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我建立一個形式，我需要以編程方式設置綁定和數據集（因爲它是可變的，不同的文檔可以在它被加載）。我設法形式中的任何信息加載到DataGridView，同時裝入從DataGridView信息在一些文本框爲結構化編輯：數據保存到數據集已成立了以編程
但是我努力讓編輯的信息保存回數據庫。它甚至不會用任何東西更新DataGridView。下面是我目前使用的代碼：
Imports System.Data.SqlClient
Imports System.Data.OleDb
Module DataGridView_Setup
Public Sub Set_Datasource(mode As Integer)
Dim connString As String = My.Settings.Database_String
Dim myConnection As OleDbConnection = New OleDbConnection
myConnection.ConnectionString = connString
' create a data adapter
Dim da As OleDbDataAdapter = New OleDbDataAdapter("SELECT ID, [Name Of Person], [SAP Job Number], [Site Name], [Asset Description], [Spares Supplier], [Supplier Contact Name], [Supplier Contact Phone Number], [Supplier Contact Email], [Spares Description], [Part Number], [Quantity To Order], Cost, [Request Date], [Date Ordered], [Ordered By], [Invoice Received], [Invoice Paid], [Method Of Payment], [Date Item Received], [Additional Comments], [Quote Attatchment] FROM Spares", myConnection)
' create a new dataset
Dim ds As DataSet = New DataSet
' fill dataset
da.Fill(ds, "Spares")
Main.DataGridView1.DataSource = ds.Tables(0)
Main.DataGridView1.AllowUserToAddRows = False
'Set Site Listbox
Dim SiteString = My.Settings.SETTINGS_SiteNames
Dim SiteBox = Main.VIEW_Site.Items
SiteBox.Clear()
Do Until SiteString = ""
Dim ActiveSiteName = Left(SiteString, InStr(SiteString, "¦"))
ActiveSiteName = ActiveSiteName.Remove(ActiveSiteName.Length - 1)
With SiteBox
.Add(ActiveSiteName)
End With
SiteString = Replace(SiteString, ActiveSiteName + "¦", "")
Loop
'Set DataBindings
Main.VIEW_Ref.DataBindings.Clear()
Main.VIEW_Ref.DataBindings.Add(New Binding("Text", ds, "Spares.ID", False, DataSourceUpdateMode.OnPropertyChanged))
Main.VIEW_NameOfPerson.DataBindings.Clear()
Main.VIEW_NameOfPerson.DataBindings.Add(New Binding("Text", ds, "Spares.Name Of Person", False, DataSourceUpdateMode.OnPropertyChanged))
Main.VIEW_SAPJobNo.DataBindings.Clear()
Main.VIEW_SAPJobNo.DataBindings.Add(New Binding("Text", ds, "Spares.SAP Job Number", False, DataSourceUpdateMode.OnPropertyChanged))
Main.VIEW_Site.DataBindings.Clear()
Main.VIEW_Site.DataBindings.Add(New Binding("Text", ds, "Spares.Site Name", False, DataSourceUpdateMode.OnPropertyChanged))
Main.VIEW_AssetDesc.DataBindings.Clear()
Main.VIEW_AssetDesc.DataBindings.Add(New Binding("Text", ds, "Spares.Asset Description", False, DataSourceUpdateMode.OnPropertyChanged))
Main.VIEW_SparesSupplier.DataBindings.Clear()
Main.VIEW_SparesSupplier.DataBindings.Add(New Binding("Text", ds, "Spares.Spares Supplier", False, DataSourceUpdateMode.OnPropertyChanged))
Main.VIEW_SupplierContactName.DataBindings.Clear()
Main.VIEW_SupplierContactName.DataBindings.Add(New Binding("Text", ds, "Spares.Supplier Contact Name", False, DataSourceUpdateMode.OnPropertyChanged))
Main.VIEW_SupplierContactNumber.DataBindings.Clear()
Main.VIEW_SupplierContactNumber.DataBindings.Add(New Binding("Text", ds, "Spares.Supplier Contact Phone Number", False, DataSourceUpdateMode.OnPropertyChanged))
Main.VIEW_SupplierContactNumber.DataBindings.Clear()
