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me.close for close the form and form_name.show to show form
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Your login form should NOT be your startup form. You applications main form should be the startup, checking to see if a user is logged in, and if not, the main form should create and show a login form.
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Please try to use this code snippet
Sub Main()
Dim splash As New <<your-login-form-name>>
splash.Show()
Do Until isCompleted
System.Windows.Forms.Application.DoEvents()
Loop
splash.Close()
System.Windows.Forms.Application.DoEvents()
System.Windows.Forms.Application.Run(New <<your-main-form-name>>)
Catch ex As Exception
MessageBox.Show(ex.Message, "Sub Main:" + ex.Source, MessageBoxButtons.OK, MessageBoxIcon.Information)
'' Do proper exception handling stuff here
End Try
End Sub
And Insert following code in case of log in successful in <your-login-form>
isCompleted
Me.Close()
Now, Set Sub Main as your startup object in Project properties
Hope I answered your query
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I want to insert data from DateTimePicker to Access database but have error "Data type mismatch in criteria expression"
this is the code
Dim aCon As OleDbConnection
Dim aCmd As OleDbCommand
Dim strCon As String
strAcessFilePath = System.Windows.Forms.Application.StartupPath &; "\rabotnici.mdb"
'create connection with mdb file
strCon = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" & strAcessFilePath & ";User ID=Admin;Password="
aCon = New OleDbConnection(strCon)
aCon.Open()
strQuery = "insert into data_pr values(" + " '" + DateTimePicker1.Value + "'" + ")"
aCmd = New OleDbCommand(strQuery, aCon)
Dim da As New OleDbDataAdapter
da.SelectCommand = aCmd
aCmd.ExecuteNonQuery()
aCon.Close()
access database field format is Date/time
Can You help me thanks
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Instead of concatenating values to sql strings, use parameters. That way you will avoid conversion problems (among many other things such as sql injections etc). Have a look at: OleDbParameter Class[^]
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but this work when access field format is text
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Yes it does and also it can be done for dates and numbers.
Access accepts dates in format #mm/dd/yyyy#. So for example today would be #01/25/2009# (without quotes).
However, I hope that you don't take this shortcut since it's not the proper way to go. I already mentioned sql injections which is prevented by using parameters. To give a few more examples that would be problematic:
- numbers, what if decimal separator is comma (as it is for example in my case). When updating a column you would have for example UPDATE ... SET ColumnName = 49,6 ... This would lead to an error
- text, what if your text contains a quote, for example: UPDATE ... SET ColumnName = 'Guns 'n' Roses'. Error again
- dates, input date is in different format. For example I use 25.1.2009 (Finnish format) etc.
So what I'm trying to say is that it's few more lines of code, but the quality and robustness of your application will greatly improve when you use parameters.
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OK I try to use parameters thanks very much, but are you sure that work
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ivo75 wrote: are you sure that work
See for yourself, that's what they are for 
You could try something like this:
...
strQuery = "insert into data_pr values(?)"
aCmd = New OleDbCommand(strQuery, aCon)
aCmd.Parameters.AddWithValue("ColumName", DateTimePicker1.Value)
aCmd.ExecuteNonQuery()
...
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not work give me this error again "Data type mismatch in criteria expression"
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ivo75 wrote: "Data type mismatch in criteria expression"
This just means that the data type of the field in your database is not the same as the value that you are trying to write into it.
Did you try parametric method as suggested by Mika?
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Could you post the code you're currently having.
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Try this in your vb code:
CONVERT(DATETIME, '" &amp; Format(datetimepicker1.value, "MM/dd/yyyy") &amp; " 00:00:00', 102)
If this doesn't work change the code 102 to 101 or 103. It might be one of those codes that you need to use.
should do the trick
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Tahnk You very much everybody this is the code who work
strCon = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" & strAcessFilePath & ";User ID=Admin;Password="
aCon = New OleDbConnection(strCon)
aCon.Open()
strQuery = "insert into rabotnici values(?,?,?)"
param1 = New OleDbParameter("@rabotnik_name", OleDbType.VarWChar, 100)
param1.Value = ComboBox1.Text
param2 = New OleDbParameter("@obekt_name", OleDbType.VarWChar, 100)
param2.Value = ComboBox2.Text
param3 = New OleDbParameter("@data_rabota", OleDbType.Date)
param3.Value = DateTimePicker1.Value.ToShortDateString()
aCmd = New OleDbCommand(strQuery, aCon)
aCmd.Parameters.Add(param1)
aCmd.Parameters.Add(param2)
aCmd.Parameters.Add(param3)
aCmd.ExecuteNonQuery()
aCon.Close()
this is work with parameters, again thanks
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I have a stream of text on display in a multiline textbox. I would line to insert the following new line of text ("TODAY 007") in the line just below every occurences of "PRV*PE*ZZ*1041C0700X~". So the result should be:
PRV*PE*ZZ*1041C0700X~
TODAY 007
This should repeat to the end of the file.
How do I start to code this? Please if anyone has a code sample. Thanks
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Read the file line by line and if the current line matches your pattern, put a line break character and insert the required text.
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Here is the code I have so far, but when I invoke, nothing happens.
Dim sReader As New IO.StreamReader("C:\\File.txt")<br />
Dim CurrentLine As String = "TODAY 007"<br />
Dim DataLines As New System.Collections.Specialized.StringCollection<br />
<br />
Do While sReader.EndOfStream = False<br />
CurrentLine = sReader.ReadLine<br />
If CurrentLine.Contains("PRV*PE") = False Then<br />
DataLines.Add(CurrentLine)<br />
End If<br />
Loop<br />
sReader.Close()<br />
sReader = Nothing<br />
<br />
Dim sWriter As New IO.StreamWriter("C:\\File.txt")<br />
<br />
For Each CurrentLine In DataLines<br />
sWriter.WriteLine(CurrentLine)<br />
Next<br />
sWriter.Close()<br />
sWriter = Nothing
Any suggestions?
