Anybody knows how to detect that the user has pressed on the ESC key when in a FileSave or FileOpen Dialog, in VB.Net ?have added KeyPreview to the form on which the FileDialog rests, but the key press is not seen and the FileDialog returns the file name I had given it as a suggestion to the user upon calling the FileDialog.
View 2 RepliesAnybody knows how to detect that the user has pressed on the ESC key when in a FileSave or FileOpen Dialog, in VB.Net ?I have added KeyPreview to the form on which the FileDialog rests, but the key press is not seen and the FileDialog returns the file name I had given it as a suggestion to the user upon calling the FileDialog.
View 2 RepliesI have developed a Component and I want it to be able to detect when it's running in the IDE.
Or, let me rephrase that - I want my component to be able to detect when its parent form is running in the IDE.
I can use .DesignMode and a few other methods to detect when my component is running in the IDE (For example when my component is placed on a form etc)
But when the parent form is executed from within the IDE then .DesignMode returns false.
Is it possible for a component to detect if its parent (the form) was started via an IDE/Designer ? or via the command line/start menu or what ?
so in a program I'm working on in VB.NET I'm trying to make it so I can take in a list of strings (each on a different line). For each line I want to take in the line, and break it up into three parts. The first part goes from the beginning of the string to the first colon in the string, the second part goes from the first colon to the at symbol, and the last part goes from the at symbol to the end of the string.
For example, I'd take in a line of the series of lines: hello:world@yay
I'd want to break it into three separate strings of "hello", "world", and "yay".
How would I do such a thing in VB.NET?
I need to get the last Character in a text string and to decide if it is an equals sign or not.
View 5 RepliesI'm writing a program and it's got a textbox for the user to enter values. Since the textbox text property should only be a "number", my program need to detect invalid charaters like "*/&()$" and tell the user to only enter a number. Does anyone have an idea how to do that?
View 6 RepliesIs there a way to detect a Chinese character in a string which is build like this:
dim test as string = "letters 中國的"
Now I want to substring only the Chinese characters. But my code is database driven, so I can't substring it, because the length is always different. So is there a way I can split the string, from the moment I detect a Chinese character?
How do I make a regex that can detect a certain character string that is either all by its self in a line, or separated by white space.
If I have the line:
"ot"
Or the line
"sdf gdfg dv ewrsef fvdf ot sdfsd sdot"
I want to be able to detect the 'ot', except for the one that is 'sdot'
The string is coming from this [url]...
View 2 RepliesBelow is the code i am using for user input which works fine apart from one thing that i can not work out how to do.I want to detect if a user had inputed a character in the wrong place. The correct input is:
D:Folder name
The incorrect input is:
D:Folder name
How would i detect the extra '' at the end?
Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click
Select Case Doc.Text
Case ""
MsgBox("Invalid Path")
[code].....
Is it possible to add a icon to a certain data type that appears in a file dialog For example for a .html would be a icon of the World.Is this would show up in a open dialog?
View 1 Repliesim having a problem saving text.. this is the problem i have a textbox that a multiline... now when i click the save button it pop up a save file dialog.. now i want to do when the user click the ok button in a save file dialog it will save as a text file and their file name is the user input into the save file dialog..
i use the system.io.streamwriter but i dont how to save the text in the textbox..
Frnds i want to insert image into picture box using the file dialog and that image should get stored into a local folder.....But the problem is the image is not getting saved n the below line is throwing an exception.
dim rollno as string
rollno=val(1)
PictureBox1.Image.Save("d:
[code].....
I Have a folder in this path C:UsersXXXDesktopOriginalXXXinDebugBackup And when I save my project with "XXX" name the same time I need to change the Backup Folder using that save filedialog name and it shouldn't overwrite it.
Private Sub SaveProject_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SaveProject.Click
Using sfdlg As New Windows.Forms.SaveFileDialog
sfdlg.OverwritePrompt = True
sfdlg.InitialDirectory = "C:"
[code]...
How can I remove the actual file name from the path returned by the FileName property of an Open or Save File Dialog?
All I want is the path to the file without the file name.
