I have several textboxes trough which i add data in the database. after clicking the save button the data is added to teh database. and if i click again on the ssave button without changing the content of the texbox it adds the same data to the database. i have tryied using textbox.modified but it only works for blank textboxes. how could i prevent from adding the same data?
View 6 Repliesscenario:
-folder x resides on server a, server b ,server c
-x contains same set of files in a,b,c
whenever any file gets modified in a, it should get also modified in b and c as well
similarly b->a,c and c->a,b
my idea of implementation is -when ever any file is modified on a server, compare timestamps and force copy the modified in the other two How should i go for implementing it?
1)how to check if a file is modified
2)how often this check should be done and how this should be implemented should a service be running to perform thi check i want to do this using .NET?
I've downloaded an MD5 tool to calculate the MD5 string of my app.exe e.g. (e.g. MD5 string = 0b7ee747f3be5bc53b8afd4f01b5c22a).I was just wondering how i could put the calculated string in startup of my app to see if it has been modified
View 2 RepliesI have a folder that can (hundreds currently) but upwards of 10's of thousands of files. I have a program that gets all file names, and sorts them based upon set criteria and displays them in a treeview. My issue is right now a few hundred files moves fairly quickly when getting files name (path.getfiles), sorting, and returning sorted list for further search and display. My concern is when the number of files starts to increase, alot of these functions will take exponentially longer to perform. Especially my organizing function.
Because my files are part numbers <PartNum><Rev><SubRev><ManuNum>.<extension> I first sort out all different Part numbers first making the list manageable (maximum of a few thousand). Then as you choose a part number to work with, it retrieves all files associated with that part number (maximum of a few hundred).
My concern is everytime I need to look for a file in anyone of those steps, I have to import all file names, search and return correct file path, and Im sure this will become slow as the number of files increase. I dont mind having it do it once then update the list as needed. So I was thinking import and sort all file names at load, and check every so often for and files that might have been modified recently and just update it's entry in the sorted list. But this means my program has to stop, and check all files for changed "modified" time, which too will be slow-ish.
Okay, that snippet made the file I was trying to open in the %USERNAME%AppDataLocal folder worked perfectly, again, many thanks - But now I'm 3/4 of the way through my program, and I've hit a wall - I have the exact same program I made in VB6, and it works to perfection, but I am TRYING to switch over to .NET, and am finding a lot of difficulties in getting certain things to work - My biggest headache right now [ Which is basically the finishing of my program ] is a bit hard to explain, so this may be a rather long post: One of my programs that I use to keep track of my Music hard drive outputs to an XML file, in which there is one line I would like to be able to 'Replace' through the program I am making now to a different user-defined string, and close [ Applying string change/save ] the XML file. I have my Main Form, a TextBox1 [ I can't get the XML to open in a ListBox like I wanted ], TextBox2, a 'Locate String' Button, a 'Modify' Button, and an Exit Button. I open the XML file with this in my Form1_Load event into my TextBox1:[code]
The <DateValue> is the line I want to be able to modify [ Which the entire string looks like this: <DateValue>2010-04-10T10:00:03.5009756-04:00 </DateValue>, and I want to be able to change the date and time to whatever the user specifies ], which once the XML is loaded into TextBox1, when the 'Modify' Button is clicked, that string is then loaded into TextBox2... This is where I am lost - How can I apply the modified string to the TextBox1.Text [ Entire XML file ], and save it upon program end, without the rest of the XML lines being disturbed? I realized I needed another Button - The 'Modify' Button now loads the selected string into TextBox2, and I have a 3rd Button to 'Apply Modification', which I want to update the <DateValue> string in the TextBox1 [ Full XML file ] from the modified string in TextBox2, then save on exit - Hope this helped clarify things.So here's the routine:
1. Form loads, opening the XML file, and loading it into TextBox1.
2. User clicks 'Modify' Button to load searched string into TextBox2.
3. User modifies TextBox2 entry.
4. User clicks 'Apply Modification' Button, which changes the searched string in TextBox1 to the modified user-defined string.
5. User clicks 'Exit', which saves the XML changes from TextBox1 [ Without messing up the XML file format ], and the program ends.
I have a modified button control with a string array in it. I am having trouble sending the string array to the form with the modified button on it. Anyone know what i can do? The form uses a arrayList to hold the buttons since they are made at runtime.
View 4 RepliesI am making a security app. It searches for personal data as email-addresses and IPs, but the code to search for a ip-address is not working right! My scanner should manage to read the ip out of ex:
"ufyukovgjhsui192.168.0.100tyugfk
uyfkj192.163.7ytigfkidf,tygfnhmyu6"
I made this code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim i As Integer = 0
Do Until i = TextBox1.Text.Count
[code]....
I am trying to do an if/then to check a textbox for text. I have a form that has name, address, etc. I need to make sure the form has a name in the txtName before it continues on.basically
If txtName has text Then
'continue about your business.
Else
err.message ("you need text.")
end if
I'm making a program and i want to make it so it checks if the textbox as any text entered at all [code]...
View 3 RepliesI am trying to do an if/then to check a textbox for text. I have a form that has name, address, etc. I need to make sure the form has a name in the txtName before it continues on.
basically
If txtName has text Then
'continue about your business.
Else
err.message ("you need text.")
end if
[if me.textbox1.text= system.dbnull then msgbox("please inter a value")] it says system.dbnull can't be used as an expression so how can i check the if the textbox has a null value
View 13 RepliesIve got a Form application in VB.NET.I have many text boxes on one form (about 20). Is there anyway to check them all at once to see if they are empty instead of writing out a massive line of code to check each one individually such as
If txt1.text = "" Or txt2.text="" Then
msgbox("Please fill in all boxes")
How to only check that checkbox which is entered in textbox ? If i have 4 checkboxes eith text checkbox1, checkbox2, checkbox3 and checkbox4 and 1 textbox if i type in textbox 1,2 then only checkbox1 and checkbox2 would be checked again directly after doing that i type 3,4 in textbox then only 3,4 will be checked and 1,2 will be uncheked.. remember i wanna do this coding for unlimited no. of checkboxes .. so dnt provide coding for 4 checkboxes only.
View 2 RepliesI have multiple textbox in a form. How do I know what textbox the cursor currently is? Trying to do something like this:
If TextBox2.Focus() = True Then
MessageBox.Show("its in two")
ElseIf TextBox3.Focus = True Then
MessageBox.Show("its in three")
End If
But I think its not working.
I'm trying to check for the number of decimals in a textbox, but I'm not very successful so far:[code]How can I correct my code to make it work? Or any other/better solutions?
View 2 RepliesIs there a way to check if the user has changed the value of a textbox?I try to acces a variable in one of my methods to compare against the value but I can not seem to be able to access it?
View 1 RepliesI want to check if the value in the text box is EVEN NUMBER.else throw an error mssg.
View 3 RepliesHow can i check the exact word in a sentence.even though it is a alphanumeric.
Example: I have a user define value of "hello! how can i help you?"Then it will automatically check if the user's input type the exact text.if not it will produce a said number of error.
Example:The user input a value is a "Hello. how can i help you." it will produce and error base on the input text of a user.
Error:3 the error is "H,<.>,<.>"
i am probably overthinking this but how can i check the textbox for either a 655 or 699 in the first 3 numbers in the textbox? The current code i how now works but displays an error if (im guessing) it doesnt find the other number in the textbox as well:
[Code]...
I have two text boxes (txt1, txt2) and an exit button (btnExit)In txt1.Leave event; i have some validations. If validation fails then I keep the fous on txt1.If btnExit is clicked then I do not want to execute the validation and instead close the application.. How do I do it?
View 4 RepliesI am using VB.net to create a simple winform. I have the option to save the data I input on that form. I am trying to prevent the user not to save the data if textbox10 is empty. I tried the while loop but I go into an infinite loop. The code is below. The if statement gives the error but allows the user to save.
[Code]...
Im trying to get my code to check that my textbox has 16 digits in it so that it can then validate the number entered. Here is the doe i have so far: [code]
View 3 RepliesI've got a program and what I need is for a Timer (running in a different thread) to constantly be checking a TextBox for an entry that is similar to:Quote"(PlayerName)" has joined the server.Where (PlayerName) would be replaced with the players name in the TextBox. What I would need the TextBox to do after it has found this entry is to add (PlayerName) to a listbox. If someone can help me out this far then I can use the same code to get it to remove the player when they leave.Below is a picture of what it should look like inside the program.
View 3 RepliesIf in textbox the default textbox value id 1,2,3,4,5,6 ...... upto 55then the following checkboxes would be checked according to the text display in text box...if textbox1.text =1,2,3 then in my webform checkbox1, checkbox2, checkbox3 would be checked ... on page load event...
View 2 RepliesHow to check if the string in textbox has space/spaces then I will put it in if condition.
View 9 RepliesI was trying to make a button to check if textbox numbers sum is an exact number(Ex: 70) [code]
View 8 RepliesI'm struggling with my computing coursework in college and I though My issue is simple but I can't get it right. I need to validate the text into a textbox and check that it contains ONLY alphanumeric characters, but it MUST contain both, not either numeric or alphabetic, but some of each.The textbox should store information about a Street address, that's why both the street Name and the property Number have to be input. Spaces " " and points "." should also be allowed.If it helps, something like "12" or "St. Davis Street" should NOT pass the validation checks, whereas "St. Davis Street 12" will do.I would like to get it done with regular expression as I've been using them throughout my work, but I don't mind other solutions.I'm using Visual Studio 2010 Professional, 4.0 framework and Visual Basic.
View 2 RepliesSo I have a keylogger so everything I type shows up n the textbox I want to make it so if I type a certain word like a kind of password my application closes
View 3 RepliesI am having trouble using an If statement to check to make sure the value entered in a textbox is a double. I was told to use double.parse to check this but I can't get it to work right. Anytime I run the program and type text into the textbox, it tells me the code is not right.
Here is my
Dim DblFahrenheit As Double
If TextBox_FahrenheitTemp.Text.Length = 0 Then
MessageBox.Show("No temperature was given. Please enter a temperature to convert.")
ElseIf DblFahrenheit = Not Double.Parse(TextBox_FahrenheitTemp.Text) Then
[Code]....
Now, when I say "word check" I don't actually mean spell check or something like that, I just couldn't find a good 1 or 2 words explanation. (I use Visual Basic 2010). Here is what am I interested in: For example I want to make answering bot and when I write a sentence in a textbox how can I check does that sentence contain one specific word, for example if I write: "I feel bad", how do I check does that sentence contain word "bad" or word "feel".
View 2 Replies