need help with my project work

[princessfi]

Hi,
I'm new to visual basic. I have a problem. i connected the database to the form and i added the code below to prompt if there is any blank textbox. When nothing is entered into the textbox and when the first box is left blank, there should be a prompt that says please enter rented videos. However that does not appear and instead there is an error. "Me.Rented_VideosBindingSource.EndEdit()" is highlighted and a message box appears saying NoNullAllowedException. Please help me. Thanks alot in advance! Smile Smile

This is the program.

Public Class RentedVideos
 
Private Sub Rented_VideosBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Rented_VideosBindingNavigatorSaveItem.Click
Me.Validate()
Me.Rented_VideosBindingSource.EndEdit()
Me.TableAdapterManager.UpdateAll(Me.Digital_Video_DatabaseDataSet1)
 
If Rented_VideosTextBox.Text = "" Then
MessageBox.Show("Please enter rented videos.")
ElseIf (Videos_IDTextBox.Text = "") Then
MessageBox.Show("Please enter videos ID.")
ElseIf (PriceTextBox.Text = "") Then
MessageBox.Show("Please enter Price.")
ElseIf (Customers_NameTextBox.Text = "") Then
MessageBox.Show("Please enter customers name.")
ElseIf (Customers_ContactTextBox.Text = "") Then
MessageBox.Show("Please enter Customers Contact.")
Else
Dim RentedVideos As New RentedVideos
Rented_VideosTextBox.Text = ""
Videos_IDTextBox.Text = ""
Customers_NameTextBox.Text = ""
MessageBox.Show("Customer Database successfully added.")
End If
 
End Sub
 
Private Sub RentedVideos_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'TODO: This line of code loads data into the 'Digital_Video_DatabaseDataSet.Videos_Titles' table. You can move, or remove it, as needed.
Me.Videos_TitlesTableAdapter.Fill(Me.Digital_Video_DatabaseDataSet.Videos_Titles)
'TODO: This line of code loads data into the 'Digital_Video_DatabaseDataSet1.Rented_Videos' table. You can move, or remove it, as needed.
 
Me.Rented_VideosTableAdapter.Fill(Me.Digital_Video_DatabaseDataSet1.Rented_Videos)
 
End Sub
 

[Daxthecon]

First I got to get this in before you get yelled at by the moderators to use the [code] Tag on your code so we can help you better. Secondly we can't do stuff for you but your problem is within the scope so please phrase it better. There now you shouldn't get moderator'd. Now as per your problem give me some time and I'll edit this post or Plater or Alias will help you first.

[princessfi]

hi,
i'm really quite new to this and i'm not sure how to edit the question which i have currently posted. I'm so sorry that i didn't add the code Tag. I am really new at this and I know this isn't an excuse but i'm sorry if i didn't ask the question right. I tried many ways to solve the problem but i'm still unable to find out what is causing it. It was also very difficult for me to explain the situation as I've just been using Visual Basic for a month.

Hi,
I'm new to visual basic. I have a problem. i connected the database to the form and i added the code below to prompt if there is any blank textbox. When nothing is entered into the textbox and when the first box is left blank, there should be a prompt that says please enter rented videos. However that does not appear and instead there is an error. "Me.Rented_VideosBindingSource.EndEdit()" is highlighted and a message box appears saying NoNullAllowedException. Please help me. Thanks alot in advance! Smile Smile

[Curtis Rutland]

Welcome to Bytes!

We appreciate it if you read the Posting Guidelines. This can also be found by clicking the help link near the search at the top of the page. Specifically, we like you to put [code] tags around your code so that it is formatted properly and is easier to read. And as you know, if it is easier to read and understand, it will be easier for the Experts to help you out. Basically, what you can do is paste your code in, highlight it, and click the # button on the text editor.

I edited both of your posts to correct this, and I removed the code from your second post, seeing as it was the same as in the first.

Once again, welcome to Bytes! Enjoy your stay here.

MODERATOR

[princessfi]

Thanks for adding the tags