|
Hi everyone,
I'm working on a project consisting of writing an inventory management system for a small business. The system will be used by a multiple users concurrently.
I was thinking on using a client/server architecture and WCF came to mind. I have little experience with WCF and RESTful services so I'm a bit lost when it comes to applying WCF technologies in such a scenario.
Are there any guides, advice, sample scenarios which I could look at for ideas and to see how WCF can be used in such a scenario?
Huge thanks!
|
|
|
|
|
|
ndswdev wrote: inventory management system for a small business.
Presumably in that scenario they actually need a client/server architecture.
|
|
|
|
|
See my article Design a WCF Service[^] for a useful introduction to designing a WCF application.
"There are two ways of constructing a software design: One way is to make it so simple that there are obviously no deficiencies, and the other way is to make it so complicated that there are no obvious deficiencies. The first method is far more difficult." - C.A.R. Hoare
Home | LinkedIn | Google+ | Twitter
|
|
|
|
|
am working a result slip for a student and want each student results to be in a separate page..how do i go about? i have tried grouping by registration no but it doesnt work
|
|
|
|
|
|
Quote: In a code behind page under the Page_Load sub, I am trying to set some value to a Label:
Private Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
myLabel.Text = "Some text"
End Sub
I keep getting 'myLabel' is not declared. It may be inaccessible due to its protection level.
But I do have the following :
<asp:label id="myLabel" runat="server" text="text" visible="true">
This control (along with other controls) is inside the following tag:
<asp:formview id="FormView1" runat="server" datasourceid="sqlDS_ProjectForm" defaultmode="Edit" width="900px">
.
.
I have tried something similar in a separate simple project, where I can display the required text in the label, as a result of the Page_Load
Partial Class _Default
Inherits System.Web.UI.Page
Hide Copy Code
Private Sub Form1_Load(ByVal sender As System.Object, ByVal _
e As System.EventArgs) Handles MyBase.Load
Label1.Text = "some text";
End Sub
End Class
UPDATE
So I have worked out that the behind the code page needed a FindControl method to find the actual Label control
Now I have to assign a value to it.
FINAL UPDATE (and solution)
After some research I managed to find what I was looking for, yes I am a noob, we all were at some time
Dim SpirosLabel As Label = DirectCast(FormView1.FindControl("myLabel"), Label)
SpirosLabel.Text = HttpContext.Current.User.Identity.Name
modified 1-Apr-15 22:27pm.
|
|
|
|
|
It is annoying but yes, FindControl is the way you have to do it because it lives inside another control. The reason being is that you could have another label outside your form view and also call it myLabel in which case you would have ambiguous controls.
Glad you were able to find the answer.
There are only 10 types of people in the world, those who understand binary and those who don't.
|
|
|
|
|
I downloaded and installed two Express your solutions:
1) Studio 2013 Express for Windows Desktop
2) Studio Express 2013 for the Web.
Having developed an application that works on a DataBase nature of medical and health, I thought
create a setup for a possible distribution to doctors my friends. Following the information
found on the Internet, I clicked on the Solution Explorer and My Project.
Of the two versions Express, only the one for Windows Desktop presents the "Publish".
I tried to create a setup using this version for Windows Desktop but I Setup
past to try one of my friends does NOT work. To run this setup the system, the
which was made the test, says that does not have the suitable framework. I tried
suggestions on the Internet saying to click on File -> New Project. From the window
proposal select Setup and Deployment Projects folder and then the project
installation. But this window with the folder Setup Projects NOT exist.
With Visual Basic Express 2013 for the Web, clicking on the Solution Explorer and My Project item
"Publish" does NOT exist.
Question: How can I create a setup that allows the installation of my application
on systems, not having the necessary Framework, need to install it with Setup
|
|
|
|
|
Member 11249327 wrote: To run this setup the system, the which was made the test, says that does not
have the suitable framework.
What framework did you target? Which Windows-version would the machine running?
I haven't built setups for quite some time, but I remember that InstallShield made it as easy as marking the framework as "required".
Bastard Programmer from Hell 
If you can't read my code, try converting it here[^]
|
|
|
|
|
I know that this question have already been posted but without answer.
I would like a tabcontrol with somes tabs on top and somes tabs on bottom.
Problem is that Alignment property is for tabcontrol, maybe the best solution will be to have Alignement property to tabpage controls?
how can i do that?
|
|
|
|
|
fabsyl wrote: I know that this question have already been posted but without answer.
Not possible using the native TabControl. You'd have to search for one that does support said scenario.
Frankly, I'd be confused. I can imagine a nested TabControl, where one has pages within a page - that way your proposed navigation would make sense - but you are talking about having a selection of the pages shown on top, and the rest at the bottom?
Bastard Programmer from Hell
If you can't read my code, try converting it here[^]
|
|
|
|
|
Yes, for presentation reasons, i want to show 10 tabs headers on top of my tabcontrol and 8 on bottom, bottom's tabs are same family (shortcuts).
|
|
|
|
|
In fact what i want is in the tabcontrol component of lidor systems IntegralUi but it's not free solution!
|
|
|
|
|
|
Use 2 TabControls; both the same size; one with Tabs aligned across top; the other with Tabs across the bottom.
At design time, try placing one over the other. The designer may balk, so you will have to align them in the form's constructor; e.g.
this.tabControl2.Top = this.tabControl1.Top + 20;
this.tabControl2.Left = this.tabControl1.Left;
Note the Tops are offset by the height of the Tabs.
In the Selected event of EACH TabControl, "send" the other Tabcontrol "to the back"; e.g.
private void tabControl2_Selected( object sender, TabControlEventArgs e ) {
this.tabControl1.SendToBack();
}
(You can get fancy and determine which TabControl is already in front and not bother with the SendToBack() if it does not need to be done; visually, it probably makes no difference).
|
|
|
|
|
HI,
Every Body
I want to ask that, what is Full Text Search in sql server with examples.
|
|
|
|
|
|
MSDN has a topic on those subjects. They've invested some time in it. I suggest you do the same 
Bastard Programmer from Hell
If you can't read my code, try converting it here[^]
|
|
|
|
|
As already mentioned, this is not the right group. However, please refer to https://msdn.microsoft.com/en-us/library/ms142571.aspx[^].
And you are asking questions that can be easily answered by a simple search in google.
There are only 10 types of people in the world, those who understand binary and those who don't.
|
|
|
|
|
HI,
Every Body
I want to ask, that when to create clustered index and
non clustered index on tables in sql server.
|
|
|
|
|
This is the wrong discussion group, it should be asked in the Database one. However, you can only have 1 clustered index per table because the clustered index determines how the records are physically stored on the drive.
There are only 10 types of people in the world, those who understand binary and those who don't.
|
|
|
|
|
and this is the error .. somebody please help me 
The device is not ready
See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.IO.IOException: The device is not ready.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.__Error.WinIODriveError(String driveName, Int32 errorCode)
at System.IO.DriveInfo.get_TotalSize()
at SYSINFO.Form1.TextBox11_TextChanged(Object sender, EventArgs e)
at System.EventHandler.Invoke(Object sender, EventArgs e)
at System.Windows.Forms.Form.OnLoad(EventArgs e)
at System.Windows.Forms.Form.OnCreateControl()
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl()
at System.Windows.Forms.Control.WmShowWindow(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at System.Windows.Forms.ContainerControl.WndProc(Message& m)
at System.Windows.Forms.Form.WmShowWindow(Message& m)
at System.Windows.Forms.Form.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
************** Loaded Assemblies **************
mscorlib
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.36323 built by: FX45W81RTMLDR
CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
----------------------------------------
SYSINFO
Assembly Version: 4.0.0.0
Win32 Version: 4.0.0.0
CodeBase: file:///H:/SYSINFO.exe
----------------------------------------
Microsoft.VisualBasic
Assembly Version: 10.0.0.0
Win32 Version: 12.0.53323.36323 built by: FX45W81RTMLDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Microsoft.VisualBasic/v4.0_10.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualBasic.dll
----------------------------------------
System
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.36323 built by: FX45W81RTMLDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Core
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.36323 built by: FX45W81RTMLDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
System.Windows.Forms
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.36323 built by: FX45W81RTMLDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System.Drawing
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.36323 built by: FX45W81RTMLDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System.Runtime.Remoting
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.36323 built by: FX45W81RTMLDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Runtime.Remoting/v4.0_4.0.0.0__b77a5c561934e089/System.Runtime.Remoting.dll
----------------------------------------
System.Configuration
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.36323 built by: FX45W81RTMLDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Xml
Assembly Version: 4.0.0.0
Win32 Version: 4.0.30319.36323 built by: FX45W81RTMLDR
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.
