.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

Check for a substring in a string

Posted By:      Posted Date: April 10, 2011    Points: 0   Category :Windows Application

I have a string US\jim.hover  How to check if US\ exist in that string ?

View Complete Post

More Related Resource Links

how to check the length of a string value in jquery?



I want to modify my userAvailabilityCheck code and want to add the code that this userAvailabilityCheck function does not fire If the textbox is null or having character less than 6 but display related error message.

Below is my code-

 var $j = jQuery.noConflict(); //set no conflict so you can use with MS AJAX.
        $j(document).ready(function() {
            // Find the ClientID of your TextBox UserName inside Create User Wizard
        var UserNameClientID = '<%= UserName.ClientID %>';
            // Make the AJAX call to the WebMethod when the textbox loses focus
            $j("#" + UserNameClientID).blur(function() {
             var userName = $j("#" + '<%= UserName.ClientID %>').val();

            if ($('#UserName').is(':empty'))
                $('#username-availability').html("<label>Username can't be empty!</label>");
            else if (userName.length() <= 6)
                $('#username-availability').html(" <label>Username must be at least 6 characters!</label>");
                        type: "POST",
                        url: "Register.aspx/Ch

Check the if SSAS Roles property is used in excel connection string before returning the values



We are using Excel 2007 to connect to SSAS cubes. We have many roles for a user and all having different permission including different VISUAL TOTAL setting. We want to restrict the user so that he cannot see anything if he is not using the ROLES property in the excel connection string.

At the run time I want to know if the user who is using excel has used ROLES property or not.

Any help will be appreciated

Mr myName

Using a CompareValidator to check input is a valid date

The CompareValidator can do more than just compare two controls. You can also compare it against several of the main .net data types such as Date, Integer, Double and Currency.

To do this you would set Operator="DataTypeCheck" and instead of setting the ControlToCompare or ValueToCompare attributes as you normally would you use the Type="Date" (or any of the data types I have listed above).

Check All with JQuery and a Asp.Net GridView

Display a Grid on the screen with a checkbox in each row. At the bottom of the page have "Check All" button.

Typically if I need to do anything interesting I use a template column. So my GridView will look like the one below (most other columns removed for readability). The only interesting point to note is the CssClass="ApprovalCheckBox" in the CheckBox ItemTemplate.

How to Encrypt Query String Parameters in ASP.NET

Encrypt Query String Parameters in ASP.NET.u can send secure data one page another page u can also use query string to encrypt

Connestion string create any database server

This links important to how to create connection string to any data base sever.

SQL Connection String

We can learn or know how can we connect the database from our .net. This will help for freshers or .NET beginners!

Built-in Functions - String Functions

String functions let you extract various portions of character strings, change the case of strings, concatenate and reverse strings and perform many other types of manipulations. All built-in string functions are deterministic with the exception of CHARINDEX and PATINDEX

abstract away the source of the connection string using a class with a static property.

ASP.NET provides a configuration system we can use to keep our applications flexible at runtime. In this article we will examine some tips and best practices for using the configuration system for the best results.

The element of a web.config file is a place to store connection strings, server names, file paths, and other miscellaneous settings needed by an application to perform work. The items inside appSettings are items that need to be configurable depending upon the environment, for instance, any database connection strings will change as you move your application from a testing and staging server into production.

Let's abstract away the source of the connection string using a class with a static property.

check box control


Hi ,

I have a three check box in my web form ,i need to choose only one check box, if i choose one check box

another 2 check box automatically unchecked

can i use jquery for check box

highlight string


i am looking for a function that takes two string parameters 

str1 = "hello how are you today mr john"

str2 = "how today"

and in return it shoud highlight the words "how" and "today".

Any ides? I prefer if its possible using reg expression...Thanks

I thought this would be simple... Trying to create a login does an ajax check before submit


I have the standard .net login control that is working.  (Still learning .net after 15yrs of classic)

What I want to do is OnButtonClick run a javascript function (to do an ajax call to the db to check if login is valid or not) and if it returns true, then submit the form normally, else don't submit. The piece that I can't figure out, is how to correctly override the default click even to hit my JS routine and then submit the form properly afterwards.

Thanks ahead of time

Could some one tell me whats the Problem with this String Manipulation ??? C#.net



I store some values from code behind to a label which is Hidden !

<asp:Label ID="lbl_Hidden" runat="server" Visible = "false"></asp:Label>

and at the page load event i retrieve the value of the label & assign it to a string !

stringvalue = lbl_Hidden.Text;

Now i dont know why this manipulation does'nt work !

I've a character 'A' in the string and i'm unable to replace it with a space !

stringvalue.Replace(A, " ");

Wot do u think abt it ????

extract picture data from a string


dears,advance thanks.can anybdy help to solve my problem which is describing below.

Example- %%D1,100,0,0004[data...][0d0a]

Head - %%D1
Amount of data package -100
The data package No. - 0
Data Length -1024 (0004 (low bit in front, high bit in back) 0004= 0x0400=1024;)

data- Original Picture data -1024(maximum)
Tail -0x0d0a
Data in hex

from the above example i want to extract picture data and need to store in to the sql table.sql table columname is image and datatype is also image.after that i wanted to display this image column to an aspx page.

expecting help asap.

how to check a textbox value in jquery?



I want to perform some action when an asp.net textbox value length is greater than 1 character. And for this I wanted to know how to write this check in jquery?

I have created a check like below-

if ($('[id=txtUserInput]').val().length > 2)
{ do some work...} 

But its giving me the following error

$("[id=txtUserInput]").val() is undefined

Can anybody let me know the right way of doing this?



How to check for null/empty strings on dynamic objects?


What is the proper way to check for null or empty strings on dynamic objects? This is the only solution I've found so far:

if (admin.PasswordHash.GetType() == typeof(DBNull) || admin.PasswordHash == string.Empty)

If the field is null, the object returned is DBNull.Value, but if the field is empty string, it's return as a System.String object. This makes it impossible to do regular "admin.PasswordHash == DBNull.Value" check, as that will fail whenever the field has been set to empty string. Is my example the right (and only) way to go?

connection string question from a newbie


when publishing  in the webmatrix dialogue it asks for "destination connection string" for my "database.mdf"

I was not sure what it was so I pasted this from my web.config file :

Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\database.mdf;Integrated Security=True;User Instance=True

it all published ok, but wont run, so I guess it has somthing to do with this connection string or some kind of configuration issue.

My question is this, What should go in the field for "Destination connection string"

ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend