when the user search for the username and find it in the database it will be seen in the datagrid.. but my problem is when the reader does not found any data with the same username it will give a message that user is not find,,i use the command.executenonQuery and also the command.ExecuteScalar in my if statement.[code]
View 3 Replies
Private Sub btnUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUpdate.Click
Me.Personal1TableAdapter1.Update(Me.HRDataSet4)
Dim myConnection As OleDbConnection
Dim myCommand As OleDbCommand
[Code] .....
I am facing another error "An error occurred trying to load the page. Member not found. (Exception from HRESULT: 0x80020003 (DISP_E_MEMBERNOTFOUND) )" performing the following scenario:- Opened a sample VS 2010 WPF project that I receiveved from a co-worker (Project compiles, and run on his machine)I tried to open project properties (Project --> Properties)The project properties panel/window didn't open, all it had was an error symbol (red/white X) and the error message above(HRESULT: 0x80020003).I am unable to view niether the designer window nor the code window (no messages are reported) but the pane where the code/design shoud display is empty, all you can see is the background color.
View 1 RepliesI have created an application that reads the innerXml of the xml file and display the value in a text box , but sometimes the inner xml might be blank so the textbox is displaying nothing , what I need is to display the message "no data was found" , i did the below but still not working :
If txtDecree.Text =
""
Then
[Code].....
Why does my VB.Net Project disappear instead of giving an error message?This only started happening recently, but when debugging with Visual Studios instead of getting errors, the program just closes as though the stop button was pressed. This doesn't happen for all error types but it consistently happens if there is some sort of casting error. This is an overly simplified example, but the lines below would cause a program to vanish as soon as they run. Dim i As Integer i = "A" One other interesting part of this is that if that was in a try catch block the error would be caught instead of closing the program.I'm in an office setting so I've been able to test a number of configurations and have found that this problem only affects Windows XP PCs, but not Windows 7. And it consistently happens with Visual Studios 2010 Professional and Ultimate, Visual Studios 2008. Besides that we apparently we all need Windows 7.
View 1 RepliesI am studying Visual Basic How to Progra by Deitel on my own. I am a beginner. My last two programs I have received the error message: Sub Main() not found. I am certain that I typed it in underneat Module Comparison. The program will not run.
Could it be a naming problem? If so can I correct it without re-typing the entire program.
I am using 2008 Visual Basic Trial Edition. Would it be better to use 2010 Visual Studio Professional?
I'm getting error 'At least one recipient is required, but none were found.' when I tried running a VB script that calls a DLL to get details from database and send report to user. I tried to print the error number, source and description which is -2147220980, CDO.Message.1 and At least one recipient is required, but none were found.
View 2 RepliesMy.Computer.FileSystem.RenameFile("New FolderBlank.txt", "New FolderBlank1.txt")
Try
Catch ex As Exception
[code]....
I get this error message:Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.MissingMemberException: Public member 'Members' on type '_ComObject' not found.when I run the following code and I don't know why.
[Code]...
how to show error msg in literal if no record found in database according to the text entered in textbox1 and textbox2 else if show record in gridview if the text entered in textbox1 and textbox2 will be found in database ...
View 1 RepliesHere's the function I'm a bit mystified by(Little rusty bitwise operators)
void two_one(unsigned char *in,int in_len,unsigned char *out)
{
unsigned char tmpc;
int i;
[CODE]...
I marked the two places that I don't quite understand. How to convert those pieces to Vb.Net.
Update: So this is what I came up with, but it's not quite giving me back the right data...Anything look wrong here?
Public Function TwoOne(ByVal inp As String) As String
Dim temp As New StringBuilder()
Dim tempc As Char
[code].......
Trying to run the following code but am receiving an string to integer error. Basically, I am running a report through code and trying to retrieve a number from a line of code by removing the line description and spaces. Having problems trying to figure out how to do that.
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim strURL As String
[Code].....
I have a show button.The user will select a data from the dropdown list of the combo and on clicking the show button the corresponding data will be fetched from the database and will be shown in the corresponding fields.So I did this
Private Sub Show_Btn_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Show_Btn.Click
Using connection As New OleDbConnection("Provider=Microsoft.Jet.Oledb.4.0;Data Source=BankAccount.mdb")
connection.Open()
Dim command As New OleDbCommand("Select * from BankAccount", connection)
Dim reader As OleDbDataReader = command.ExecuteReader()
[Code]...
i can make a button appear in the DataGridView, but i want to be able to load a form when i click on the button, how do i do that? I cant double click on the button to load the code because it will only appear when i run the application
The following code is to display the button
objButtonColumn = New DataGridViewButtonColumn
objButtonColumn.HeaderText = "Edit"
objButtonColumn.Name = "EditColumn"
[Code].....
I've written a service in VB and a config app for the service which has a service start/stop button. In order to start and stop the service you need admin rights, under Windows 7 you right click on the exe and "run as administrator". This works ok, I've used the Visual Studio Installer to also create a desktop shortcut, but if you right click on the shortcut there is no way to run as administrator.
The question therefore is, how to run the shortcut as an admin user? Edit, if you hold shift down whilst right clicking you get the "Run as administrator" option, but you still can't change the advanced property to tick the box as its grayed out.
What does this mean? This just started I never had this error.
at System.Windows.Forms.ToolStripMenuItem.OnClick(EventArgs e)
at System.Windows.Forms.ToolStripItem.HandleClick(EventArgs e)
at System.Windows.Forms.ToolStripItem.HandleMouseUp(MouseEventArgs e)
[code]....
I try to define a connection to an ODBC source by giving the user access to "odbcad32.exe" via the shell function.
Here you can see my codesnippet. During runtime I get a "file not found" message, that is completely surprising to me. I had checked the existence of the application in the first place.
Dim RequestedApp
As String = "C:WindowsSystem32odbcad32.exe"
If Microsoft.VisualBasic.FileIO.FileSystem.FileExists(RequestedApp)
[Code]....
I'm trying to do the most simplest of things... open a text file. Not System.IO, just plain open a text file like you would double click it in widows.I have no problems executing other exe files with the Shell command but when I try:
Code:'...some code
If System.IO.File.Exists(FILE_NAME) = True Then Shell(FILE_NAME)
'some code...
I get "file not found"...
But if I do:
Code:'...some code
If System.IO.File.Exists(FILE_NAME) = True Then MsgBox("File Exists") Else MsgBox("File Does Not Exist") End If
'some code...
the message that pops up is "File Exists"!I also checked the FILE_NAME in a msgbox and the file path is correct.What could be wrong?
With no answers from Google and not finding the answers by searching, just curious as you were to go about simply giving a ListBox a horizontal scroller once it passes its visible border the same as the vertical does?
View 3 RepliesI have an ArgumentException was unhandled message: Cannot add or insert the item '1' in more than one place. You must first remove it from its current location or close it. Parameter name item. Note: Have 2 listboxes 4 textboxes double click listbox2 and it fills in the four texboxes (now it needs to put it back into listbox2 in the same place it came from but crashes. I marked the area and underlined where the error message was coming up. So double click a selection in listview2 (fills 4 textboxes) then double click textbox2 (should return text data back to listview2 in same spot) but crashes. See code below.
[Code]...
I have a form in where I work with some data readers. One of my readers only gets the information from the first row. When ever I try to get something from the second row onwards I get an error saying that "no data found in row". I am using "ExecuteReader" not "ExecuteScalar". I cannot understand why I get this behaviour. Here is the The reader that gets me this error is reader2.
Dim reader As OleDbDataReader
Dim reader1 As OleDbDataReader
Dim sql5 As String
Dim SQL As String
sql5 = "SELECT * FROM Services WHERE ServiceID = " & Me.ServiceIDTextBox1.Text & ""
[Code].....
IM making a form to hold information about Cars.I have the abbility to save the Cars to the file. THis does it perfectly..... well it saves the car to the file, It not saving it in a logical order but thats another problem.BUT, when i close the form and restart, the form doesn't seem to want to know that it exisits.
View 5 RepliesI recently upgraded to developing on a 64bit windows 7 system from 32 bit xp. I am using VS2010, same install from the old system.My apps have always targeted a x86 systems If I change this to target x64 on my new system the app can no longer connect to my database (Progress).
View 8 Repliesjust want to ask what would be the possible code if there are no records in database.. example when you click search.. then there! well.. here is my code
[code...]
Problem regarding in using Listview in vb.net. I can manipulate some flow like searching and selecting data coming in database (SQL) but my problem is that i need a message thtat will pop up that there is no particular data in the database where ever i find a data.
View 4 RepliesWe have an VB.net application that is being moved from one box to another. It runs great on the old box. The new box is configured the same as the old one but is on newer hardware. When I run the application on the new server it complains that the adobe toolkit that we use can not be found.
View 2 RepliesI have a problem connecting with mysql server 5.1. I tried several methods and been a lot of googling too but can't find the solutions yet. Here's the installed component btw[code]...
View 2 RepliesPrivate Sub setView()
With lvwLogs
.AllowColumnReorder = True
.FullRowSelect = True
.GridLines = True
[code]...
I am getting the same compile error for the forms with setview. I am thinking it concerns with listview. It highlights the public sub setview().
I'm trying to send some data onto a server. The data is an XML in form of string and and image encoded to base64.The problem is that the server says '404 Not Found', just as if I had an incorrect URL, but my URL is 100% correct. I can get data from the server using GET, but when I try to POST it doesn't work.I checked it in Fiddler and it first gets z 401 error (not logged in) and then the 404 error, which results in an exception.Can anybody please have a look at the below code and tell me if there is something I'm doing wrong?
vb
Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
[code].....
im making a program and it needs to load 95 files on form load.im trying to make it to if the file cant be found that it will give a error instead of a JIT debug thing. i triedadding
HTML
Catch ex As Exception
MsgBox("Error: " & ex.Message)
[code].....