For example:
<configuration>
<system.windows.forms jitDebugging="true" />
</configuration>
When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.
|
|
|
|
|
Member 11558919 wrote: The device is not ready
Which device, and what is your code trying to do?
|
|
|
|
|
this is my code..
Imports System.Runtime.InteropServices
Imports Microsoft.VisualBasic
Imports System.Diagnostics
Imports System.Management
Imports System
Imports System.Data
Imports System.Data.SqlClient
Imports Microsoft.VisualBasic.Devices
Imports System.Net.NetworkInformation
Imports System.Net
Imports System.Text
Imports System.ComponentModel
Public Class Form1
Inherits System.Windows.Forms.Form
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Timer1.Start()
End Sub
<System.Diagnostics.DebuggerNonUserCode()> _
Private Sub me_load(ByVal disposing As Boolean)
Try
If disposing AndAlso components IsNot Nothing Then
components.Dispose()
End If
Finally
MyBase.Dispose(disposing)
End Try
End Sub
Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
ProgressBar1.Value = PerformanceCounter1.NextValue
ProgressBar2.Value = PerformanceCounter2.NextValue
Label3.Text = ProgressBar1.Value.ToString + "%"
Label4.Text = ProgressBar2.Value.ToString + "%"
End Sub
Private WithEvents MyProcess As Process
Private Delegate Sub AppendOutputTextDelegate(ByVal text As String)
Private Sub TextBox1_TextChanged(sender As Object, e As EventArgs) Handles MyBase.Load
TextBox1.Text = System.Environment.MachineName
End Sub
Private Sub TextBox2_TextChanged(sender As Object, e As EventArgs) Handles MyBase.Load
TextBox2.Text = System.Environment.UserName
End Sub
Private Sub TextBox3_TextChanged(sender As Object, e As EventArgs) Handles MyBase.Load
TextBox3.Text = My.Computer.Info.OSFullName
End Sub
Private Sub TextBox4_TextChanged(sender As Object, e As EventArgs) Handles MyBase.Load
TextBox4.Text = My.Computer.Info.OSPlatform
End Sub
Private Sub TextBox5_TextChanged(sender As Object, e As EventArgs) Handles MyBase.Load
TextBox5.Text = My.Computer.Info.OSVersion
End Sub
Private Sub TextBox6_TextChanged(sender As Object, e As EventArgs) Handles MyBase.Load
TextBox6.Text = My.Computer.Info.InstalledUICulture.ToString
End Sub
Private Sub TextBox7_TextChanged(sender As Object, e As EventArgs) Handles MyBase.Load
TextBox7.Text = System.Math.Round(My.Computer.Info.TotalPhysicalMemory / (1024 * 1024)).ToString
End Sub
Private Sub Label15_Click(sender As Object, e As EventArgs) Handles MyBase.Load
Timer2.Start()
End Sub
Private Sub Timer2_Tick(sender As Object, e As EventArgs) Handles Timer2.Tick
Label15.Text = TimeOfDay
End Sub
Private Sub TextBox13_TextChanged(sender As Object, e As EventArgs) Handles Timer1.Tick
TextBox13.Text = (" " & getBatteryStatus() + vbOKOnly)
End Sub
Public Function getBatteryStatus() As Integer
Dim obj As Object, obj2 As Object, stat As Integer
' Get Battery Status
' Return Value Meaning
'0 No battery
'1 The battery is discharging.
'2 The system has access to AC so no battery is being discharged. However, the battery is not necessarily charging.
'3 Fully Charged
'4 Low
'5 Critical
'6 Charging
'7 Charging and High
'8 Charging and Low
'9 Charging and Critical
'10 Undefined
'11 Partially Charged
stat = 0
obj = GetObject("winmgmts:").InstancesOf("Win32_Battery")
For Each obj2 In obj 'loop in objects
stat = obj2.BatteryStatus
Next
getBatteryStatus = stat
End Function
Private Sub TextBox9_TextChanged(sender As Object, e As EventArgs) Handles MyBase.Load
TextBox9.Text = My.Computer.FileSystem.GetDriveInfo("C:\").TotalSize \ 1000000000 & " GB"
End Sub
Private Sub TextBox10_TextChanged(sender As Object, e As EventArgs) Handles MyBase.Load
TextBox10.Text = My.Computer.FileSystem.GetDriveInfo("C:\").TotalFreeSpace \ 1000000000 & " GB"
End Sub
Private Sub TextBox11_TextChanged(sender As Object, e As EventArgs) Handles MyBase.Load
TextBox11.Text = My.Computer.FileSystem.GetDriveInfo("D:\").TotalSize \ 1000000000 & " GB"
End Sub
Private Sub TextBox12_TextChanged(sender As Object, e As EventArgs) Handles MyBase.Load
TextBox12.Text = My.Computer.FileSystem.GetDriveInfo("D:\").TotalFreeSpace \ 1000000000 & " GB"
End Sub
Private Sub TextBox14_TextChanged(sender As Object, e As EventArgs) Handles MyBase.Load
TextBox14.Text = My.Computer.Registry.GetValue("HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0", "ProcessorNameString", Nothing)
End Sub
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Process.Start("https://www.facebook.com/Land.RoverF")
End Sub
Private Sub CheckForUpdates()
Dim request As System.Net.HttpWebRequest = System.Net.HttpWebRequest.Create("https://dl.dropbox.com/s/02c0p66bqihq79z/version.txt.txt?dl=0")
Dim response As System.Net.HttpWebResponse = request.GetResponse()
Dim sr As System.IO.StreamReader = New System.IO.StreamReader(response.GetResponseStream())
Dim newestversion As String = sr.ReadToEnd()
Dim currentversion As String = Application.ProductVersion
If newestversion > currentversion Then
MsgBox("There is a new update..")
System.Diagnostics.Process.Start("https://www.dropbox.com/s/mbshbyd582zrcuc/SYSINFO%20V.2.0.exe?dl=0")
Else
MsgBox("Update is the latest..")
End If
End Sub
Private Sub button3_click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim proc = Process.GetProcessesByName("explorer")
For i As Integer = 0 To proc.Count - 1
proc(i).Kill()
Next i
End Sub
Private Sub outputtextbox_text(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.AcceptButton = ExecuteButton
MyProcess = New Process
With MyProcess.StartInfo
.FileName = "CMD.EXE"
.UseShellExecute = False
.CreateNoWindow = True
.RedirectStandardInput = True
.RedirectStandardOutput = True
.RedirectStandardError = True
End With
MyProcess.Start()
MyProcess.BeginErrorReadLine()
MyProcess.BeginOutputReadLine()
AppendOutputText("Process Started at: " & MyProcess.StartTime.ToString)
End Sub
Private Sub MyProcess_ErrorDataReceived(ByVal sender As Object, ByVal e As System.Diagnostics.DataReceivedEventArgs) Handles MyProcess.ErrorDataReceived
AppendOutputText(vbCrLf & "Error: " & e.Data)
End Sub
Private Sub MyProcess_OutputDataReceived(ByVal sender As Object, ByVal e As System.Diagnostics.DataReceivedEventArgs) Handles MyProcess.OutputDataReceived
AppendOutputText(vbCrLf & e.Data)
End Sub
Private Sub ExecuteButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ExecuteButton.Click
MyProcess.StandardInput.WriteLine(InputTextbox.Text)
MyProcess.StandardInput.Flush()
InputTextbox.Text = ""
End Sub
Private Sub AppendOutputText(ByVal text As String)
If OutputTextbox.InvokeRequired Then
Dim myDelegate As New AppendOutputTextDelegate(AddressOf AppendOutputText)
Me.Invoke(myDelegate, text)
Else
OutputTextbox.AppendText(text)
End If
End Sub
Private Sub ExecuteButton_MouseHover(ByVal sender As Object, ByVal e As System.EventArgs) Handles ExecuteButton.MouseHover
End Sub
Private Sub Button4_Click(sender As Object, e As EventArgs) Handles Button4.Click
MyProcess.StandardInput.WriteLine("systeminfo", "/k systeminfo ")
MyProcess.StandardInput.Flush()
End Sub
Private Sub ABOUTToolStripMenuItem1_Click(sender As Object, e As EventArgs) Handles ABOUTToolStripMenuItem1.Click
MsgBox("This software still in BETA Version. All Right Reserved. rafizan46 Corporation. 2015.")
