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How can i store only numeric value in a textbox in c#-gui?

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  • shardkumar
    shardkumar Dec 11, 2008

    thanks very much



    when i want to add address of song in anchor tag of html in JSP then it is giving an error.



    plz help............

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You can do it by comparing the value entered to ascii value of all character except numeric
s

Posted on Dec 09, 2008

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How to display a letter designation on TL 30X IIS


You have 5 memories that can be used to store a numerical value (A, B,C,D, and E). Whether these qualify as variables is another matter. There are also system variables in STAT mode, but you can store values in them. They only hold the values that the STAT feature calculated.

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Im trying to use Algebra on the new calculator I bought, as its important for my school use. As an example, I write: 3x+3x and that result is 0? How come? Shouldn't it be 6x?


This calculator cannot do algebra ( manipulating expressions with letter symbols) . It does not have a CAS (computer Algebra System). All it can do is evaluate (find the numerical value of) expressions typed in. If it has the appropriate keys to enter variables such as A,B,C, or X and Y., and you entered an expression with variables it will use the numerical values stored in the variables. If you have not stored anything in a variable, it is given the value 0 by default.

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Oven doesn't work. Panel shows "FFF"


FFF code - Control error, failed EEPROM

The main control operates a series of software commands, which control the various features and functions of the oven. Each function or operation has a numerical value assigned to it. The numerical values can be added up - this is called the check sum operation. Every time the system is powered up and after each clean cycle the system performs a check sum and compares the value to the value programmed into the software (stored in memory).

An EEPROM check sum error or FFF code occurs when the values differ. If this happens, replace the oven control board (also called clock or ERC).

Replace the oven control board (also called clock or ERC).

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HOW CAN I GET AN EXPONENT FROM TI-84 EX: B


You cannot use a letter as an exponent, unless you stored a numerical value in memory B (EX: 3 [STO>] [ALPHA] B stores value 3 in B)
For any numerical value of exponent ( positive, negative, integer, fraction, what have you) you use the general power key, marked with a caret [^] under the [CLEAR] key.

Example: To enter 15 to power 5
Type in 15
Press [^] key
Type in the value of the exponent (5) and press [ENTER]
You get 759375 as result.

Feb 18, 2011 | Texas Instruments TI-84 Plus Calculator

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I just got the TI-Nspire. I'd like to solve a problem with undefined variables using Negative Exponent and things like the Expanded Power Rule. The Nspire will not let me store "x" as a variable. How...


You need the TINspire CAS (Computer Algebra System) to do symbolic manipulations. The Blue TINspire (with TI 84 keyboard) can only perform numerical computations.
If you use variables, the calculator will assign the numerical value stored in the variable.

Aug 17, 2010 | Texas Instruments TI-Nspire Graphic...

1 Answer

CASIO fx-300ES


Storing
  1. To store numerical values in the variables A,B,C,D,X,Y and M you use the [SHIFT][RCL] key combination to access the (STOre) function.
  2. In what follows [ key] is the physical key and (key) is the SHIFTED key
  3. ex: store the value 13 in variable A
  4. 13 [SHIFT][RCL] (STORE) [(-)] (A)
  5. The calculator displays 13 --> A on top line and 13.000.. on bottom line.
Recalling
  • To recall a value stored in a variable ex: recall value stored in variable A
  • Press [RCL][(-)] (A)
  • Calculator displays A on top line and 13 on bottom line.
If you need to use the variables A,B,C,D,X,Y, and the = sign to create an expression to be solved with the solve( function you must press the [ALPHA] key

=: [ALPHA] [CALC](=)
A: [ALPHA][(-)] (A)
B: [ALPHA][ 0 ' "] (B)
X: [ALPHA][ ) ] (X)
Y:[ALPHA][S<=>D] (Y)
etc.

Jan 05, 2010 | Casio fx-300ES Calculator

1 Answer

In the programs I have made when I use the Request enter a integer, I always have to press the alpha button before entering a # in the field when running the program, is their a way to program a request...


Hello,
The syntax of the command is as follows
:Request Message, VarName
where Message is a character string containing the message that will be displayed as a prompt, and VarName is the name of the string variable where the input will be stored.
If you want to input a numerical value you must convert it from character string to a numerical value (I know, it is like splitting hair but string 123456 is not the same as number 123456)
You convert from string to numerical value with the expr() command.
Exemple:
:Request "Value of a? ", s
:expr(s) --> a

That should do it.

Hope it helps.

Oct 15, 2009 | Texas Instruments TI-89 Calculator

1 Answer

Text box restriction


I hope this helps and thanks for rating my effort...any other questions...shoot em to me....The Fang.

Restricting character input You can use the SetInputTextType command to restrict the characters that the user can enter in the text input dialog box. For example, suppose an application contains an input text field for users to provide a numeric value, such as their age, and that the input text field has the variable name ageVar. To ensure that the user enters only numeric values in the text input dialog box, you could add the following code to your application:
fscommand2("SetInputTextType", "ageVar", "Numeric");
When users open the input text dialog box, they can enter only numeric values in the text fields.
For more information, see SetInputTextType in the fscommand2 function entry in the Flash Lite 2.x ActionScript Language Reference.

May 28, 2009 | Adobe Flash® CS3 Professional Full Version...

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How to create Dynamic Lable & TextBox & save their Values in DB.


Best way to do this is to place label and textbox as usual but hide them from the properties.
In the SaveButton Click event, you can set the property for the label and textbox to visible dynamically by code.

Apr 24, 2009 | Microsoft Designing ASP.NET Applications...

1 Answer

Input textbox


so simple
my_txt.restrict = "A-Z 0-9";
my_txt.restrict = "A-Z";
whatever u can specify in it

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