I need to be able to have a loop which checks records in the database and if it matches up then do something. I need to check that zone = currentZone and if it does then to submit my update query.
View 7 RepliesI am trying to check a record in database before inerting a new record here is my code but problem is when i enter a names first alphabet it imediatly populate massage. i want to check it after entering whole name
Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
Try
Dim cnString As String = "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" &
[CODE]...
As you all know, If the dataBase requires a numerical value then an error will occur when the user tries to insert the incorrect data type. With the code below after the user types in a value beside an int value type then it will go into an Loop through more than what is needed. How can I apply the same logic but allow the program not to check the 60 rows (I set the row size to 60). I want to break out of it if there are blanks ONLY if a row is blank and not for a black cell, because if the user leaves one cell blank then it would loop through the 'for each' for how many rows that they is. Initially there are 60 rows.
MIS
For Each item As DataGridViewRow In dgvLaser.Rows
If IsNumeric(item.Cells(3)) Then
Exit For
Else
MessageBox.Show("Check Record Count. Numerical values only..!")
End If
Next
I am trying to check a record in database before inerting a new record here is my code but problem is when i enter a names first alphabet it imediatly populate massage i want to check it after entering whole name
Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
Try
[Code].....
I have this code that Deletes a record by its IP address inputted by the user. How do you check if that record is available? how do evaluate first that the IP address inputted is not in the database before deleting anything? in vb 6.0 I used to do this line[code]...
View 2 RepliesI have this code that Deletes a record by its IP address inputted by the user. How do you check if that record is available? how do evaluate first that the IP address inputted is not in the database before deleting anything? in vb 6.0 I used to do this line:
If rs.EOF And rs.BOF Then
but it doesn't work anymore in vb 2008
If TextBox1.Text = "" Then
MsgBox("Input IP Address", MsgBoxStyle.OkOnly, Title:="")
Else
[Code].....
If (Tech_TextBox.Text <> "9999") Then
If File.Exists(ExportFolder + "" + Tech_TextBox.Text + ".pdf") Then
txtRouted.Text = txtRouted.Text + vbLf + Tech_TextBox.Text
myFileName = (ExportFolder + "" + Tech_TextBox.Text + ".pdf")
If cbPDFPrint.Checked Then
Dim MyProcess As New Process
[Code]...
I have created an auto emailer to distribute our work routes for my colleagues. Problem is I made it easy for the management team to update the list. List is ordered by Tech Number, First name, Last name, Email address.
I have coded this in VB.NET 2008 using Database sources and drag-n-drop the table on the form. I let VB do most of the coding of the connection and text boxes. (IE If (Tech_TextBox.Text <> "9999") Then)What I would like to do, instead of using a bogus tech number as an exit. I need an 'IF Then" or 'DO UNTIL' after last record.
I have this code that Deletes a record by its IP address inputted by the user. How do you check if that record is available? how do evaluate first that the IP address inputted is not in the database before deleting anything? in vb 6.0 I used to do this line:If rs.EOF And rs.BF Thenbut it doesn't work anymore in vb 2008
Code:
If TextBox1.Text = "" Then
MsgBox("Input IP Address", MsgBoxStyle.OkOnly, Title:="")
[code]......
the next code is working but when I try to insert an existing record, it gives me an error and I want to add a msgbox to let people now that the username is already taken.Only the username cannot repeat on the database because it's the primary key.. the rest of the table rows can repeat.
Dim cn As New OleDbConnection
cn.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Users\Fabio\Desktop\Telemoveis\Telemoveis\Db_Tel.accdb"
[code].....
Was wondering how to make it so users can log into the program and this would be much easier since the program allready connects to a database to add a username and password table which i have,how can i get it so when i click a button the program will check with the username specified if its in the data base and check the password of the given username returning a yes value if its right and conuing or exiting if its wrong?
View 4 RepliesI need to check if a record exist in my sql server [code]...
I need to check if in "Br" exist a record for example "123098"
when a save button clicked, the username textbox is added to the database otherwise if the username already existed then a message appeared to tell user it is already taken.. sample code
View 1 RepliesFollowing code is used in a .NET 2.0 windows service to continuously monitor a the table in the Database.[code]Seelctjob method will connect to SQL server 2005 database and executes the following Select query to see if there is a record with a particular status code.[code]This Select Query is executed continuously. If there is a record Start method will process further.I want to avoid executing the query continuoulsy. I tried using Sleep method and timer control. Thread.Sleep method stops the execution for sometime.[code]What is the best way of connecting to DB and monitoring a table at regular intervals of time without having much performance impact? When to use thread.sleep and a timer control and what is the difference between them?
View 4 RepliesMy Database field :
ID Name Age
1 Sumit 23
2 Manish 25
3 John 22
i have two textboxes and 1 button and label1 in my asp.net webform ...when i enter Sumit in textbox1 and 23 in textbox2 then it validates the database to check whether then value entered in textbox1 is present in Name column of database and 23 is present in Age column of database....then it redirect to ~.Default2.aspx else shows error message in label ...
i am using vb, i have a aspx page which contain a textbox (txtStudentName) and a drop box (dropdownlistGroupName) and a save button
student table
StudentID StudentName GroupID
1 ABC 1
[code]....
I am attempting to loop through each record in dtlist and compare it to each record in dtsold get the distances and retrive the max value I get an error on the line:
[Code]...
I am using VS 2008 and MySQL. Which one of the following methods is efficient or a proper one to check if record exists or not before making an attempt to insert.
1. HasRows Property.
2. Select Where Exists
3. Select Count(*)
Or if there is any other appropriate method ( which i am not aware of ) available to do it in vb.net ?
How would i check to see if a file exits on a website before attempting to download it?Also in my code ive enclosed the instructions in Do loop and if the file doesnt exist i want to skip the code and loop to the next file.
View 6 RepliesI'm trying to add a new record to my database, below is the code i have but it doesnt seem to be working. I dont even get the message box saying new record added.
''BEGIN DATABASE CONNECTION
con.ConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source = W:Textvertisingdatabase.mdb"
[Code]....
Having problem in updating an existing record. An error occurs "Data Type Mismatch in Criteria Expression"
Private Sub ToolStripButton1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripButton1.Click
Dim myBuilder As OleDb.OleDbCommandBuilder = New OleDb.OleDbCommandBuilder(dataAdapter)
[code].....
[code]There's my code to add, was working, not sure if I accidently changed something but it doesn't work now
View 3 Replieswhat happens is i have a weekly salary table and once a week an administrator computes the salaries and it will be saved there, i want the delete code to delete the already saved record with the same Emp_ID as what i'm trying to save. my problem is i don't think the code i put deletes the record because it will still tell me that there is already an Emp_ID the same with what i'm trying to save..
so far this is my code..
Dim cnn As New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source = C:UsersFlorieDocumentsVisual Studio 2008ProjectsPayroll SystemPayroll Systemobjx86DebugPayroll_MaryRoseAn.accdb")
Dim cmd As New OleDbCommand
[Code].....
I have text box and button when i clik tht button it has to display all the data if it is relevent to the data else it has to say no data . my project is about track cd. name textbox that i want to search is txtTitle.
i want something like search forum in this website when u clik on search it will get the data same way i need the solution either it is from database or index service
I have a problem with my program, and it's really bad because I need to burn it to disk within 12 hours and I can't get it to work: If I create a record, add information to it and click on Next Record, the ID, Status and Notes boxes content will change but the rest of the controls contents are carried over to the next record and I don't know why or how. It was working perfectly but now it stopped and I never done anything.
View 8 RepliesI'm following the sops from msdn on how to create a database from scratch. I would now like to programmatically add a single record via a command button?
View 3 RepliesModule Code
Imports System.Data.OleDb
Module modConnections
Public myConn As New OleDbConnection
Public myCmd As New OleDbCommand
Public MyDr As OleDbDataReader
[Code]...
Module Code
Imports System.Data.OleDb
Module modConnections
Public myConn As New OleDbConnection
Public myCmd As New OleDbCommand
Public MyDr As OleDbDataReader
[code]....
For some reason my code is executing the INSERT query twice and putting duplicate records in my table. If I put a primary key on one of the fields I get a runtime error and it complains about the fact it can't add the record twice.
The part of the code that INSERTs is near the bottom, bolded and italicized. I put the entire IF statement of code incase my logic is wrong.
This is what's being executed when a user clicks a button
If listOfCompanies.Contains(cbx_Company.Text) Then
'If the list contains the company, UPDATE the record
If LaborChecked Then
[Code].....
I have records in a database. Each record has a Picture path in it eg. "C:\Pics\Image1.jpg". I would like to display a record from my database and also the picture for that record, in a .rdlc report in vb .net 2008. i have succeded in displaying the record but just can't get the picture to show. I am using an Imagebox in the report.
View 2 RepliesI have a access database with these columns. USER_ID,COUNT,TIMES
Let say the current record is this:
USER_ID,COUNT,TIMES
STEVE20,24,1.5
Now I want to updated the current count record and times, but before updating I want the old record to be added to the new record. What should be my query?