mihaigrg
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Posts posted by mihaigrg
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Salut,
Cineva care ma poate ajuta cu o solutie la problema de mai jos. Lucrez la o aplicatie in vb.net. Aduc datele dintr-o tabela intr-un datagrid, in care vreau sa editez diverse valori, din diverse celule, dupa care sa le salvez in aceeasi tabela.
Codul este cel de mai jos. Problema este ca-mi da eroare de mai jos...
"NullReferenceException occurrent
A first chance exception of type 'System.NullReferenceException' occurred in .... "
Private Sub btnsave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click
Try
connection.Open()
sBuilder = New SqlCommandBuilder(sAdapter)
btnLoad.Enabled = False
sAdapter.Update(sDataSet)
sDataSet = Nothing
btnModify.Enabled = True
btnLoad.Enabled = True
btnLoad.PerformClick()
MessageBox.Show("Information updated", "Update", MessageBoxButtons.OK, MessageBoxIcon.Information)
Catch ex As Exception
MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)
connection.Close()
End Try
End Subhttps://drive.google.com/file/d/1O4rM2UFTmwgFIObgbXakzwSyETrBMpx9/view?usp=sharing
Multumesc anticipat!
eroare vb.net
in Programare
Posted
Da.
Problema cred ca apare dincauza filtrelor. Afisarea in datagrid se face in urma unor filtre.
Daca afisez toate datele din tabele, modific si salvez... merge. Daca aplic filtrele si incerc, nu mai merge.