i am trying to compare user input number to with strings. i want the users to only input numeric values in a text box. but if they input a string i want an error message to go inform then to input numbers. this is the code i have:[code]
View 8 RepliesI have a VB.net 2005 project MyProject.exe which is referring to a strong named dll ReferenceDll1.dll in its references. The ReferenceDll1.dll is referred as Specific Version=False. The version on the strong named reference ReferenceDll1.dll was 1.0.1.2 when I compiled my project. Few days later, I got updated ReferenceDll1.dll as 1.0.1.3. Replacing this dll in the install directory fires following exception.
System.IO.FileLoadException: Could not load file or assembly 'ReferenceDll1, Version=1.0.1.2, Culture=neutral, PublicKeyToken=0242eaa067ef8af5' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
[code]....
how to comparing the input of the textbox with respect to the given text and the number of error in typed textbox?
View 1 RepliesI try to read the ID3 Info from a .mp3 file by reading bytes, and then i convert it to a string, and try to compare it to a string (that contains the same word(s)) but wasnt a byte stream beforehand anyhow ALL of my converted strings have a length of 31, regardless of if its a string that says "John" or a string that says "Teenage Mutant Ninja Turtles" how can i make my converted string have the correct length? John = 4 NOT 31!!??
[code]...
Imports System.IO
Public Class LoginForm1
Dim password_guardada As String
Dim user As String
[code]....
That also doesn't work.And the most odd thing about all this, is that the passwordtextbox is getting is value from pass_desincriptada.
This might just be a matter of taste, but I'm wondering if there's a "recommended" way to compare a variable of type Object (which might be Nothing or have a different dynamic type than String) to a string literal in VB.NET. The following options obviously won't work:
If myObject = "Hello World" Then ... -- won't compile
If myObject Is "Hello World" Then ... -- tests for reference equality, which is just wrong
If myObject.Equals("Hello World") Then ... -- throws an exception if myObject is Nothing
If DirectCast(myObject, String) = "Hello World" Then ... -- throws an exception if myObject is not a string
Thus, the only (simple, single-expression) solution I could find is to use
If "Hello World".Equals(myObject) Then ...
which looks a bit clumsy to me. Did I miss any obvious alternative, other than doing type checks or explicit checks for Nothing?(Of course, we're talking about Option Strict On.)
I am making a app that reads options of a ini
dim config as new iniconfigsource("patch.ini")
dim test as string = config.configs("news").getstring("test")
Then I made a dropdown with options
I want my script to compare the values of the dropdown with the string readed from the ini
then uses it as selected value (the so called standard value) the one uc without clicking on the arrow if the none of the values match with the string value of the ini then it executes
dropdown1.selectedindex = 0
after slicing and dicing, i got 2 vars with the following values in vb.net:
strTag = "<#<span class=SpellE>vermittler_person_Name</span>>"
tmp = "<#<span class=SpellE>vermittler_person_Name</span>>"
Comparing the vars gives a false:
strTag = tmp ' ==> false
Comparing the values directly right there gives a true:
"<#<span class=SpellE>vermittler_person_Name</span>>" = "<#<span class=SpellE>vermittler_person_Name</span>>" ' ==> true
Both are strings, i tried all kinds of stuff: string.compare, string.equals, also regex etc. etc. everything works perfect with all the other strings with simlilar structure, just not and only not with "vermittler_person_Name" in the middle...
I have a dataGridView and a textbox on a form. I want to be able to search through the dataGridView and sort it compared to the string in the text box. Ex: I type "acv" in the text box and all strings containing "acv" are sorted to the top. I'm accomplishing this with a bunch of gymnastics involving datatable.select and some clearing and filling but it's ugly and slow.
View 2 RepliesI created a listbox using VB.NET. When the user select an item (it is a string format) in the listbox and click on a button, there will be a number beside the string and the number will increment which time the button is clicked. Anyone know how to do it...?Below is the coding I'd done, but I don't know how to do the increment part. Anyone know what coding I need to add?
