Find Where In WMI, The TCP/IP Port Filtering Is?

Sep 3, 2009

I am trying to find where in WMI, the TCP/IP port filtering is.

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Find A Way To Pass Port Forward?

Aug 16, 2010

I am not sure which method that I should use for my project. I would like to get bypass the port forward to avoid the 3rd party software such as packet sniffer to pick up the connection details.

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Find Out Port From Switch Of Computer

May 26, 2010

ok i got a hard question I have diferent computers, lets say 200 cps with all known mac address. i got 3 switches with 24 ports each. i want to know if i can be able to know the port No. and switch of a given computer given the mac address... some computer arent in the domain. how could i start puttin this into code

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Find Out What Port Of What Switch Its The Remote Computer

Jun 22, 2010

I have different computers, lets say 200 cps with all known mac address. i got 3 switches with 24 ports each. i want to know if i can be able to know the port No. and switch of a given computer given the mac address. some computer aren't in the domain. how could i start putting this into code.

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VS 2010 Auto Find Com Port Of GSM Modem

Jan 14, 2012

how to automatically find the correct com port of my GSM modem.i can retrieve the available ports of the computer by using My.computer.Ports.Serial PortNames.can i find the right port using the display name property of the device?

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VS 2008 Find Out What Port Of What Switch Its The Remote Computer?

May 25, 2010

ok i got a hard question I have diferent computers, lets say 200 cps with all known mac address.

i got 3 switches with 24 ports each. i want to know if i can be able to know the port No. and switch of a given computer given the mac address.some computer arent in the domain.

how could i start puttin this into code

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Read The Data From Barcode Weight Scales By Serial Port And TcpIp Port?

Nov 27, 2010

I'm mohammed from Oman ,I'm visual studio.net programmer How I can Read the Data From Barcode Weight scales By Serial port and TcpIp port

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Get FullName From Available Serial Port (Com Port) From Device Manager In Windows Form With .net?

Jul 25, 2011

I have a Windows form.in windows form have a combo box that give me a list of available port serial with it code (Dim ports As String() =SerialPort.GetPortNames())for example( Com1,Com8,Com15,...).but I want to give me fullname of serial port in device manager for example in dvice manager is these (Comunication Port(COM1) - Printer Port(LPT1) And USB Serial Port(COM8)).how to Get it?

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Detect The Address And Port Number Of The Parallel Port In Computer?

Jun 9, 2010

I would like to detect the Address and Port number of the Parallel Port in computer.

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The Given Port Name Does Not Start With COM/com Or Does Not Resolve To A Valid Serial Port?

Aug 2, 2011

If I uninstall the COM1 and reboot, it works. If I shut down (power off) and restart, I get the message below. If I uninstall then click on Scan for Hardware Changes,The given port name does not start with COM/com or does not resolve to a valid serial port. Parameter name:portName

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Communications :: .net MSComm Port USB 4 Port Relay?

Oct 20, 2011

I am trying to get my 4 port USB relay board to work in VB.net using the COM PORT. I found some code from a poster who has the 16 port USB relay version. When trying his code i can only get it to turn on relays 1-3 all at the same time. The product can be found here: USB 4 port relay

"01+//" - Relay 1 is switched ON
"01-//" - Relay 1 is switched OFF
"02+//" - Relay 2 is switched ON
"02-//" - Relay 2 is switched OFF

[code].....

So i am confused as to how to separate each relay out with that code above and just be able to turn on any number 1-4 relay on or off independently from each other!

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MSComm Port USB 4 Port Relay

Oct 20, 2011

I am trying to get my 4 port USB relay board to work in VB.net using the COM PORT. I found some code from a poster who has the 16 port USB relay version. When trying his code i can only get it to turn on relays 1-3 all at the same time. The product can be found here: USB 4 port relay I was following what the guy in the post was doing to turn his on:

[Code]...

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Communications :: Serial Port - Run Program, "Access To The Port 'COM1' Is Denied"?

Oct 15, 2008

Im having problem with the Serial Port. When i run my program, "Access to the port 'COM1' is denied". What does that mean? Im not sure whats happening because theres no error in my code. Someone suggest me to use 'COM2'. Which is also the same result. I have a microcontroller, programmed and run it. And i need to capture the data onto my vb, which is on a multiline textbox. How to i do that?Just to double check my code?

[code]...

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Reading Serial Port Read Data From Serial Port?

Aug 16, 2011

i am a absolute beginner and i want to use vb to receive data from micro controller through serial port using rs232 standards, i found this code to receive the data serially, can any one tell me where should i paste this code, so that the data received will be displayed in message box.Private Sub DataReceived(ByVal sender As System.Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) HandlesSerialPort1.DataReceived

[Code]...

