Web Forms :: Validate The Input Textbox

Nov 1, 2010

I have a textbox called "tax rate" which I need to validate the input... The only thing I need to ensure is that the value entered is a number (decimals ok of course). eg. the input might be "8.75" How do I write the validation expression?

View 4 Replies


Similar Messages:

C# - Is There A Security Reason To Validate A Textbox Input If You Are Limiting The Max Length Of The Input

Oct 1, 2010

Since I'm new to coding and I'm trying to understand why here is a little more detail on the question.If you have a text box and you are limiting the input to say 2 charactrs do you really need to validate the input further? What I have is a text box that has a max length of 2. Is there a security reason to add a validator to the textbox. I should add this is in Asp.net.

View 8 Replies

Validation - Validate Integer And Float Input In Textbox?

Mar 4, 2010

I am using below code to validate interger and float in asp.net but if i not enter decimal than it give me error

<asp:TextBox ID="txtAjaxFloat" runat="server" />
<cc1:FilteredTextBoxExtender ID="FilteredTextBoxExtender1" TargetControlID="txtAjaxFloat" FilterType="Custom, numbers" ValidChars="." runat="server" />

i have this regex also but its giving validation error if i enters only one value after decimal. [URL]

View 4 Replies

How To Validate User Input In TextBox Inside A FormView With MS SQL 2008 Database

Feb 5, 2010

VS2008 c#, asp.net 3.5, ms sql 2008How do I validate user input in TextBox inside a FormView [Insert Mode] with MS SQL 2008 Database?* FormView #fvInsertProjectInfo* TextBox #txtProjectNameCurrently, user could insert a new project using the FormView, but will only be found out that the project is already existed when pressing the INSERT button. To make it more user friendly, I would like to check that the database does not contain a record of the project the user trying to insert (by comparing value in txtProjectName with the Projects table in the database)

View 2 Replies

Web Forms :: How To Generate Rtf File Based On Input Field (textbox Input By User) C#

May 27, 2010

how can i generate rtf file based on input field(textbox input by user) c#

View 3 Replies

Web Forms :: Can Validate A Hidden Input

Apr 4, 2010

I have an input...

<input
id="ratingField"
runat="server"
type="hidden"
/>

this hidden input is used by a star rating control. the user gives a star rating of 1 to 10 by clicking on the stars and some javascript detects which star was clicked and fills the input with the corresponding number.

I want to use a RequiredFieldValidator to ensure that the client has selected a star and if not return an error message to my validation summary.but the validator seems to be throwing an exception. How do I do this?

View 4 Replies

Web Forms :: Validate Input Has Up To 2 Decimal Places?

Sep 1, 2010

I need to validate hours put into a textbox. I want to allow hours to be from 0-24 and allow up to 2 decimal places. so it has to accept

0

0.00

1.5

2.25

but not 2.225 or 25

I put a range validator that check that the value is from 0-24 but it doesn't check that there are 2 decimal places or less. how do I do that?

View 3 Replies

Web Forms :: How To Validate Input Text Depending On Selected Value From Dropdown

Apr 12, 2010

I have 1 drop down, 1 text field and 1 command button i.e. "Search". Dropdown contrains following values

Type1
Type2
Type3

In textbox user will enter numeric or alphanumeric value

Here I want to check if 'Type1' is selected so user can enter only numeric value between 1000 and 2000, otherwise display some message "Entered value is not valid for "Type1". I want to display this message thru required validator error message property

If user select 'Type1' and 'Type2' then user can enter any alphanumeric value other than 1000-2000 numeric range.

I want to implement thru Search button or once user leave the textbox after entering value. Here I want to display message.

View 11 Replies

Web Forms :: Empty TextBox Input Gives "Input String Was Not In A Correct Format" Error

Jun 10, 2010

I'm trying to update a db record via a business object, based on a users input.

In my button event handler, I check for a null or empty value like this before I set the object properties:

[Code]....

But if the textbox is empty, I get the "System.FormatException:

Input string was not in a correct format." in the line:

[Code]....

How can this be?

View 3 Replies

Web Forms :: TextChanged Event In A Textbox To Validate A Value In Textbox?

May 13, 2010

I aam working with textChanged event in a textbox to validate a value in textbox.hen i am enter data in textbox then press submit button i am getting validation summary before the textbox textchanged event. Is there anyway to fire textchanged event first to validate before button validation summary?

View 4 Replies

C# - How To Validate If The Input Text For Both Of Them Are Not Both Null

Apr 12, 2010

I'm working on an ASP.NET/C# app.

I have 2 text boxes and I need to validate if the input text for both of them are not both null
ex:

if(string.IsNullOrEmpty(TextBox1.Text) && string.IsNullOrEmpty(TextBox2.Text) ) //FAIL!!! else

that is, at least one txtBox has values

I was planning on using a custom validator but it seems that the validation function only gets called when something is written on the textBox i'm using has the 'control to validate'. Now, that doesn't work for me since I want to show an error message when both text boxes are empty. Is there a way to make the validation function to be called with, for example a postback? Or is there any other better approach to this case than the custom validator?

View 2 Replies

Php - Validate If An Web Application Gets The Users Input Or Parameters?

Oct 21, 2010

I am always thinking about validation in any kind on the webpage (PHP or ASP, it doesn't matter), but never find a good and accurate answer. For example, a I have some GET-Parameter, which defines a SQL query like DESC oder ASC. (SQL-Injection?) Or I have a comment-function for user, where the data is also saved in a database.

Is it enought to check for HTML-tags inside the data? Should the validation done before adding it to the database or showing it on the page? I am searching for the ToDo's which should be always performed with any data given from "outside".

View 3 Replies

MVC :: How To Validate HTML Input Fields Using JQuery Inside Ajax.BeginForm?

Jan 24, 2010

How to validate HTML input fields using jQuery inside Ajax.BeginForm?

[Code]....

View 1 Replies

Web Forms :: Trying To Do Is Validate The Input Only When The Enter Button Is Clicked Not The Search Button?

Dec 7, 2010

I have a asp page with tow buttons search adn enter and asp required field validator in it, what I am trying to do is validate the input only when the enter button is clicked not the search button, right now when the search button is clicked it validates and throws an error.

View 2 Replies

Validation - Using RangeValidator To Validate User Input On Client Side For Double Values?

Feb 4, 2010

I was using RangeValidator to validate user input on client side for double values.One of my user said that when he enters 5E-10, my range validator does not understand that number as a valid double.

View 1 Replies

Web Forms :: How To Validate A TextBox

Dec 7, 2010

I've 2 textBoxes

txtQuantity
txtDesc

if txtQuantity is a positive Number
I must enter something in txtDesc

So

I can't submit the form without entering txtDesc if txtQuantity is positive/decimal number & No need to enter anything in txtDesc if the txtQuantity is 0/null/empty/space/spaces/blank How?

View 7 Replies

Web Forms :: Use The RegularExpressionValidator To Validate Textbox?

Oct 19, 2010

I have tried everything and can't seem to wrap my head around it...I am trying to use the RegularExpressionValidator to validate that a asp:textbox has an '' in the value that the user types in, and it can't be the first or last character.

View 4 Replies

C# - How To Give Code To Validate Textbox If The Textbox Not Contains The Value

May 7, 2010

give code to validate textbox if the textbox not contains the value except "mm-dd-yyyy" fromate it shoud display error message.

View 2 Replies

Web Forms :: Validate Textbox After Checkbox Has Been Checked?

Mar 7, 2010

I have the following problem...

I'm developing an an asp.net 2 application in c#. This site is being built with accessibility in mind, and as such I need a to build a registration from that validates using server side scripts and
not use client side validation.I need to validate a textbox (whether any text has been entered), if a check box has been checked.

Bear in mind that I can't use any clientside code such as javascript postback that is wired into the <asp:CheckBox /> control.

View 10 Replies

Web Forms :: Validate TextBox Before Submit Button

Oct 28, 2010

I have a textbox that I am "custom" validating to lookup in a table to see if the name exists. When I test it out, if it finds a duplicate, the validation results in an error message as I would expect. First is this only works if I add autopostback to my textbox and that I click elsewhere on the page. The other issue is that after I type a string in my textbox, I want it to validate such that if it returns an error, I don't want to submit the form until the validation is good.

How would I programatically set this up?

View 2 Replies

Web Forms :: Compare And Validate The Value In Textbox And Dropdownlist?

Feb 19, 2011

I hav ADMIN_ID textbox and ROLES dropdownlist, when I enter ADMIN_ID such as staff001 then at ROLES dropdownlist I must select "staff" else display an error msg, for example staff002 with roles manager.

View 6 Replies

Web Forms :: How To Validate A Textbox Value Against MS Access Database

Mar 26, 2011

I'm trying to create a simple user registration page. I'm using an MS Access database which has some test data in it. What I would like to do is use a CustomValidator on the user name textbox to check if the user name entered already exists in the database. I've read about the possibility of using the ServerValidate event for the CustomValidator control but I can't figure out how to make a connection to the database, query it to check the existing user names, and then fire off the CustomValidator if the user name exists.

View 4 Replies

Web Forms :: Validate A Textbox With Regular Expression ?

Jul 1, 2010

I want to validate a textbox with regular expression so you only can enter numeric characters, but now I want that the error validation appear if the textbox be empty. here is the code

Types.Add("NUMBER",
new
Validation(@"[d]{1,255}","Only
numbers can be entered in this field."));

View 3 Replies

Web Forms :: Validate Textbox For Bullet Points?

May 3, 2010

How to remove the Bullet points (or etc) which are copied from a word document and to a TextBox control.

I need to validate the textBox and remove if there are any bullet points as soon as User paste it.

View 3 Replies

Web Forms :: Regular Expression To Validate Textbox ?

Oct 19, 2010

i want to validate my textbox where following things are not allowed

1) phone no

2) email

3) internet url

i want to use regular expression

View 6 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved