Private Function Gelobee() As DataSet
Dim connection As OleDb.OleDbConnection = New OleDbConnection
connection.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=CMP.accdb"
connection.Open()
Dim da As OleDb.OleDbDataAdapter = New OleDbDataAdapter("SELECT IDDesc FROM [ItemDesc] WHERE IDPartNo = '" & PartNoTxt.Text & "';", connection)
Dim ds As New DataSet
da.Fill(ds, "FilteredDesc")
connection.Dispose()
connection = Nothing
If ds.Tables.Count > 0 Then
If ds.Tables[0].Rows.Count > 0 Then
DescTxt.Text = ds.Tables(0).Rows(0).Item(0)
Else
DescTxt.Text = "No Description"
End If
End If
Return ds
End Function
嗨,我试图检查数据集是否有行。但它给了我错误在“ds.Tables [0] .Rows.Count> 0”。我的代码有问题吗?我试图搜索整个网络,但我似乎无法找到答案。VB.Net检查数据集是否有行或不
您会得到什么错误? – MusicLovingIndianGirl
它说“错误类型'System.Data.DataTableCollection'的值不能转换为'布尔'。” – user3148632
如果我明白标题正确..数据集没有行。它是一组“数据表”。 – Codemunkeee