Dim no As Integer = 0
listBox.Items.Add(listBox.SelectedItem & no)
I'd like to convert a string which contains a decimal number into string that contains the binary value, the octal and the hexadecimal value of that decimal number.Afterwards I also like to convert a string containing a binary, octal and hexd. number into a decimal string.Basically I'm looking for the functions:
dec2bin
dec2oct
dec2hex
bin2dec
oct2dec
hex2dec
I'd not prefer to rewrite a function, I'm sure the framework must have these functions already.
How can I do for converting 3 in "three". Or converting for example 153 in "one hundred fifthy tree"
View 7 RepliesI am trying to get a number into a cell but as a string not a number. For example if I have the number as '12345678901234' instead of putting that exact number in it changes it to ' 1.23457E+13 '. How do I get it to read it as a string and not an integer? Here is the code that I am using.
Dim
num As String
If pRow.IsProjectNumNull = False Then
[Code].....
How do I count the number of times that a string appears in another string. I know this code:
If odocument.ToString.Contains("window.alert") Then
pops = pops + 1
End If
But that will just see if the desired string contains "window.Alert" once, rather than how many times it does contain it.
when i am trying this Date.Compare(Format(DateTimePicker1.Value.Date, "dd/MM/yyyy"), Convert.ToDateTime(dr(1))) < 0 it gives an error message as "Conversion from string "23/06/2011" to type 'Date' is not valid."where dr(1) is database field in text format as 29/3/2011 (dd/mm/yyyy) .
View 3 RepliesI have the code below on a timer( "b" is a bitmap )
If
Not (Clipboard.GetImage
Is
Nothing)
[Code]....
The problem is that it raises the event even if the picture didn't change.
comparing the 2 images without actually comparing them pixel by pixel (too slow to do the job)?
I would like to get number from a string eg: My123number gives 123Similarly varchar(32) gives 32 etc
View 5 Repliesi 1 2 get number from string.
Ex: gsgfsg23sd ==> 23
sdfgdsf23dsf432 ==> 23432
How to get a line number that contains a specified string in a text file?
Example text file contains:
Red
White
Yellow
Green
How to get "Yellow" line number? and can i write a string in a specified line, lets say i want to write a string in line 2?
Sub adddashes()
Dim j As String
For u = 1 To 10
dashnumber = 1001
Range("D" & u).Text = Range("D" & u).Text + dashnumber
dashnumber = dashnumber + 1
Next u
End Sub
Ok on my sub, i have a list of names and i want to add a sequential dash number
NAME-1001
NAME-1002
NAME-1003..
etc....
However, i just straight up can't find the code to 'join' two variables or add a variable to an existing cell.....
I'm reading data in from a comma-separated text file and storing the data in an array for later use. Some of the values are to remain as strings, and I need to convert some to integers, for which I was trying to use, for example, integer.parse(ar(0)).
My problem is that the string values are randomly distributed through the text file, so I need to be able to test whether the string can be converted at all before doing the conversion.
How do you check to see if a string is a numberic value?
View 7 RepliesI want Convert a number to string![code]...
View 6 RepliesI need to convert a number to string.[code]...
View 26 RepliesFirst the CINT etc commands will not work for this.
I have the following value 2A000000412DF21B in string displayed here as hex. It should convert to 3026418950686503451 but instead I'm gettting 3026418950686503424.[code]...
How to convert a md5 string value to number?
View 1 RepliesI'm using the following method to encode text files in vb 2010[code]...
View 1 RepliesI have a string in the following and want to extract each number from the string.
dim s as string="10,20,30,40"
dim a as integer
dim b as integer
[code].....
I have a string, specifically its "Ballpen $10 x 3pcs"i want to extract 10 and 3 then multiply it so i can get the total of 30$,i tried using regexp but im too noob with it
View 4 RepliesHow to get a line number that contains a specified string in a text file?Example text file contains:d White Yellow Green
View 3 Replies