GridView - Check Each Row And Do Ping To IP Then Write Result
Jul 14, 2009
I have a gridview with two cells cell(0) is a IP-number and cell(1) is a resultTxt. I have X number of rows. I want a solution that check each row and do a ping to the ip and write result to result. I want to do the ping in a new thread and i want to be able to do more then one at the time. So I want a loop that keeps checking the ones that are not online until they goes online. It's the thread-part I have questions about, looping gridview and doing a ping I can manage, but it I don't do it in a thread the interface freezes.
i have tried altering some code i have to ping an ip address and store the result in an access db.i had it working when i had the ip hardcoded in as a string but I am now gettin an error.instead of having the ip address hardcoded in to the code i want it to be read in from the access db but im now getting this error:System.nullreferenceExceptionbject reference not set to an instance of an object at...button1.click event args ei have underlined the piece of code i tried to change
i have a little problem with the ping in vb. i have a richtextbox and i want to write in a text file the result. I done it, but my txt file loks like this:
I changed target framework from 3.5 to 4.0, no other changes. A simple ping which worked with 3.5, now with 4.0 the result gives Canceled=True. what may cause this?
Public Sub StartInternetConnectionCheckEvery(ByVal seconds As Integer) Dim timer As New Timer() timer.Interval = seconds * 1000
A little background, the client that I am working with has an enterprise AD that is a mess. They have no containers for servers or any organization what-so-ever. They also shutdown servers and did not remove them properly from AD. So I needed to come up with a program that would find all the windows server, identify them by OS, and then check to see if they would actually respond to a ping. (I am aware that this is not a perfect method if they are refusing ICMP's but its good enough for my purposes). The completion of the program will display all the information and then allow the user to save the excel workbook in a location that they choose.
vb.net Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
I am trying to write a program to ping computers on my network to see if they are turned on. So far i have the following:
Code:
If My.Computer.Network.Ping("192.68.0.5") Then MsgBox("Computer is on.") Else MsgBox("Ping request timed out.") End If
If i use ip addresses, this works fine but i would rather use hostnames due to the ip addresses being dynamic (something which is outside my control). Using the hostname, it reurns "Computer is on" if the ping is successful, but if the hostname cannot be found, instead on returning "Ping request timed out", an error occurs as follows:
A first chance exception of type 'System.Net.NetworkInformation.PingException' occurred in System.dll
I am trying to use the my.computer.network.ping method to check a server's ping. what I realize is that I need to open a socket. I do not know how to do that. I have a textbox with the website url.I have a label that will display ping.
I am attempting to write the entire contents of an ADO.NET DataSet to an Excel 2007 spreadsheet and, while having partial success, I am unable to dump the contents of the DataSet into the .xlsx file. "Partial success" meaning that I can generate the spreadsheet(s) ok, but cannot get the DataAdapter.Update to work.
hi there,first of i know nothing at all and my goal is to make a app for xp to check a database and check/patch a iso and then to burn the result to dvd-dl, basically like a app called abgx360 checks the database then like xbox backup creator burns the game, i'd like to make a app to do both, i'm going to college next year in september to learn programing c+ andf a few other things, but thats a longtime away.
i am trying to make a search form with 1 label(surname) and textbox. i have 1 gridview on the form aswell. can you plz provide me any code so that when i type in textbox i should c the result in the gridview. wat i have done right now is. i have added data source and i than dragged the dataset.but when i load the form i already can see the data loaded on grid view .it than filters depending on the textbox. i want this gridview to be empty when it gets loaded.
Im trying to change the information on each row depending on the result from the query. Im thinking that at the minute my problem is that I'm only returning the first result from the query into the result.
e.g. query returns row 1 with '1232' row 2 '1243' but result is only ever set to '1232'
how to display result in gridview according to textbox only if textbox2 date value is greater than textbox1 ?i have two textboxes and gridview ... if i type in Textbox1 : 2-Jan-2011 and in textbox2 : 1-Jan-2011 then in label1 the eroor message display else ..if textbox2 value is greater then textbox1 value then gridview will display records according to textbox1 and textbox2 from database
I have a set of textbox's 0-8 each has a label as textbx0 to textbx8. What I need to do is perform something like this:
for z = 0 to 8 result(z) = a + b textbx(z).text = result
I know this is not complete.I need to write a result to each textbox0-8. I can do this 1 statement at a time, is there an easier way using for, do or while loops?