Almost each letter of my mother tongue (Arabic) has two or more forms to be written with, due to its position (At the beginning, middle or end of a word) and what are the two letters before and after it, however, I've been trying to figure why when I type something in a textbox and use the AscW method to get the character code, it returns a code for the same character but not of the same form, which means:
If I type a word starting with the letter above, the letter would be in the initial form (its Unicode is &HFED3 = 65235) , but when I use the AscW to get the code of the first character it returns the code (&H641 = 1601) of the same letter in actually none of the previous forms but apparently in the isolated form (&HFED1 = 65233).I've also tried to convert the default encoding to the Unicode's but had no accepted result and no solution through reading the two Unicode bytes (which had to be [211, 254]).
P.S. I tried something else:
TextBox1.Text = ChrW(&HFED3)
Msgbox(AscW(TextBox1.Text(0)))
to check if the problem is the AscW method, but it worked just fine, I have another idea running through my mind but I'm still not sure about it .So, is there any way to detect the actual form of a Unicode character?
I am converting an old Vb6 solution to .net 2.0 in vs2010. I've been working in C# for about 3 years now and .net for 5. I don't recall having this problem in C#, but if I want initialize a readonly collection of DerivedControlFoo Is there a clean way to do it besides creating a sub to do it all off somewhere else? I'd love to be able to do it at the class level at the declaration for readability and simplicity.
View 1 RepliesCreate a DLL component for database operation and use created component in another project. Required methods, events and properties
a. Connect
b. Add
c. Delete
d. Save
e. Record navigation (first, next, previous, last)
f. Properties for all database fields
g. Events for validation of database fields.
I've created a component whose name I'd like to be able to change while editing in the component tray. I've added a Designer action for a name property, but now I'm stuck.
Looking at the property grid, I can see that the name property is parenthesised, indicating that it's not a regular property.
How do I write an expression to calculate all characters of each row by my own defined value to each character = all the A and B and C and etc. will be as 2 and all I and J and whatever ... will be 1 so I need an end result of the total.
View 3 RepliesI am working on a sub that essentially needs to open a text file, and replace all instances of a certain character with a unicode character. I'm trying to do this by reading the original text file byte by byte, converting it to a character, and then either adding that character to a memory stream or writing the unicode character to the memory stream. Then I'm saving the memory stream to the original file.
[Code]...
[Code]...
For each character of this string I want a new character out of the string and then remove the character from the list of characters that still maybe used for other characters. It may not get the same character, you could basically just call this encryption, but it's not what I am making. I don't want to waste my time doing this one hour while VB can do this for me in <1 second.
I am writing a hangman type game and I am displaying the word to the user in a label as all *'s, but I cannot figure out how to have just one of the *'s changed in the label to the correct letter when the user inputs the correct letter into the text box and clicks the check letter button.Everything else in the program works perfectly, except for this part.[code]When I use the .Replace it changes all of the *'s to the correct selected letter.
View 2 Repliesthe coding is to 'Get input string and put its character into List, and replace the character with other.'but having problem putting each character into List and also replacing it,[code]
View 2 RepliesI want to read a text file(.txt) character by character into a database.There are 28 characters on each line and I want to read the first 16 into a column in a database and the rest in another column in the database.
View 7 RepliesIn my VB.NET application I compare words that are recorded using IPA, many of which have many diacritic marks. In one of the comparisons, I compare the words character by character. But when I iterate over the characters, the diacritic marks come out as separate characters (as I would expect since this is unicode)However, a u character is different than a u plus an accent for the purposes of this program and needs to be distinguished.
View 1 RepliesI have a value I am pulling into a string that looks like this:
M'arta
I need to have it to translate the numeric value into an actual value so that the string looks like this:
M'arta
how to accomplish this in VB.NET? Here is the relevant line of code that returns this result:
Dim occupant as String = GridView1.Rows(e.RowIndex).Cells(2).Text
My form has a texbox where user enters an ID. IDmust be4 chracters in length andof the form: begins with either "E" or "e" and the next 3 chracters cannot be "all characters".
Example:
E102 - corect
e3ff - correct
[code].....
I want to read a text file(.txt) character by character into a database.There are 28 characters on each line and I want to read the first 16 into a column in a database and the rest in another column in the database.
View 17 RepliesI am trying to error check a piece of code
This is from my previous thread which 'Codeoder' help me on..
[URL]
I have a RTB which I import with a set of 7 or 9 didit numbers, 7 for Staff and 9 for Students. e.g. Staff numbers
0628189
0628191
0629991
[Code].....