Hi, I'm brand new to WCF and have followed the MSDN sample of how to load a datagridview with data in a Tier'ed architecture using a WCF service.
The walk through is missing the "how to update your database" though so I set out on my own to try and figure it out. Read allot an failed alot.
I am building winform app that I want in a tier architecture so therefore using the WCF. Beyond that I get confused.
Here's what I think should work but doesn't. I get a error "(413) Request Entity Too Large" I have read about increasing the Maxmessage size, which I did increase to 200000000.
The following is in my Presentation Layer and the Load event does work, my datagridview does show my data.
next is code in my IService1 file
And finally the code in Service1.vb
So I think the only relevant information is in the last method of Service1.vb.
So does anyone know what could be going wrong. I have a suspicion that WCF cannot handle passing a dataset but I'm brand new to this so obviously I could be very wrong.
Thanks for any help in advance.
The walk through is missing the "how to update your database" though so I set out on my own to try and figure it out. Read allot an failed alot.
I am building winform app that I want in a tier architecture so therefore using the WCF. Beyond that I get confused.
Here's what I think should work but doesn't. I get a error "(413) Request Entity Too Large" I have read about increasing the Maxmessage size, which I did increase to 200000000.
The following is in my Presentation Layer and the Load event does work, my datagridview does show my data.
Code:
Public Class Form1
Dim svchost As New ServiceReference1.Service1Client
Dim OneData As DataEntity_Tier.OneDataDataSet
Private Sub Button1_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Try
Me.Validate()
Me.IDStaffBindingSource.EndEdit()
svchost.UpdateStaffTable(OneData)
Catch ex As Exception
End Try
End Sub
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
OneDataDataSet.IDStaff.Merge(svchost.GetStaff)
End Sub
End ClassCode:
' NOTE: You can use the "Rename" command on the context menu to change the interface name "IService1" in both code and config file together.
<ServiceContract()>
Public Interface IService1
<OperationContract()>
Function GetData(ByVal value As Integer) As String
<OperationContract()>
Function GetDataUsingDataContract(ByVal composite As CompositeType) As CompositeType
' TODO: Add your service operations here
<OperationContract()>
Function GetStaff() As DataEntity_Tier.OneDataDataSet.IDStaffDataTable
<OperationContract()>
Sub UpdateStaffTable(ByVal ORds As DataEntity_Tier.OneDataDataSet)
End Interface
' Use a data contract as illustrated in the sample below to add composite types to service operations
<DataContract()>
Public Class CompositeType
<DataMember()>
Public Property BoolValue() As Boolean
<DataMember()>
Public Property StringValue() As String
End ClassCode:
' NOTE: You can use the "Rename" command on the context menu to change the class name "Service1" in both code and config file together.
Public Class Service1
Implements IService1
Public Function GetData(ByVal value As Integer) As String Implements IService1.GetData
Return String.Format("You entered: {0}", value)
End Function
Public Function GetDataUsingDataContract(ByVal composite As CompositeType) As CompositeType Implements IService1.GetDataUsingDataContract
If composite Is Nothing Then
Throw New ArgumentNullException("composite")
End If
If composite.BoolValue Then
composite.StringValue &= "Suffix"
End If
Return composite
End Function
Public Function GetStaff() As DataEntity_Tier.OneDataDataSet.IDStaffDataTable Implements IService1.GetStaff
Dim StaffTableAdapter As New DataAccess_Tier.OneDataDataSetTableAdapters.IDStaffTableAdapter
Return StaffTableAdapter.GetStaff()
End Function
Public Sub UpdateStaffTable(ByVal ORds As DataEntity_Tier.OneDataDataSet) Implements IService1.UpdateStaffTable
Dim ORdata As New DataEntity_Tier.OneDataDataSet
Dim da As DataAccess_Tier.OneDataDataSetTableAdapters.TableAdapterManager
da = New DataAccess_Tier.OneDataDataSetTableAdapters.TableAdapterManager
da.UpdateAll(ORds)
End Sub
End ClassSo does anyone know what could be going wrong. I have a suspicion that WCF cannot handle passing a dataset but I'm brand new to this so obviously I could be very wrong.
Thanks for any help in advance.