表'Orders_Header'中'InvoiceValue'列的值为DBNull。 [英] The value for column 'InvoiceValue' in table 'Orders_Header' is DBNull.
问题描述
好的，伙计们，我试图通过你们所有的步骤让你们了解我正在做的事情并感谢你的帮助。
我有一个按钮导入，当我点击它我从所有关节中获取数据并将其输入数据库，但我不希望成为一个盒子，数据库也没有介绍其他股票交易所介绍的内容。就像那样
Adapter.Insert（OrderCategory，_
SampleOrder，_
Requester，_
ProjectNumber，_
CostCenter，_
PersonInvoiced，_
SampleCategory，_
数量，_
无，_
描述，_
RecipientName，_
DesiredDelivery，_
AssemblyPlannedDate，_
Coordonator，_
ShippingMode，_
ShippingAddress ，_
紧急，_
BOM，_
危险，_
运输车，_
SerialComponents，_
PrototypeComponents，_
ReadyAssembly，_
状态）
好的，很完美，我的数据库中全部都有价值。
但是当我尝试填充所有值显示该错误的方框时。
好的，我有一个编辑表单，我尝试填充所有框和所有DopDownList，但哪里什么都没有（InvoiceValue ）我想没有任何价值用于编辑和更新与其他价值。
这是我的代码我填充框。
Dim RowID 作为 整数 = 没有
如果 GridView1.Rows.Count> 0 然后
如果 GridView1 .SelectedValue<> Nothing 然后
RowID = GridView1.SelectedValue
结束 如果
结束 如果
Dim MyAdapter As 新 MV_SamplesOrdersTableAdapters.Orders_HeaderTableAdapter
Dim DT 作为 MV_SamplesOrders.Orders_HeaderDataTable = MyAdapter.GetDataByID（RowID）
如果 DT.Rows.Count> ; 0 然后
BOX_SampleOrder1.Enabled = False
DDL_OrderCategory1.Text = DT（ 0 ）。OrderType
BOX_SampleOrder1.Text = DT（ 0 ）。DVMOrderNumber
BOX_Requester1.Text = DT（ 0 ）。请求者
BOX_ProjectNumber1.Text = DT （ 0 ）。ProjectNumber
BOX_PersonInvoiced1.Text = DT（ 0 ）。CostResponsable
DDL_SampleCategory1.Text = DT（ 0 ）。SampleOrderType
BOX_Quantity1.Text = DT（ 0 ）.TotalSamples
BOX_CostCenter1.Text = DT（ 0 ）。CostCenter
如果 DT（ 0 ）.InvoiceValue<> Nothing 然后
BOX_SampleInvoice.Text = DT（ 0 ）。InvoiceValue
结束 如果
BOX_Description1.Text = DT（ 0 ）。OrderDescription
BOX_RecipientName1.Text = DT（ 0 ).FinalCustomerAddress
BOX_DesiredDelivery1.Text = DT（ 0 ）。TargetDate
BOX_AssemblyPlannedDate1.Text = DT（ 0 ）。AssemblyPlannedDate
DDL_Coordonator1.Text = DT（ 0 ）。后勤负债
DDL_ShippingMode1.Text = DT（ 0 ）。ShippingMode
DDL_Transporter1.Items.Clear（）
DDL_Transporter1.Items.Add（DT（ 0 ）。ExpressShipment）
BOX_ShippingAddress1.Text = DT（ 0 ）。ShippingAddress
DBL_Urgent1.Text = DT（ 0 ）。紧急
RBL_Hazardous1.Text = DT（ 0 ）。HazardousMaterial
RBL_BOM1。 Text = DT（ 0 ）.HasBOM
RBL_SerialComponents1.Text = DT（ 0 ）。HasSerialComponents
RBL_PrototypeComponents1.Text = DT（ 0 ）。PrototypeComponents
RBL_ReadyAssembly1.Text = DT（ 0 ).ReadyForAssembly
DDL_Status1.Text = DT（ 0 ）。状态
结束 如果
这里显示我的错误，我有如果是一个问题。是<>没什么，但我的问题是没有任何东西填充那个盒子或跳这一步。谢谢
尝试
如果 DT（ 0 ）。InvoiceValue IsNot 没什么 然后
？
Ok,Guys i try to exmplane you all steps for you understand what i`m doing and thanks for help.