End Sub
Private Sub CHECKUPDATESToolStripMenuItem1_Click(sender As Object, e As EventArgs) Handles CHECKUPDATESToolStripMenuItem1.Click
CheckForUpdates()
End Sub
Private Sub SLEEPToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles SLEEPToolStripMenuItem.Click
Shell("shutdown -l")
End Sub
Private Sub RESTARTToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles RESTARTToolStripMenuItem.Click
Shell("shutdown -r")
End Sub
Private Sub SHUTDOWNToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles SHUTDOWNToolStripMenuItem.Click
Shell("shutdown -s")
End Sub
Private Sub AlertStringDownloaded(ByVal sender As Object, ByVal e As DownloadStringCompletedEventArgs)
' Did the request go as planned (no cancellation or error)?
If e.Cancelled = False AndAlso e.Error Is Nothing Then
' Do something with the result here
'e.Result
End If
End Sub
Dim WithEvents client As New WebClient
Private Sub DirectX9ToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DirectX9ToolStripMenuItem.Click
Try
client.DownloadFileAsync(New Uri("https://dl.dropboxusercontent.com/s/cn3q0u70ds57x4r/Direct%20X%2011%20Update.rar?dl=0"), "C:\Documents and Settings\All Users\Documents\Direct X 11 Update.RAR")
Catch ex As Exception
MsgBox("File already exists or is corrupted!")
End Try
End Sub
Private Sub client_DownloadFileCompleted(sender As Object, e As AsyncCompletedEventArgs) Handles client.DownloadFileCompleted
MsgBox("Download Complete!", MsgBoxStyle.Information)
Label48.Visible = False
Label49.Visible = False
ProgressBar3.Visible = False
Label48.Text = "0 &"
Label49.Text = "0 / 0"
ProgressBar3.Value = 0
End Sub
Private Sub client_DownloadProgressChanged(sender As Object, e As DownloadProgressChangedEventArgs) Handles client.DownloadProgressChanged
Label48.Visible = True
Label49.Visible = True
ProgressBar3.Visible = True
Label48.Text = ProgressBar3.Value & "%"
Label49.Text = e.BytesReceived & " / " & e.TotalBytesToReceive
ProgressBar3.Value = e.ProgressPercentage
End Sub
Private Sub GeForceExperienceV2000ToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles GeForceExperienceV2000ToolStripMenuItem.Click
Try
client.DownloadFileAsync(New Uri("https://dl.dropboxusercontent.com/s/apd4kq76v1xqpwi/GeForce_Experience_v2.2.2.0.exe?dl=0"), "C:\Documents and Settings\All Users\Documents\GeForce_Experience_v2.2.2.0.exe")
Catch ex As Exception
MsgBox("File already exists or is corrupted!")
End Try
End Sub
Private Sub ABOUTTHISPARTToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles ABOUTTHISPARTToolStripMenuItem.Click
MsgBox("This 'Software' section require internet connection to work.")
MsgBox("This part still in BETA.")
MsgBox("All downloaded file will be placed on directory C:\All Users\Documents\")
MsgBox("For every completed download, a message box will appear that tell you download has completed.")
End Sub
End Class
|
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
