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How does the lifecycle of Windows services differ from Standard EXE?
How does the lifecycle of Windows services differ from Standard EXE? Windows services lifecycle is managed by “Service Control Manager” which is responsible for starting and stopping the service and the applications do not have a user interface or produce any visual output, but “Standard e...
2014-02-28, 1853👍, 0💬

How do you call and execute a Stored Procedure in.NET? Give an example.
How do you call and execute a Stored Procedure in.NET? Give an example. Answer1 ds1=new DataSet(); sqlCon1=new SqlConnection(connectionstring );String strCom1=”byroyalty”; sqlCom1=new SqlCommand(strCom1,sqlCon1); sqlCom1.CommandType=CommandTyp e.StoredProcedure;sqlDa1=new SqlDataAdapter(sqlCom...
2014-09-15, 1852👍, 0💬

State True or False: Static method cannot be overridden: * True or * False
State True or False: Static method cannot be overridden: * True or * False True
2014-06-20, 1852👍, 0💬

I thought that ANSI function prototypes were supposed to guard against argument type mismatches.
I thought that ANSI function prototypes were supposed to guard against argument type mismatches. When a function accepts a variable number of arguments, its prototype does not (and cannot) provide any information about the number and types of those variable arguments. Therefore, the usual protection...
2015-11-06, 1849👍, 0💬

How do we upgrade SQL Server 7.0 to 2000?
How do we upgrade SQL Server 7.0 to 2000? Run the installation of the SQL Server 2000 In the Existing Installation dialog box, click Upgrade your existing installation, and then click Next. In the Upgrade dialog box, you are prompted as to whether you want to proceed with the requested upgrade. Clic...
2014-10-31, 1849👍, 0💬

What are good ADO.NET object(s) to replace the ADO Recordset object?
What are good ADO.NET object(s) to replace the ADO Recordset object? The differences includes In ADO, the in-memory representation of data is the recordset. In ADO.net, it is the dataset A recordset looks like a single table in ADO In contrast, a dataset is a collection of one or more tables in ADO....
2014-09-08, 1846👍, 0💬

Why doesnt the call scanf work?
Why doesn't the call scanf("%d", i) work? The arguments you pass to scanf must always be pointers: for each value converted, scanf ``returns'' it by filling in one of the locations you've passed pointers to. To fix the fragment above, change it to scanf("%d", &i) .
2015-11-02, 1842👍, 0💬

What is Duff's Device?
What is Duff's Device? It's a devastatingly devious way of unrolling a loop, devised by Tom Duff while he was at Lucasfilm. In its ``classic'' form, it was used to copy bytes, and looked like this: register n = (count + 7) / 8; /* count > 0 assumed */ switch (count % 8) { case 0: do { *to = *from++;...
2015-01-02, 1842👍, 0💬

How does you handle this COM components developed in other programming languages in.NET?
How does you handle this COM components developed in other programming languages in.NET? Answer1: add the component in add reference window, click .NETCOM tab. Answer1: While adding the refferences we can handle the COM components in other .Net programming languages.
2014-11-12, 1839👍, 0💬

Difference between Class And Interface
Difference between Class And Interface Class is logical representation of object. It is collection of data and related sub procedures with defination. Interface is also a class containg methods which is not having any definations. Class does not support multiple inheritance. But interface can suppor...
2013-12-04, 1836👍, 0💬

What should one do to make class serializable?
What should one do to make class serializable? Answers1: To make a class serializable is to mark it with the Serializable attribute as follows. [Serializable] public class MyObject { public int n1 = 0; public int n2 = 0; public String str = null; }
2013-12-26, 1835👍, 0💬

Is there any inbuilt paging (for example shoping cart, which will show next 10 records without refreshing) in ASP? How will you
Is there any inbuilt paging (for example shoping cart, which will show next 10 records without refreshing) in ASP? How will you do pating? Use DataGrid control which has in-built paging features for the purpose.
2014-09-26, 1833👍, 0💬

