Wish To Prevent Update Of Blank Text Box
Mar 3, 2009
I've written a simple visual basic database program using an access 2000 database.If I enter a non-numeric character in a numeric field, the program will not allow me to update the database, or scroll to the next record etc.My question is how do i invoke the same reaction on a field containing text? If the field is left blank by the user, I don't want the record to be updated, or the user to scroll to the next record until some text is enteredPulling my hair out over this.
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Mar 17, 2011
I need to read an xml document from a database record into an XDocument object in order for it to be deserialized. So that the deserialization will work, I need to apply a specific namespace to each of the level 1 elements. So XML looks a bit like this:
[Code]...
How do I prevent the blank/empty namespace being added to each child element of the element to which the required namespace has been applied?
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May 6, 2009
In a VB App. I read an Access table and display it to the UserForm... I would like to prevent and skip Access database update "for the sake of application efficiency and speed" if user has not changed the data displayed on the userform... How can I do that?
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Jan 3, 2010
I'm trying to updatesome records, currently my table is blank apart from the user id which is correct. but i get the error below.
My UserSettings table is as follows
ID is a Integer
MonthID is a Integer
YearID is a Integer
UserName is a string
Balance is a Integer
PhotoAddress is a string
GameSpeed is a Integer
This is my code and below that is my error in my ErrorTXT box.
[CODE]...........................
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Mar 17, 2010
I have a button which is in update panel. When I click on button then it click event run two times. How can I prevent second time click event?
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Mar 18, 2012
I have
MyTeam.TabControl1.TabPages.Item(i).Text += myReader("FIRSTNAME") & ", " & myReader("LASTNAME") & vbNewLine
But this just changes the tab title. How do I add text to the blank form below it?
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Sep 18, 2010
I am a beginner using Visual Basic 2008. I have a problem and can't figure out the code for the following. I have a form that contains two text boxes into which the user types information. When the user clicks on one of the textboxes it becomes blank and it's contents are displayed in the other text box. I seem to be using the correct codes but can't get it to work right. Does anyone know the correct code for this?
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Mar 27, 2012
OK here is what it looks like when it saves
[Code]...
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Jan 12, 2011
first why do I have a extra blank line between 2 lines of text
I have a mainform from which I display a second form with a few comboxes
[Code]...
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Feb 28, 2012
I am running batch jobs on a job scheduler. One of the step is called 6 times so that we can execute the step parallely (to utilize the max server resource and to execuet the step in less than 2 hours rather 6hours). At the end of each instance it has to create a text file (6 instances = 6 text files) and the next job in the queue only runs when it could find all six files,
I am trying to create 6 dummy text files using vb.net.
1. to create a text file like file1.txt, when each instance of the step is completed running and it should exit the code after a file is create.
2. In this manner the code is executed 6 times and it must produce 6 files like file1.txt ....... file6.txt.
right know the maximum code i could write was ( and this is not correct)
Public
Function CopyFile1()
As
Integer
[Code].....
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Dec 28, 2010
How can I ignore a blank line in between the data in a text file using VB.NET? For example, I have a file with data like this
Line 1: 020220date20101231salesvalue52..
Line 2: 356465date20101231salesvalue52..
Line 3: Blank Line
Line 4: **strong text**
Line 5: 356465date20101231salesvalue52..
Line 6: 356465date20101231salesvalue52..
Line 7: Blank Line
Line 8: 356465date20101231salesvalue52..
Line 9: 356465date20101231salesvalue52..
continues...
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Jul 14, 2011
Recently I have noticed that my IntelliSense has stopped working correctly. The suggestions displayed No longer have any visible text, only just an icon (showing what type ofsuggestion). The only Text that does infact appear are numbers and special Characters( 1,2,#, (, )... etc.)I have already tried editing the font color, back/forground colorand size for the intellisense. Although nothing seems to work. I have also tried completely uninstalling VB.Net 2010 and reinstalling also repairing and still the problem remains.
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Feb 7, 2012
I am using Visual Studio 2008 Pro to create a web application in Visual Basic. This app takes the information filled in by a user and then sends it to various people. Some of these people get the email in HTML, the rest in plain text. However, whenever I use the code below to send the plain text email, when the email arrives in my Outlook 2010 Inbox it is completely blank. If I leave the code alone and change only .IsBodyHTML from False to True, it works (it sends the email formatted for HTML).[code]Also, if I create an entirely new web app, using only this code, it sends the email correctly as plain text.
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Nov 23, 2010
I have a comma deliminated text file which i am using to generate a multidimensional array using the following [code]...
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May 4, 2011
Basically I've got a list of items in a text file, but sometimes a blank line gets inadvertently put in there, and I need to be able to delete that line (or change that line to a set value, either is fine).
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Jun 10, 2011
remove blank lines from listbox?And remove specified text from listbox (text line that i can specify in form code(But if i specify to remove line something like [URL] it will remove the line [URL] but doesn't remove line [URL].
My code for adding items to listbox is:
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim PageElements As HtmlElementCollection = WebBrowser1.Document.GetElementsByTagName("img")
For Each CurElement As HtmlElement In PageElements
[code].....
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Oct 15, 2009
I'm using a Do Loop to do calculations and display them in a textbox. how I can remove the last blank line at the very end of the displayed values?
I know that it's caused byControlchars.Newline, but I need it to display the calculations line after line.[code...]
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Apr 9, 2012
When I load a page into the web-browser control I have a text box and a button to insert more html and various other, but when I do so it redirects to about:blank. How do I stop this from happening. I cannot find anything that would hint me to fixing this problem anywhere Also this is how I add text to the page:
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Oct 1, 2009
I have a text file that I'm reading into a listbox. I want to skip a line if it's blank. The following code works if I leave out the check for the line being blank. It puts the file in the listbox with no errors. However, when I include the If statement that checks for the line being blank, I get an ArgumentNullException in the Items.Add line when It gets to the end of the file.
'Read Multiline File
Dim FILE_NAME As String = "C: empliz-etsy.txt"
'
If System.IO.File.Exists(FILE_NAME) = True Then
[Code].....
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Dec 4, 2011
I have a notepad txt file that has two columns of data. Vb reads data having one blank space (this is in column one) but ignores any other data beyond two blank spaces. in addition to being able to read the second column, I want to store the data thats in the column 2 in a separate string.
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Apr 2, 2010
I am trying to pull sql data into a text file. The code works just fine, until some new data comes in from lazy employees and a couple fields (used for notes/comments) are now left blank. Originally I've never seen them blank so I didn't think anything of it.
col2 = myreader.GetString(1)
It will error if the field is ever null - I even tried using a case when:
case when note is null then '" & empty & "' else note end and set the variable emtpy = '', but vb still thinks that it's null and errors?
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Jan 29, 2010
I'm trying to use StreamWriter to write to a text file; it creates the file fine, but when I open it up, it's still empty. I marked the code below where the writing action takes place.
vb Public Sub BHorse_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BHorse.Click
Dim oMarketsReq As New BFExchange.GetAllMarketsReq
Dim oMarketsResp As BFExchange.GetAllMarketsResp
Dim BFWrite As System.IO.StreamWriter
BFWrite = IO.File.CreateText("C:Datamarket.txt")
With oMarketsReq
[Code]...
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Oct 2, 2009
I have this code for my update checker. It loads a blank text file on my server containg the current version. I have it set to naviagte to this url then searches the web browser for the current version. If it cannot find it then there is a newer version, and a button becomes visible which lunches a webpage that has the current version. I would like it to loop my Check_for_update code until the webbrowser1.statustext = "Done" Below is the code i have but it doesnt work for some reason. Private Sub Update_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]...
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Sep 11, 2011
what is code that prevent user to given number less than 8 in the text box. If the user give less then 8 number then message box box will appear which show Minimum Number is 8. Here is my code
Private Sub btnregister_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnregister.Click
If TELEPHONETextBox.Text.Trim.Length = 0 Then
MsgBox("Please Enter Phone Number", MsgBoxStyle.Question)
Me.TELEPHONETextBox.Focus()
[code].....
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Feb 23, 2011
I have read through some of the other posts and I think what I want to do is slightly different. I have a combo box in VB ExpEd2010 that I want to allow the user to only select from the drop down list. However, I want to be able to set the value in the combo box to something that is not in the list. So the drop down list will have values 1, 2, 3 but I want to be able to write to the same combo box a value of 2.4, 1.2, etc.
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Apr 19, 2012
I am trying to prevent the User from proceeding if a specific text box is empty. All of the following lines of code SEEM TO work:
If txtTitle.text = "" Then.....
If txtTitle.Text = Nothing Then.....
If txtTitle.text = Nothing Then.....
(followed by a message box advising of the need for input)
The problem is, if the User enters a space (either accidentally or intentionally) all three of the above recognize the space as a valid entry.
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Apr 7, 2011
All I would like to do is remove one character from the line of the text file that I am reading, which is the first character and also prevent the program from crashing if no text file is present.Here is the code. Can anyone notice where I am going wrong? I thought the "if" statement would cover the crash but it didn't. Clueless, but sort of have an idea on the character removal.
Private Sub RadioButton_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadioButton.CheckedChanged
Dim fileReader As System.IO.StreamReader
Dim lineRead As String
If RadioButton.Checked Then
[Code]...
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Sep 9, 2011
what is code i should use if i want to prevent user not to leave empty word in text box after user click save button.Oh ya, i am using visual studio 2005, databse sql 2005 .Here is my code
Private Sub btnregister_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnregister.Click
If MsgBox(" Are You Confirm", MsgBoxStyle.YesNo) = vbYes Then
[Code].....
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Aug 10, 2011
what is code i should use if i want to prevent user not to leave empty word in text box after user click save button. i am using visual studio 2005, database sql 2005.
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Jun 26, 2009
I'm using VS2008, vb.net, and windows forms. I've got a checkbox that I've set the text property (via the properties window) to "Primary Address" and I bind the checkbox to a column called PrimaryAddress. When I display the form, the text does not show beside the checkbox. It's blank. If I display a row where value of the PrimaryAddress column is "1", then the text shows "True" but the checkbox does not display a checkmark. How do I get "Primary Address" to display as the text and how do I get the checkmark to display?
Here's the code I use to bind the checkbox:
chkPrimaryAddress.DataBindings.Add("Text", dvPeopleAddresses, "PrimaryAddress")
Here's the code I use to clear the checkbox with when displaying a different row:
If TypeOf ctrl Is CheckBox Then
CType(ctrl, CheckBox).DataBindings.Clear()
CType(ctrl, CheckBox).CheckState = CheckState.Unchecked
End If
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