[英]delete data in datagridview from database
下面是我用來從我的數據庫中刪除datagridview中的數據的代碼,但是我遇到了一個錯誤:
Private Sub Button3_Click(sender As Object, e As EventArgs) Handles Button3.Click
Try
con.Open()
For i As Integer = Me.DataGridView1.SelectedRows.Count - 1 To 0 Step -1
CmdDelete = "DELETE rsdcpatienttbl WHERE TreatmentCount='" & Me.DataGridView1.SelectedRows(i).Cells(0).Value.ToString() & "'"
adapter = New MySqlDataAdapter(CmdDelete, con)
ds = New DataSet()
adapter.Fill(ds)
Me.DataGridView1.Rows.Remove(Me.DataGridView1.SelectedRows(i))
Next
load_table()
MessageBox.Show("Deleted Successfully.", "Informed", MessageBoxButtons.OK, MessageBoxIcon.Information)
Catch ex As Exception
MessageBox.Show(ex.ToString())
End Try
End Sub
如果您使用MySqlDataAdapter
執行操作,那么您不需要單獨打開連接,刪除con.Open()
以跳過您獲得的異常
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