I have a button import and when I click on it I get the data from all knuckles and enter them in the database, but nothing I want to be a box and the database does not introduce anything other stock exchange introduces. Like that
Adapter.Insert(OrderCategory, _
SampleOrder, _
Requester, _
ProjectNumber, _
CostCenter, _
PersonInvoiced, _
SampleCategory, _
Quantity, _
Nothing, _
Description, _
RecipientName, _
DesiredDelivery, _
AssemblyPlannedDate, _
Coordonator, _
ShippingMode, _
ShippingAddress, _
Urgent, _
BOM, _
Hazardous, _
Transporter, _
SerialComponents, _
PrototypeComponents, _
ReadyAssembly, _
Status)
Ok, is perfect, i have all value in my database.
But when i try to fill al boxes with all value display that error.
Ok, i have a edit form where i try to fill all boxes and all DopDownList, but where is nothing (InvoiceValue) i want to put nothing in value for edit and update with another value.
Here is my code where i fill boxes.
Dim RowID As Integer = Nothing
If GridView1.Rows.Count > 0 Then
If GridView1.SelectedValue <> Nothing Then
RowID = GridView1.SelectedValue
End If
End If
Dim MyAdapter As New MV_SamplesOrdersTableAdapters.Orders_HeaderTableAdapter
Dim DT As MV_SamplesOrders.Orders_HeaderDataTable = MyAdapter.GetDataByID(RowID)
If DT.Rows.Count > 0 Then
BOX_SampleOrder1.Enabled = False
DDL_OrderCategory1.Text = DT(0).OrderType
BOX_SampleOrder1.Text = DT(0).DVMOrderNumber
BOX_Requester1.Text = DT(0).Requester
BOX_ProjectNumber1.Text = DT(0).ProjectNumber
BOX_PersonInvoiced1.Text = DT(0).CostResponsable
DDL_SampleCategory1.Text = DT(0).SampleOrderType
BOX_Quantity1.Text = DT(0).TotalSamples
BOX_CostCenter1.Text = DT(0).CostCenter
If DT(0).InvoiceValue <> Nothing Then
BOX_SampleInvoice.Text = DT(0).InvoiceValue
End If
BOX_Description1.Text = DT(0).OrderDescription
BOX_RecipientName1.Text = DT(0).FinalCustomerAddress
BOX_DesiredDelivery1.Text = DT(0).TargetDate
BOX_AssemblyPlannedDate1.Text = DT(0).AssemblyPlannedDate
DDL_Coordonator1.Text = DT(0).LogisticsResponsable
DDL_ShippingMode1.Text = DT(0).ShippingMode
DDL_Transporter1.Items.Clear()
DDL_Transporter1.Items.Add(DT(0).ExpressShipment)
BOX_ShippingAddress1.Text = DT(0).ShippingAddress
DBL_Urgent1.Text = DT(0).Urgent
RBL_Hazardous1.Text = DT(0).HazardousMaterial
RBL_BOM1.Text = DT(0).HasBOM
RBL_SerialComponents1.Text = DT(0).HasSerialComponents
RBL_PrototypeComponents1.Text = DT(0).PrototypeComponents
RBL_ReadyAssembly1.Text = DT(0).ReadyForAssembly
DDL_Status1.Text = DT(0).Status
End If
Here display my error, where i have "if" is a problem. Is <> Nothing, but my problem is to fill that box with nothing or jump this step. Thanks
Try
If DT(0).InvoiceValue IsNot Nothing Then
?
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