I have used mshflexgrid for my vb.net program. But it shows error when I try to build because vb.net doesnt support mshflexgrid. Please check my code & tell me what should I do to do same thing there in datagridview? Datagridview doesnt support same code. So would you please tell me what should I write for it?
My code looks very similar to this post Read bytes from NetworkStream (Hangs), which I copied below. ( I realize this is c# - I need a vb solution)
[Code]...
My issue lies in this:
I have a form that takes user input on which tif file(s) to find (which ends up being the getBytes(message) ). When one does this, it always returns one result - the first tif file that fits the criteria, However, I know in certain instances I should recieve more than one match.
Then I send the results to a picturebox and should be able to scroll through results (which this part works fine)I've tried a few ways to get multiple results, but maybe I'm missing the obvious? My best guess is using the asyncronous beginread/write.I've attempted using a for loop but I end up getting a bunch of the same tif files as a result..
First time poster and new to ASP programming.I have a functional database to where i am trying to add new functionality.I'm trying to add the idea to check if a returned string is empty, if so get value from a backup table which holds historical information. Here is what i have got for the specific part:
how to say it. Im going to be making a program for my work, something for our CNC programmers to use for referencing machine code. Basically what i want is to have 2 combo boxes. One of them will have some letters, the other will have some numbers. If the user selects "X" in the one combo box and "54" in the other combo box, i want a label that will output "5221". The output is a given number, it will never change. Everytime that combination of of combo boxes have those things selected it will output "5221". So now my question is what is the best way to do this? My first instinct was a select case. Is this the best way to do it? I was also thinking about possibly using textboxes and having the user manually enter values instead of a combo box with some 60 numbers in it. I marked this as a discussion also, thinking it is more of a discussion than a question.
In my .NET application I have to get results from a MS Access database. I would like to add error checking to make sure a row was returned from my SELECT statement.
Im using visual studio 2005 and access 2007 as database. I have already connect the database which have two table with two gridview in a web form (asp.net). Now i want to compared the data in the two gridview, and those who are matching should be displayed in a pop up Text box. All this should be done by clicking on a single button.
The following is the codes which i have tried and it does not work. I dont know where the problem. The following codes are for those who does not matched, which will be display. please answer should be in vb.net not C#
I'm getting the following errorError: Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled.I want to put the grid in excel onclick
Sub bttntxtfile_Click(ByVal sender As Object, ByVal e As EventArgs) GridViewExportUtil.Export("Customers.xls", GridView1) End Sub
I am trying to ping a text file("C:/Domains.txt") which is a list of domains, then have the resulting IP address written to a different text file ("C:/IP_Addresses.txt"). And this action will be done with a Button_Click.
I have a DataGridView that contains a few columns of data. Is there a way to check a column for a value before i add a new row, just to make sure i dont put dupes in it?
In my form I have four text boxes (2 in each row); Textbox_FN1, Textbox_LN1 in row 1 and Textbox_FN2,Textbox_LN2 in row 2. When a button is clicked; I want to pass the row number to the following procedure which needs to read values from two text boxes and write to DatagridView. The code below writes the literal "Textbox_FN1.txt" but I need actual value from the textbox control.
This line of code references a checkbox in a Gridview, how can I assign the value of the check box 1 or -1, I think it is for checked or unchecked, to a variable so that I can run an if statement against it, and change it to True or False?
Using VB.Net (Windows Application)I am using checkbox in the girdview column, now i want to add a checkbox in the header.If i select the checkbox in the header, all the checkbox in the column should select automatically.
I'm still trying to understand and use Use Cases and Test Driven Development, but having a hard time crossing the line. I'm hoping someone can provide a good example of how setting a datasource and/or databinding a gridview could be accomplished using Test Driven Development. Here is my pseudo approach at it.
