Is it possible to append to a vb.net statement? Reason is I need to read data from a table in database A and update it to the same table in Database B. I have to do this multiple times and each time the database's might have a different amount of columns.
So far I have Read from Database A
strSQL = "select * from Users"
Database1da = New OleDb.OleDbDataAdapter(strSQL, Database1con)
Database1.Fill(Database1ds, "users")
[Code]...
See
Public Class Form1
Dim sql As String
Dim conn As New OleDb.OleDbConnection
Dim da As New OleDb.OleDbDataAdapter
[CODE]...
The problem, The INSERT statement works fine in the form load but not in the button click event?
I was convinced that If <expression> Then <statement [:statement]> Else [statements] in concrete form of If a = b Then SayHello() Else SayBye() End has sense. I read article on msdn on If-then-else, but I forgot why I was reading, so I concluded, that snippet above means this
If a = b Then HelloIsSaid : IsNotEnded Else ByeIsSaid : IsEnded But I have tested it now, and I see, that Else without statement is nothing more than decoration. It would be pretty good if it had function I described. Do you think its good request? Or do you know any circumstance where this Else has some function?
y friend and I are re-learning Visual Basic, and we are stumped on this bit of code.
For intAsterisks As Integer = 0 To intLine - 1
lblAsterisks.Text = lblAsterisks.Text + "*"
Next
I have the following SQL:
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I want to put it (the select count statement) in this LINQ statement so I can get the sales count in my linq statement: Dim TheLeads = (From L In DB.Leads Where L.IsDeleted = False Select L).ToList() Is this possible to do in LINQ?
add an if statement and an exit statement to my do loop that exits when my future value (FV) is greater than 1000, then to change the exit statement to a continue statement so my loop will continue even though my fv is greater then 1000, point is to get this to run even though my if statement doesnt do anything. problem something wrong in my code and an exception error (xception of type 'System.OverflowException' occurred in mscorlib.dll)
so can someone show me where or why I have an error is, what am I overthinking now! I could use a hint, OMG i could use a tutor for that matter
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A co-worker wants to convert the following IfThenElseIf statement into a Select Case statement.
Explain why this is not possible.
If temperature = 100 Then
X = 0
ElseIf population > 1000 Then
X = 1
ElseIf rate < .1 Then
X = -1
End If
I cant get this SQL statement to insert any of the values in the form to add to the database
sql
sql = "INSERT INTO prevresults (ExamDate, ExamTime, CorrectAnswers, PassPercentage) VALUES (date.now, time.now, rightanswers, percentage.text)"
[code]....
I have this code that writes text on an existing text file[code]...
I know it appends at the end of the file but how will you append at the beginning of the file? Is it possible?
This code changes text to Arial or Times New Roman
Private Sub Button3_Click( _
ByVal sender As System.Object, _
ByVal e As System.EventArgs) _
[code]....
When started my app connects to Access 07 DB and checks if Table has more than 1000 records.If so,it exports them to a CSV file and deletes them from the table.After some time,Table will again reach 1000+ record,and I will again need to export them.But,I do not want to create a new CSV file,but rather append to existing one.
View 2 Repliesi am using the below code to append to a xml file, it appends fine but i cannot work out how to wrap it in these elements <Contacts></Contacts> like this:
Quote:
<Contacts>
<Company>comapny</Company>[code].....
I need to append two pdf files. I have found a number of api's that do the trick nicely, but they are expensive. Does anyone have any suggestions for me? Free would be nice.I would like it to be an api, where I can program it into my vb.net program.
View 4 RepliesAs far as I can tell, if i want to append data to a RTF from a RTB, the only way is to load the RTF into a RTB, add the next text to the RTB, and then SaveFile the RTB which overwrites the original RTF.
View 7 RepliesWhat does Append mean? in this My.Computer.FileSystem.WriteAllText(Desktop, TextBox1.Text, False) I have it set to false at the moment but what does it mean?
View 2 RepliesI'm a newbie writing my first app. I need help with the following: I need to retrieve the logged in user which = GID, I then need to append it to a URL which will start our Help Desk chat client. I can retrieve the GID easy enough but can't figure out how to append it and pass it with the URL. I found a post which instructed to declare the url as a string also and concatenate it. The UserName would follow the ":" at the end of the Url.
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We use javascript to do this from the HelpDesk site, but I need to adapt it to work from my app.
Pretty new to VB.Net. Having a bit of trouble here with something I though should be simple.Keeping it simple. Let's say i have a Document table with "Name" that I want to search on (in reality there are several other tables, joins, etc ..). I need to be able to build the query where clause based on string values passed in.
