Web Forms :: Accept Textbox Value Even If It's Null?
Jun 14, 2010
I have a javascript to validate and avoid null values for my form but there are some textboxes that I need to be 'optional'. I tried erasing the validation for province address and province contact in javascript to make it optional, but the problem is whenever I add the values in the database, an error message appears "Input string was not in a correct format". It's in C# This is my present code wherein the provincial address and provincial contact must only be optional:
I'm trying to write a query that will work in two situations. In some situations the value for AOL will be Null and in others there will be a vnumeric value. How do I get this procedure to accept Null if its passed in but also accept a numeric value if it's passed in?
I'm currently stuck with a problem with MVC2 RC and validation on a dropdownlist :
I have a page with some fields and a dropdownlist. The dropdownlist is not a mandatory field so I would like to save a null value into my property.
Unfortunately, I can't validate my page with a null selected value, because when I look into the modelstate just on the first line of my action, I've already an error telling me I must choose an item.
Is it normal working of dropdownlist validation or is it a bug ?
I need to construct a regular expression for the password textbox which shouldn't accept special characters($,@,!,etc).Even whitespaces,tabs. I tried the below this accepts special characters.
<asp:RegularExpressionValidator ID="RegEx" runat="server" ControlToValidate="Password" ErrorMessage="Password must be atleast 8 characters and include a number,alphabets upper case and lower case. "ToolTip="Password format is not correct" ValidationExpression="^(?=.{8})(?=.*d)(?=.*[a-z])(?=.*[A-Z]).*$"> </asp:RegularExpressionValidator>
how non English language input works with asp.net textboxes.
1. Can a regular asp.net textarea or a textbox accept text from languages other than English?
2. If yes, then how does the user enter non English language text
3. Is there a way to detect what language the user has entered text and make UI changes accordingly. (Ex: Make a button visible if non English text is entered)
4. Can non English text be stored in a varchar column in a SQL Server database? If not, how do I store this text?
I´m creating a user page to enable editing their profiles. When hitting the "update" button, it turns out that the field still contains the old value, although you´re looking at the new one, ie the text property of the textbox isn´t the value of the parameter which in fact gets its value from the text property.As far as I know I haven´t done anything I haven´t done before, both in apps and website?
I am working on a website. I am using C# 2008. I want to make a text box that accept only numbers & comma(,). for example-919981424199,78848817711,47171111747 or there may be a single number like 919981424199.
I was able to do one thing My text box only containing number by using this Regular Expression validation.in its property->Validation Expression i wrote "[0-9]+". This is working but now my requirement is to send bulk SMS & each number is separated by (,).
I have a remarks column which allows null values.. When i try to load a selected row from gridview
Which has nothing in remarks..I get  displayed in the textbox where i need to load the remarks.. I do not want  to be displayed.. If nothing is there in that remarks column textbox should be blank.. How do i do this?
I have a column in my database which contains null value. Now after retrieving value from database i want to store that value in my txtbox. I am getting
[DBTableFieldIsNullException: Field 'Title' is NULL] exception.
I have a gridview. In the rowupdating event, the txtbox returns null. I have enabled viewstate for the gridview. But still it does not work. I have made this in Kentico.
I have a .ascx file residing in another page which has a button on it. On click I run a select statement that accesses the textbox for a value.
However, it keeps returning a Null Exception Error. I am trying access the textbox and its text through
[Code]....
I also tried -[Code]....
I also tried -[Code]....
But none of them work. Please can someone advise me how I find the textbox and then access its text?I have looked round the forums / google and cant find a way of doing this!
problem is that if users enter text in TB and click on button it update columns data but if they don't enter any thing in textbox it enter space in Table like:
Id Behtop Service1 Service2
1 1111 Estate 2 2222 Home Home1
I want if users don't enter any thing in text box it insert in table "NULL".How I can do it?
I have one text box for accepting date. I want to store date column in database is null when the text box value is null and how to bind the this null value to text box when i retrieve.
How should i insert null values into a database. I have textbox1 and the textbox2 will convert the value out of textbox1, when i the time i click save and the textbox1 is empty i got an error, "Conversion from string "" to type 'Date' is not valid." i just want to insert null value if the textbox is empty.
I have a rather large formview that asks for a variety of input values (physical totals vs pos report totals). I have created vb code to calculate the differences and subtotals of various types prior to inserting the data so people can check for entry errors.
Its a closing reconciliation form. Here's the problem: If they forget to enter 0 in a field that doesn't have any totals, a big ugly error message displays. I would like to avoid this. I can tell them until I am blue in the face to remember to enter 0 and not leave any blank fields, but realistically its going to happen and I need to handle it in the programming.
I have been struggling to either default the values to zero to start with, replace a null textbox with 0 before the calculate runs...but I can't get anything to really work. What is the best way to handle this?
Here is the aspx page:
[Code]....
And the code behind page with working "Calculate" as long as fields are not left blank (I took out all the test code that made it not work at all)
[Code]....
Finally, the error message I am getting is the following:
[Code]....
I can't seem to find the right combination of programming to account for the "" string to be 0 so that it will add or subtract values in my calculate. I have my sql table setup with default values of 0 so if a field is left blank it will be entered into the database as 0 and not null. It is really just for my inserting of a reconciliation and the running of Calculate Totals to double check their work prior to inserting into the database.