Tuesday, July 14, 2009

Split value function SQL SERVER

Create FUNCTION [dbo].[SplitValues](@Str varchar(max),@Deliminator varchar(100)) returns @t table (numberval numeric(25), stringval varchar(100), DateVal datetime) as begin declare @i int; declare @c varchar(100); --set @Str = @Str + ',' set @Str = @Str + @Deliminator set @i = 1; set @c = ''; while @i <= len(@Str) begin --if substring(@Str,@i,1) = ',' if substring(@Str,@i,1) = @Deliminator begin insert into @t values (CASE WHEN isnumeric(@c)=1 THEN @c else Null END, rtrim(ltrim(@c)), CASE WHEN isdate(@c)=1 then @c else Null END) set @c = '' end else set @c = @c + substring(@Str,@i,1) set @i = @i +1 end return end ---------------- to call this function,use following... select * from dbo.SplitValues('1,2,3,4,5',',') ------------- this will return following results... items -------- 1 2 3 4 5

Tuesday, July 7, 2009

AutoCompleteExtender Control in the ASP.NET AJAX Toolkit

The AutoCompleteExtender Control in the ASP.NET AJAX Toolkit is an awesome way to offer suggestions to users in your ASP.NET Web Applications. It is also very easy to use. Create an ASP.NET AJAX Website and toss a TextBox and the AutoCompleteExtender Control on the page. Fill out the details of the control to specify the appropriate ServicePath and ServiceMethod of the web service that the AutoCompleteExtender Control will call. In this case I have a web service, called MyAutocompleteService, with a web method, called GetSuggestions. The control will start offering me suggestions once the first character is typed into the TextBox and ask for up <asp:TextBox ID="txtCountry" runat="server"></asp:TextBox> <ajaxToolkit:AutoCompleteExtender runat="server" ID="autoComplete1" TargetControlID="txtCountry" ServicePath="AutoComplete.asmx" ServiceMethod="GetCountriesList" MinimumPrefixLength="1" EnableCaching="true" /> The GetSuggestions WebMethod on the WebService echos back what was typed in an just appends up to 12 characters ( A- L ) to the text typed in. Note the addition of the [ScriptService] Attribute to use the WebService with AJAX. [WebMethod] public string[] GetCountriesList(string prefixText) { DataSet dtst = new DataSet(); SqlConnection sqlCon = new SqlConnection(ConfigurationManager.AppSettings["ConnectionString"]); string strSql = "SELECT CountryName FROM Tbl_Countries WHERE CountryName LIKE '"+ prefixText+"%' "; SqlCommand sqlComd = new SqlCommand(strSql,sqlCon); sqlCon.Open(); SqlDataAdapter sqlAdpt = new SqlDataAdapter(); sqlAdpt.SelectCommand = sqlComd; sqlAdpt.Fill(dtst); string[] cntName = new string[dtst.Tables[0].Rows.Count]; int i = 0; try { foreach (DataRow rdr in dtst.Tables[0].Rows) { cntName.SetValue(rdr["CountryName"].ToString(), i); i++; } } catch { } finally { sqlCon.Close(); } return cntName; }

Friday, July 3, 2009

Fetch Numer/AlphaNumeric value from Varchar table's Field In SQL SERVER

Following function keeps only numeric characters in string and removes all the other
character from the string. This is very handy function.

    Create FUNCTION dbo.GetNumberFromVarcharField
( 
 @string VARCHAR(max) -- varchar field value 
)
RETURNS VARCHAR(max) 
AS 
BEGIN 
DECLARE @IncorrectCharLoc SMALLINT 
SET @IncorrectCharLoc = PATINDEX('%[^0-9]%', @string)

WHILE @IncorrectCharLoc > 0 
BEGIN 
 SET @string = STUFF(@string, @IncorrectCharLoc,1, '') 
 SET @IncorrectCharLoc = PATINDEX('%[^0-9]%', @string) 
END 
SET @string = @string

RETURN @string 
END 

--- test 

SELECT dbo.GetNumberFromVarcharField('sadas????ASDa######10')

Following function keeps only Alphanumeric characters in string and removes all
the other character from the string. This is very handy function too.

    CREATE FUNCTION dbo.GetAlphaNumericString 
( 
 @string VARCHAR(8000) 
) 
RETURNS VARCHAR(8000) 
AS 
BEGIN

DECLARE @IncorrectCharLoc SMALLINT 
SET @IncorrectCharLoc = PATINDEX('%[^0-9A-Za-z]%',@string) 

WHILE @IncorrectCharLoc > 0 
BEGIN 
 SET @string = STUFF(@string, @IncorrectCharLoc,1, '') 
 SET @IncorrectCharLoc = PATINDEX('%[^0-9A-Za-z]%', @string) 
END 
SET @string = @string 

RETURN @string 
END 
GO 

-- Test 
SELECT dbo.GetAlphaNumericString('ABC”_I+{D[]}4|:e;””5,<.F>/?6')

Wednesday, July 1, 2009

True Random and Unique AlphaNumeric Number Generator

public string GetRandomUniqueAlphaNumericCode(int length, bool lowerCase) { int maxSize = 8; char[] chars = new char[62]; string a; a = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890"; chars = a.ToCharArray(); int size = maxSize; byte[] data = new byte[1]; RNGCryptoServiceProvider crypto = new RNGCryptoServiceProvider(); crypto.GetNonZeroBytes(data); size = maxSize; data = new byte[size]; crypto.GetNonZeroBytes(data); StringBuilder result = new StringBuilder(size); foreach (byte b in data) { result.Append(chars[b % (chars.Length - 1)]); } strCode = (result.ToString()).ToUpper(); bool flag = false; for (int i = 0; i < strCode.Length; i++) { if (char.IsDigit(strCode, i)) { flag = true; } } if (flag == false) { GetRandomUniqueAlphaNumericCode(); } return strCode; } here strCode is static class variable. this will generate random and unique alphanumeric string.

Forums for Microsoft .NET developers

Hi begginers to Microsoft.NET world, here a list of forums and educational sites where you can post your queries and get ur answers from professionals. this may help you to increase your knowledge and also help if u stuck with some issues…become a regular member(its free) so that source code access is easy ….and also contibute wen u have enough greymatter to solve complex issues of .NET. Comment on this post and add more forums which i might have missed …..

www.eggheadcafe.com

www.c-sharpcorner.com

www.vbdotnetheaven.com

www.dotnetheaven.com

forums.asp.net

www.codeproject.com

www.eggheadcafe.com

www.4guysfromrolla.com

www.aspalliance.com

www.devasp.net

DotNetCommunity

www.w3schools.com

Ideal SQL Query For Handling Error & Transcation in MS SQL

BEGIN TRY BEGIN TRAN --put queries here COMMIT; END TRY BEGIN CATCH IF @@TRANCOUNT>0 BEGIN SELECT @@ERROR,ERRO...