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Serial Port Example Code - Connect To A Modem Thru The Serial Port

Oct 26, 2011

The link below has code to connect to a modem thru the serial port but it is for an earlier version of VB. when I convert the code, it does not fully convert and has 4 errors that prevent building the project. can someone tell me what needs to be changed or added?

[URL]

Note: the error: not CLS-Compliant

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Filtering Data More Than Once?

Dec 2, 2009

I created a query on a Access database, which I would like to show with the datagridview. So, I created a new table adapter with my query, which creates as well the datatable tbl1. Then, the wizard created the datagridview for me, showing the correct data. Now, I would like to filter these rows: I already read it is possible to do it by simply clicking "Add query...", but I would like to do it in a different way. I have some comboboxes, and I would like to use the strings inside them to filter my table tbl1. Is it possible to apply those queries one after the other on my datatable tbl1? I am able to filter only once with:

Me.tbl1TableAdapter.FillBySomething(Me.DataSet.tbl1, params...)

But, if I wanted to filter the result again?

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Filtering DGV From Combo Box?

Aug 29, 2011

I am having trouble filling my datagridview from a separate combobox selection.On my form, I have a datagridview that displays all the contents from my tab delimited text file (customers.txt). Also, on the same form I have a combo box that displays all the customers names.

Once a user selects a name, the datagridview should populate details about the selected customer. I figured out how to fill a multiline textbox; however,I want to fill a datagridview instead but am unsure how to go about doing so.Code for filling mutiline textbox with customers details

Private Sub ComboBox1_SelectedIndexChanged(sender As System.Object, e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged
Dim dr As DataRow = table.Rows(combobox1.SelectedIndex)[code]......

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Filtering The XML Content?

Oct 5, 2009

I have a structure representing a log, containing fields such as Order Number, Line Number, etc. Each time a test is done, this log structure is serialized and appended to an Xml file created on the day which the test was done. At present, i have 20 or so Xml files containing varying number of log structures which i would like to be able to filter through in a single search. My target at present is to be able to load all data against a specific order number, and also to perform a search and return distinct records, as there could be multiple Order Numbers in one or many files.So far, i've attempted to load all the data from all files into a large generic List(Of Log) and use LINQ to filter out the results. I've also tried loading all the data into a DataTable and filtering using the Select method. The last method i used was using the SelectNodes method from the XmlDocument class. All of these methods seemed to work but i was becoming stuck when filtering distinct records?

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How To Tackle Some Filtering

Nov 18, 2009

working on a little app which requires the user to select items from a listbox bound to a dataview, then adding selected items to a new table. In the new table calculations are done, and so far its all working pretty good. The problems comes in is that there are many values and types to filter and I am having some trouble with the search aspects. So far in my code I am going about the problem using the datatables in this manner:

to sum it up:

form loads initial data to table
displays it in a dataview bound to a listbox
dataview is filtered using rowfilter queries, controlled in various manner
dataview is converted to table, then selected row is imported to final table
Calculations done on final table values

So far its pretty damn fast and works well, however the searching needs refinement. To give you an idea here is *some* of the search criteria in one of my rowfilter calls.

color:
red
black

[code]....

Form is requested to be as so:

6 checkboxes, and 12 numericupdowns (spin) buttons I have a seperate method to enable/disable them dynamically.

Have a look at the select row query: its getting messy already.Although I am specifying max and min values it seems to only filter by the max value and color, so something is wrong here...but i think it is just syntax... but already its getting a little long, just wait until i add the types as well..

Public Sub mainFilter()
' variables to enable filtering by color
Dim red = ""
Dim black = ""

[code]....

So basically is there a better way for me to go about filtering these table values? I notice in visual studio I can add queries to the dataset in there and they work quite well directly on the source table, without using a dataview and temptable, but when I open the query builder I can't add variables to the queries, which would force me to make queries for every foreseable scenario, and add buttons or menus to activate them all....not good.is there a way to hand code these queries with variables?

alternatively I thought about making a little rowfilter query builder, that substitutes variables for the rowfilter syntax, using some simple control flow, perhaps select case and then add them to the rowfilter query as the user enables/disables them in the form.i.e.

if RedCheckbox1 then
Redvar = "Color = 'Red'"
Maxvar = " & spinMax.value & "'

[code]....

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.net - Filtering DBNull With LINQ?

Mar 8, 2010

Why does the following query raise the error below for a row with a NULL value for barrel when I explicitly filter out those rows in the Where clause?

Dim query = From row As dbDataSet.conformalRow In dbDataSet.Tables("conformal") _
Where Not IsDBNull(row.Cal) AndAlso tiCal_drop.Text = row.Cal _
AndAlso Not IsDBNull(row.Tran) AndAlso tiTrans_drop.Text = row.Tran _

[code]....

Run-time exception thrown : System.Data.StrongTypingException - The value for column 'barrel' in table 'conformal' is DBNull.