Main.VIEW_SupplierContactNumber.DataBindings.Add(New Binding("Text", ds, "Spares.Supplier Contact Phone Number", False, DataSourceUpdateMode.OnPropertyChanged))
Main.VIEW_SupplierContactEmail.DataBindings.Clear()
Main.VIEW_SupplierContactEmail.DataBindings.Add(New Binding("Text", ds, "Spares.Supplier Contact Email", False, DataSourceUpdateMode.OnPropertyChanged))
Main.VIEW_SparesDesc.DataBindings.Clear()
Main.VIEW_SparesDesc.DataBindings.Add(New Binding("Text", ds, "Spares.Spares Description", False, DataSourceUpdateMode.OnPropertyChanged))
Main.VIEW_PartNumber.DataBindings.Clear()
Main.VIEW_PartNumber.DataBindings.Add(New Binding("Text", ds, "Spares.Part Number", False, DataSourceUpdateMode.OnPropertyChanged))
Main.VIEW_QuantityToOrder.DataBindings.Clear()
Main.VIEW_QuantityToOrder.DataBindings.Add(New Binding("Text", ds, "Spares.Quantity To Order", False, DataSourceUpdateMode.OnPropertyChanged))
Main.VIEW_CostEach.DataBindings.Clear()
Main.VIEW_CostEach.DataBindings.Add(New Binding("Text", ds, "Spares.Cost", False, DataSourceUpdateMode.OnPropertyChanged))
Main.VIEW_DateRequested.DataBindings.Clear()
Main.VIEW_DateRequested.DataBindings.Add(New Binding("Text", ds, "Spares.Request Date", False, DataSourceUpdateMode.OnPropertyChanged))
Main.VIEW_DateOrdered.DataBindings.Clear()
Main.VIEW_DateOrdered.DataBindings.Add(New Binding("Text", ds, "Spares.Date Ordered", False, DataSourceUpdateMode.OnPropertyChanged))
Main.VIEW_OrderedBy.DataBindings.Clear()
Main.VIEW_OrderedBy.DataBindings.Add(New Binding("Text", ds, "Spares.Ordered By", False, DataSourceUpdateMode.OnPropertyChanged))
Main.VIEW_InvoiceReceivedDate.DataBindings.Clear()
Main.VIEW_InvoiceReceivedDate.DataBindings.Add(New Binding("Text", ds, "Spares.Invoice Received", False, DataSourceUpdateMode.OnPropertyChanged))
Main.VIEW_InvoicePaidDate.DataBindings.Clear()
Main.VIEW_InvoicePaidDate.DataBindings.Add(New Binding("Text", ds, "Spares.Invoice Paid", False, DataSourceUpdateMode.OnPropertyChanged))
DataGridView_Setup.BindingUpdates()
End Sub
Public Sub BindingUpdates()
Dim curr As DataGridViewRow = Main.DataGridView1.CurrentRow
Main.VIEW_Ref.Text = curr.Cells("ID").Value
Main.VIEW_NameOfPerson.Text = curr.Cells("Name Of Person").Value
Main.VIEW_SAPJobNo.Text = curr.Cells("SAP Job Number").Value
Main.VIEW_Site.Text = curr.Cells("Site Name").Value
Main.VIEW_AssetDesc.Text = curr.Cells("Asset Description").Value
Main.VIEW_SparesSupplier.Text = curr.Cells("Spares Supplier").Value
Main.VIEW_SupplierContactName.Text = curr.Cells("Supplier Contact Name").Value
Main.VIEW_SupplierContactNumber.Text = curr.Cells("Supplier Contact Phone Number").Value
Main.VIEW_SupplierContactEmail.Text = curr.Cells("Supplier Contact Email").Value
Main.VIEW_SparesDesc.Text = curr.Cells("Spares Description").Value
Main.VIEW_PartNumber.Text = curr.Cells("Part Number").Value
Main.VIEW_QuantityToOrder.Text = curr.Cells("Quantity To Order").Value
Main.VIEW_CostEach.Text = "£" + CStr(curr.Cells("Cost").Value)
Main.VIEW_DateRequested.Text = curr.Cells("Request Date").Value
'Handle DBNULL From now on
If IsDBNull(curr.Cells("Date Ordered").Value) = True Then
With Main.VIEW_DateOrdered