Example - user may pass in "ABC" or "ABC DEF" or "ABC DEF GHI".The final query would be (syntax not correct i know)Select * from Documents Where Name Like %ABC% AND Name Like %DEF% AND Name like %GHI%
So, I though I could do something like this.
Dim query = From document In _context.Documents
<< loop based on number of strings passed in >>
query = query.Where( ... what goes here?? )
For some reason, being brain dead or something, I can't figure out how to make this work in VB.Net, or if I'm doing it correctly.
I am trying to append a table to database using ADOX in .NET (as you probably surmised from the topic title) I get the following error:
Create Database Failure: System.Runtime.InteropServices.COMException (0x80040E3D): Type is invalid.
It says the Type is Invalid on the line where I try to append the objTable to the Catalog
And here is the code I am using:
CODE:
I am new to Vb.net so I will need some handholding. I have been searching everywhere but can't find what I need.I'm creating an app that has two forms.Each form has two comboboxes.The comboboxes are populated via a list and the list is populated by reading a text file for each combobox.The second form is called from the main form to modify the entries in the comboboxes. When I select the displaymember in the combobox a value corresponding to that entry is displayed in the text box.Now here is what I need.
I need to be able to append new values to the list so when focus is returned to the main form the new value is present. I'm using a combobox and a textbox on the second form as the import.The combobox is used to either select a present value to be able to modify the value in the textbox, or is used to add a new list element.
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I am attempting to append information to a textbox in VB. My app allows the user to choose a variety of options and displays all the information in a single, read-only text box.
I would like to set it up so every time an event triggers something to be written in the text box, it gets appended instead of overwriting the text currently in the box.
The only constraint is that text should be appended as a new line, not directly after the last sentence.
I have text file to read. If i find a line "T001" then i must add specific text beside that line. With my code now it write the specific text at the end of the file not beside the line "T001" This is my code so far
Dim filename As String = strFileName
Dim tfLines() As String = System.IO.File.ReadAllLines(filename)
Dim objwriter As StreamWriter
objwriter = File.AppendText(filename)
[code]....
I want to write out to an xml document from a database which I can do but how do I append to it if it already exists?[code]
View 6 RepliesWith the MVC3 Razor synax, one may render a string like so
@ViewData("photo")
My problem is: How can I append a dot to the above code.The following will result in a "Public member 'jpg' on type 'String' not found.
@ViewData("photo").jpg
I've tried the following code but does not produce my intended result:
@ViewData("photo") .jpg
@ViewData("photo"):.jpg
@ViewData("photo") & ".jpg"
I'm making a simple utility for browsing an intra-net site using VB.net webbrowser and for reasons outside my control, everything requires a passcode to be accessed. So, for example,
Index.html
is blocked by the company server but
Index.html?pass=123456
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I have a Gridview that I want to filter. My gridview is in an update panel and my filter button is not. On button click i have the following
protected void bttnfilter_Click(object sender, ImageClickEventArgs e)
{
if (TextBox1.Text != "")
{
[Code].....
So i add to the select command but I'm getting an error. How should I go about this? I don't want to use dynamic sql.
Private Sub btnOk_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnOk.Click
Me.SaveData("testing")
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when the file is not exists it will create than append a text to it -> then it always error( The process cannot access the file 'C:UsersAdministratorDesktopW-LTSinDebugStudent.txt' because it is being used by another process.) so how can i do?
but if the exists i can append text, it works properly.
I have two rows as shown below
regn_no date name Adress
5001 15 may 2010 A xyz
5001 13 jan 2011 B ABC
[code].....
i am using this code for updating autocompletestringcolllection in vb while run time
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I have written a program that is 99% complete now, but it is one thing left.I need the program to append My.Settings.MyString to a txt file.I have tested with this y.Computer.FileSystem.WriteAllText("C:mytxt", my.settings.mystring,ue)But when it writes the string to the txt it writes it wrong!If i check whats in mystring by typing MsgBox(My.Settings.MyString) it shows the string perfectly in order (it's a multirow string), example:
View 4 RepliesDim filesave As System.IO.StreamWriter[code]...
The above code works fine, but the problem is it overwrites the Quiz0.txt file's text. I want it to append the (";" & TbxOutput.Text & ";" & answrstrng) thing to what is already written in the Quiz0.txt file so that I can use the button (which runs this code) multiple times to add to the Quiz0.txt file.