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IvanIT wrote: If CurrentLine.Contains("PRV*PE") = False Then
DataLines.Add(CurrentLine)
End If
So, what are you going to do if the contains method returns True? Right now, you're just dropping the line and not doing anything with it. You've completely dropped your string of "TODAY 007" and the logic doesn't come close to following your specified requirements. Shouldn't your code read something more like:
Do While Not sReader.EndOfStream
DataLines.Add(CurrentLine)
If CurrentLine.Contains("PRV*PE") Then
DataLines.Add("TODAY 007")
End If
Loop
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Dave, this is an excerpt of the code I used; the result is that the line is insert 1 time at the end of the text file rather than immediately after each occurence of my search string:
Private Sub btnTranslate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnTranslate.Click<br />
MessageBox.Show("you are about to translate file")<br />
<br />
'read the file to find data<br />
Dim sReader As New IO.StreamReader("C:\moviez_21.txt")<br />
Dim CurrentLine As String<br />
<br />
Dim DataLines As New System.Collections.Specialized.StringCollection<br />
<br />
CurrentLine = sReader.ReadLine<br />
If CurrentLine.StartsWith("PRV*PE*ZZ*") = True Then<br />
sReader.ReadToEnd()<br />
End If<br />
sReader.Close()<br />
<br />
'modifying the file<br />
Dim oError As System.IO.StreamWriter<br />
oError = New System.IO.StreamWriter("c:\moviez_21.txt", True)<br />
<br />
'text to be inserted in after PRV*PE*ZZ*<br />
oError.Write("REF*LU*") ' + file number<br />
oError.Close()<br />
End Sub
Where did I go wrong?
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This is nowhere near what you wrote before. And frankly, you didn't follow the logic you wrote, line by line, nor did you even look at the example I already gave you.
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Dave, you are correct that my logic and coding have changed. Trust me, I appreciate all the feedback that I have gotten from this forum. I keep tweaking the suggestions until I get something that works. At this point, the code above works, with the 2 exceptions. I now need to figure out a way to reference the text file dynamically. Secondly, I discovered that myString will have different ending characters from time to time. As I plow thru, I learn new stuff. Thanks
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Hi All,
I have developed an application in vb.net 2005/ Mssql express 2005.
It works very fine on my machine, but give me problem when i am trying to run it on my remote machine. I am using LAN (Cross over Cable). It gives me an error "Login failed for user 'MyServerName\Guest' when i am trying to run it on my remote machine.
My Connection String is like following.
Conn = New SqlConnection("Server=myserver\SQLEXPRESS,1028;Trusted_Connection=yes;database=mydatabase")
I have done following steps.
Sql Server 2005 Surface Area Configuration.
I have set Remote Connections
Local and Remote Connections.
Using Both TCP/IP and Named Pipes.
Apply Done.
Stop Service and again restart.
Sql Server Configuration Manager
Sql Server 2005 Network Configuration
Protocols for SqlExpress
Shared memory = Enabled
Named Pipes = Enabled
TCP/IP = Enabled
Via = Enabled
Sql Server 2005 Services
Sql Server (SqlExpress) Running.
Sql Server Browser Running.
Stop and again restart.
Ms Sql Server Management Studio SqlExpress.
Set Security to Sql Server and windows Authentication mode.
But still i am facing the same problem.
Kindly help me.
Thanks in advance.
rmshah
Developer
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Since you're using trusted connection, do you belong to a windows group that has access to that SQL Server and to that database or do you have that access granted to you personally? Now it seems that you're not granted the access so SQL Server uses Guest account which then again doesn't have access to the SQL Server instance.
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hey guys, im building a media player using the MCiWND class in VB 6.0. im using the SendMessageAsString function to send commands to the Mci device.
it runs fine and all that, but after a song is done playing, the status of my window does not change. it keeps playing even after the file is done.
i.e i cant find a way to read the status change of the Mci device. ive set the flags to Notify Mode change..
now my problem is, i dont know how to read the mode change that occurs after the song is done playing. can i treat the mode change as an event? or anything else i can do?
here's what ive coded so far.:
'Create a MciWND class
Call MCIWndRegisterClass
flags = WS_CHILD And MCIWNDF_NOTIFYMODE Or MCIWNDF_NOTIFYALL
szFileName = Playlist1.Text
hMCIWnd = CreateWindowExAsString(0&, "MCIWndClass", "ORCA", flags, _
10&, 10&, 0&, 0&, _
Me.hwnd, _
0&, _
App.hInstance, _
szFileName)
Call SendMessageAsString(hMCIWnd, MCIWNDM_SENDSTRING, flags, "play")
here's a screenshot of the problem:
http://img33.picoodle.com/img/img33/3/1/24/f_scrnshtm_5a52658.jpg[^]
as u can see, its pretty basic.. lots of stuff to add :P
suggestions and criticism are welcome.. 
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V.G wrote: suggestions and criticism are welcome
You're making work for yourself. VB6 is crap, and it's unsupported ( you should put VB6 in your subject line if you're using it, b/c hardly anyone does ). VB.NET has a media player control you just drop into a form and it works.
Christian Graus
Driven to the arms of OSX by Vista.
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