.Text = "Not Ordered Yet"
.BackColor = Color.LightPink
End With
Else
With Main.VIEW_DateOrdered
.Text = curr.Cells("Date Ordered").Value
.BackColor = Color.White
End With
End If
If IsDBNull(curr.Cells("Ordered By").Value) = True Then
With Main.VIEW_OrderedBy
.Text = "Not Ordered Yet"
.BackColor = Color.LightPink
End With
Else
With Main.VIEW_OrderedBy
.Text = curr.Cells("Ordered By").Value
.BackColor = Color.White
End With
End If
If IsDBNull(curr.Cells("Invoice Received").Value) = True Then
With Main.VIEW_InvoiceReceivedDate
.Text = "No Invoice"
.BackColor = Color.LightPink
End With
Else
With Main.VIEW_InvoiceReceivedDate
.Text = curr.Cells("Invoice Received").Value
.BackColor = Color.White
End With
End If
If IsDBNull(curr.Cells("Invoice Paid").Value) = True Then
With Main.VIEW_InvoicePaidDate
.Text = "Not Paid"
.BackColor = Color.LightPink
End With
Else
With Main.VIEW_InvoicePaidDate
.Text = curr.Cells("Invoice Paid").Value
.BackColor = Color.White
End With
End If
End Sub
End Module
我已經設置DataSourceUpdateMode.OnPropertyChanged和假設，這意味着在文本框的改變，它將更新數據源（即數據庫）。我猜這不是這種情況，因爲它不起作用。
我真正喜歡的是能夠在一個數據行編輯多個領域（通過文本框），然後點擊「保存更改」按鈕更新數據庫。
感謝
更新1
我已經做了一些更多的研究，以下的一些意見和答案，並寫了這個代碼我Save按鈕：
Public Sub Save()
Dim myCon = New OleDbConnection(My.Settings.Database_String)
myCon.Open()
Dim sqr = "UPDATE [Spares] SET [Name Of Person] = '" & Main.VIEW_NameOfPerson.Text & "', [SAP Job Number] = '" & CInt(Main.VIEW_SAPJobNo.Text) & "', " & _
"[Site Name] = '" & Main.VIEW_Site.Text & "', [Asset Description] = '" & Main.VIEW_AssetDesc.Text & "', " & _
"[Spares Supplier] = '" & Main.VIEW_SparesSupplier.Text & "', [Supplier Contact Name] = '" & Main.VIEW_SupplierContactName.Text & "', " & _
"[Supplier Contact Phone Number] = '" & Main.VIEW_SupplierContactNumber.Text & "', " & _
"[Supplier Contact Email] = '" & Main.VIEW_SupplierContactEmail.Text & "', [Spares Description] = '" & Main.VIEW_SparesDesc.Text & "', " & _
"[Part Number] = '" & Main.VIEW_PartNumber.Text & "', [Quantity To Order] = '" & CInt(Main.VIEW_QuantityToOrder.Text) & "', " & _
"[Cost] = '" & CDbl(Main.VIEW_CostEach.Text) & "', [Request Date] = '" & CDate(Main.VIEW_DateRequested.Text) & "' WHERE [ID] = '" & CInt(Main.VIEW_Ref.Text) & "'"
Dim Command = New OleDbCommand(sqr, myCon)
Command.ExecuteNonQuery()
myCon.Close()
End Sub
當Command.ExecuteNonQuery線試圖執行我得到指出以下錯誤：
類型的未處理的異常「System.Data.OleDb.OleDbException」 出現在system.data.dll
其他信息：數據類型不匹配 條件表達式中。
NB：是在sqr生成的字符串是：
UPDATE [Spares] SET [Name Of Person] = 'Name', [SAP Job Number] = '2', [Site Name] = 'Site', [Asset Description] = 'Asset', [Spares Supplier] = 'Spares Supplier', [Supplier Contact Name] = 'Contact Name', [Supplier Contact Phone Number] = 'Contact Email', [Supplier Contact Email] = 'Contact Number', [Spares Description] = 'Spare Desc', [Part Number] = 'Part Number', [Quantity To Order] = '1', [Cost] = '1', [Request Date] = '12/02/02' WHERE [ID] = '5'"
我明明用假信息
我不能太遙遠，現在肯定！
檢查出來：http://stackoverflow.com/questions/22436866/how-to-check-if- any-changes-were-made-in-datagridview/22437191＃22437191 – equisde
不幸的是，關鍵部分是保存更改，而你的答案是「做些保存更改」。這就是我需要的位 – SilverShotBee
'Main.VIEW_Ref'究竟是什麼？看起來你可能有一個額外的球員參與。 – Plutonix