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- Users: Alexandrumbm
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Check for Duplicate in DataGridView
Hello to you all... I have a DataGridView1 that takes values from an MDB. I have a TextBox and a "Save" CommandButton to add new data to the database. How do i prevent duplicates entry to the DatagridView ?! Please help me!!!!!!- Alexandrumbm
- Thread
- Replies: 4
- Forum: Visual Basic (Classic)
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Combobox selected item and Label.Text
Hello again, I have this code an it's working perfect for loading data from my database but... I have some labels... and i want to populating them when i select an combobox item... with data from the selected row. How can i do this ?! --------------- Dim conn As New...- Alexandrumbm
- Thread
- Replies: 9
- Forum: Visual Basic (Classic)
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Conversion from type 'DBNull' to type 'String' is not valid.
Hello to you all, I have a problem reading from the database some values. If one of the value is empty i get this error message: Conversion from type 'DBNull' to type 'String' is not valid. How can i pass thru this problem ? Please give me a suggestion and how can i optimize this code...- Alexandrumbm
- Thread
- Replies: 1
- Forum: Visual Basic (Classic)
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DataGridview and TextBox - Values
Hello to all, This is my fors post in this forum and i am glad to see alot of people right here. 1. I am a very very newb programmer. 2. I am working to a project that have a DatagridView with an Access DataBase. This DataGridView has 3 columns that is populating thru a BindingSource. (This...- Alexandrumbm
- Thread
- Replies: 8
- Forum: Visual Basic (Classic)