Difference Abstract class and Interface
Difference Abstract class and Interface Abstract class: This class has abstract methods (no body). This class cannot be instantiated. One needs to provide the implementation of the methods by overriding them in the derived class. No Multiple Inheritance. Interfaces: Interface class contains all abst...
2013-12-03, 1826👍, 0💬

What are the different methods to access Database in .NET ?
What are the different methods to access Database in .NET ? What are the different methods to access Database in .NET ? * OleDB,ODBC,SQLClient * OleDB, JDBC, SQLServer * ODBC-JDBC, DataSet, SQLClient * Datasource, DataSet, DSN OleDB,ODBC,SQLClient
2014-07-17, 1825👍, 0💬

What class does Icon derive from? Isn’t it just a Bitmap with a wrapper name around it?
What class does Icon derive from? Isn’t it just a Bitmap with a wrapper name around it? No, Icon lives in System.Drawing namespace. It’s not a Bitmap by default, and is treated separately by .NET. However, you can use ToBitmap method to get a valid Bitmap object from a valid Icon object.
2013-11-22, 1824👍, 0💬

How can I use a macro argument inside a string literal in the macro expansion?
How can I use a macro argument inside a string literal in the macro expansion? Some pre-ANSI compilers/preprocessors interpreted macro definitions like #define TRACE(var, fmt) printf("TRACE: var = fmt\n", var) such that invocations like TRACE(i, %d); were expanded as printf("TRACE: i = %d\n", i); In...
2016-01-22, 1823👍, 0💬

What property must you set, and what method must you call in your code, in order to bind the data from some data source to the R
What property must you set, and what method must you call in your code, in order to bind the data from some data source to the Repeater control? You must set the DataMember property which Gets or sets the specific table in the DataSource to bind to the control and the DataBind method to bind data fr...
2014-01-29, 1823👍, 0💬

How do you find the error, how can you know the number of rows affected by last SQL Statement?
How do you find the error, how can you know the number of rows affected by last SQL Statement? Answer1 @@errors-&gt;give the last error occured in the current DB. Ans. select @@rowcount Answer2. Use @@ERROR which returns the error number for the last Transact-SQL statement executed fro knowing t...
2014-11-03, 1819👍, 0💬

What tags do you need to add within the asp:datagrid tags to bind columns manually?
What tags do you need to add within the asp:datagrid tags to bind columns manually? Column tag and an ASP:databound tag.
2014-02-07, 1816👍, 0💬

If I have a char * variable pointing to the name of a function ...
If I have a char * variable pointing to the name of a function, how can I call that function? Code like extern int func(int, int); char *funcname = "func"; int r = (*funcname)(1, 2); or r = (*(int (*)(int, int))funcname)(1, 2); doesn't seem to work. By the time a program is running, information abou...
2015-02-20, 1814👍, 0💬

How can I open files mentioned on the command line, and parse option flags?
How can I open files mentioned on the command line, and parse option flags? Here is a skeleton which implements a traditional Unix-style argv parse, handling option flags beginning with -, and optional filenames. (The two flags accepted by this example are -a and -b; -b takes an argument.) #include ...
2015-03-11, 1809👍, 0💬

Why does the ANSI Standard place limits on the length and case-significance of external identifiers?
Why does the ANSI Standard place limits on the length and case-significance of external identifiers? The problem is linkers which are under control of neither the ANSI/ISO Standard nor the C compiler developers on the systems which have them. The limitation is only that identifiers be significant in...
2015-12-04, 1806👍, 0💬

What doesu mean by .NET framework?
What doesu mean by .NET framework? The .NET Framework is an environment for building, deploying, and running Web Services and other applications. It consists of three main parts: the Common Language Runtime, the Framework classes, and ASP.NET
2013-12-05, 1804👍, 0💬

Why doesnt this code work?
Why doesn't this code: double d; scanf("%f", &amp;d); work? Unlike printf, scanf uses %lf for values of type double, and %f for float.%f tells scanf to expect a pointer-to-float, not the pointer-to-double you gave it. Either use %lf, or declare the receiving variable as a float.
2015-10-30, 1802👍, 0💬

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