than 672, then do something....
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If Me.Size.Width >= 672 Then
MessageBox.Show("the form size is greater than 672")
Else
[code]...
When the width size is no greater than 672, the messagebox will display that it says "the form size is greater than 672" which it sound didn't looks right for me. What I am trying to do is to check the width size that if they are greater than 672 then display the messagebox that says "the form size is greater than 672", otherwise if the width size is no greater than 672 which is equal, then display the messagebox that says "the form size is no greater than 672".
To set the checked state of the child node to its parents node i used this code.
mycode
vb
Private Sub CustomerFields_AfterCheck(ByVal sender As Object, ByVal e As System.Windows.Forms.TreeViewEventArgs) Handles CustomerFields.AfterCheck
[code]....
I also found the following code on msdn. Whats the difference b/w the two. Both of them works
vb
Private Sub CheckAllChildNodes(treeNode As TreeNode, nodeChecked As Boolean)
Dim node As TreeNode
For Each node In treeNode.Nodes
[code]....
Is there a way in Win App to do a check whether internet is available before connecting to Webservices?
View 1 RepliesThere's an website which lists the manufacturer's of the items they deal with. Upon clicking on the manufacturer link we get the relevant list of items. There are around 60 manuf. and each manuf makes around 500 items.
The complete list of items of an particluar manufacturer is split in pages and displayed on the web page, one page at a time and also links to the next pages.
There are around 4 to 5 items newly added weekly for each manufacturer.
So what i wanted was , first the complete data must be stored in the database and displayed to the user , and later only the updates should be displayed to the user.
For this, what approch i thought is, opening each and every page of the website and then extracting the data form the site and storing in the database. Then again whenever user wants an update , again extacting the complete data from the website and comparing it with the old data and displaying the update.
How do I check the correct OS version (xp, windows 7 etc)? I have seen an example like:-
Imports System.Environment.OSVersion
But this does not exist. All I have under environment is specialfolder.
In my app, I use checkboxes to keep track of days selected that an employee wants to work. Right now I use the CheckBox_KeyDown event to use the enter key.. While testing the app, I found if the user clicks on the text of the checkbox using the mouse, though it doesn't show the click, it is counted as a click .
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How do I add a CheckBox Column to my DataGrid and set the Check box in a way that Depending on the value returned in my row, it is either Checked or not checked?
View 9 Replies