How should my query / condition be rewritten to work as I intended?

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Counting Rows After Filtering?

Sep 23, 2009

I would like to count records of a datagridview after having applied a search criteria
the code i am using is the following:

Private Sub count_btn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles count_btn.Click

[code].....

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DB/Reporting :: XML Into DataGrid And Filtering?

Nov 25, 2008

I am saving some operational log information into a XML file. At any time the user can bring up a datatable to display the information. I don't want them to see the 'HOURLY' log. I can't seem to filter this out. Also I need to populate a list box with all the unique events for filtering.

Example XML:

Code:
<?xml version="1.0" standalone="yes"?>
<DocumentElement>
<LOG_x0020_Table>

[code]....

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File Filtering For MS Access?

Mar 11, 2009

Could anyone tell me how to filter a Microsoft Access data files when using OpenFileDialog?

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Filtering A DataGrid View?

Jun 6, 2011

I work with an access mdb When I run the program with the following code it gives an error "Nullreference exception unhandled" "the object... is not for an example of an object..." (very free translated but you will surely recognize this)

This is my code:

Private Sub TextBox5_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox5.TextChanged
Dim dvFilter As DataView = Nothing

[Code].....

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Filtering A Listview On Dates?

Oct 31, 2010

Oke I'm writing a small program where the user can fill in some textboxes and a Montcalendar and then put it in a listview by clicking the add button.

The listview has the following columns:

--Month ( which is retrieved from the monthcalendar view as followed: Monthcalendar.SelectionStart.Month)
--Day ( which is retrieved from the monthcalendar view as followed:

[Code].....

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Filtering A Table Adapter?

Aug 17, 2010

I'm currently trying to create a system which stores different cases for clients using Visual Studio 2010.When adding fields from the database a table adapter is automatically created.Me.TblMattersTableAdapter.Fill(Me.MJPAccessDataSet.tblMatters)Now my problem is that each case may be at a different stage. They are either 'Active', 'Closed' or 'Archived'.So my question, is there a way to filter these results? I've tried creating DataTable and only adding the archived cases but I couldn't get it to work. I was trying.

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Filtering A Win Form With Sql Command?

Feb 21, 2011

I am using VB Net (2008) and SQL (2008) in Windows Forms, I am trying to filter a DataGridView , this DataGridView is being fill by Add New Data Source to my win form thus Dataset, Binding Source, Table Adapter are added to my form. Also my win form has 4 combo Boxes, a button and a DataGridView . Cbobox1 hold all the columns Name of the DGV , let say for instance that Supplier is the name of the column selected by cboBox1, CboBox2 which hold all the operators (being fill manually) like ( =, <> =< , >=, < , > , like, not like, between, not between, is null, is not null ), CboBox3 hold all the names of the Suppliers in alphabetic order, CboBox4 hold the same as CobBox3, Note: Cbobox3 and Cbobox4 values change as CboBox1 select a different column name. When using BindingSource.Filter every thing work fine, for this ex: let say cboBox2 is worth <> See part of my code EX:BindingSource.Filter = String.Format ("{0} {1} {2}", cboBox1.text, cboBox2.text, boBox3.text) except when using the operator "Between" I get this message āœBindingSource.Filter do not support this type of operator". So this is why I am trying to use the Sql Select Command. Wandering if it is possible to use the already Sql Connection and Table Adapter to build a SQLString Filter and also could I use the curly braces.

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Filtering And Displaying Database?

Jan 20, 2009

I want to be able to use this program to filter through a list of doctors, and based on what doctor you select, only show the patients who see that doctor.

Here is what I have so far, the database has a column with just the doctor names so I thought I should be able to filter it by that and show the patients, but none show up. I don't get an error and it seems to refresh, but nothing ends up in the schedule.

[Code]....

Actually I just realized I don't think I loaded the data from the database as the form loaded. I tried doing that, but get an error where I called for the data to be loaded. I added the code where I try loading the databases.

"No value given for one or more required parameters."

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Filtering Data In A Datagrid?

Sep 25, 2009

I am using a datagrid to display a dataset. I would like to filter rows on certain fields (ex: ____ (Male/Female). I would want to it post-data retrieval on the client side.

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Filtering Data In A DataSet?

Jan 14, 2009

I have a database with a Student table and a Class table. There are many students and many classes and each student is a member of a class.I then have a windows form that needs to display a list of student names in a listbox. However, I have a different form for each class. So for example in this form I have coded below, I need to display all students that are members of class51. The code I have so far is reading in all students from tblStudent and this is not what I want. I know that if I was doing SQL or something I'd simply write SELECT * FROM TBLSTUDENT WHERE CLASSID =his?

Private Sub frmAttendace51_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'clear data set of any existing data

[code].....

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