How to convert reader to DataTable in c#?

How to convert reader to DataTable in c#?

Load() and the second one, by manually converting a DataReader to a DataTable.

  1. Step 1: Create a new ASP.NET application.
  2. Step 2: Let us first see how to convert a DataReader to a DataTable using the easy way out.
  3. Step 3: The method shown in the Step 2 was the easy way out.
  4. Step 4: Call the two methods on the PageLoad()

How does DataReader work in C#?

ExecuteReader to retrieve rows from a data source. The DataReader provides an unbuffered stream of data that allows procedural logic to efficiently process results from a data source sequentially. The DataReader is a good choice when you’re retrieving large amounts of data because the data is not cached in memory.

What is ExecuteReader in C#?

The ExecuteReader() in C# SqlCommand Object sends the SQL statements to the Connection Object and populate a SqlDataReader Object based on the SQL statement. When the ExecuteReader method in SqlCommand Object execute , it will instantiate a SqlClient. SqlDataReader Object.

What is SQL Data Adapter?

SqlDataAdapter is used in conjunction with SqlConnection and SqlCommand to increase performance when connecting to a SQL Server database. If you are using SQL Server stored procedures to edit or delete data using a DataAdapter , make sure that you do not use SET NOCOUNT ON in the stored procedure definition.

How do I fix the Executereader Connection property has not been initialized?

That said, there are a few things you should correct in your code.

  1. Use using statements for connections. It will automatically close your connection. C# Copy Code.
  2. Also use using for readers for the same reason. C# Copy Code.
  3. Use paramterized SQL commands.

Which is faster DataReader or DataAdapter?

SqlDataReader has historically been significantly faster than SqlDataAdapter .

When should I use ExecuteReader?

ExecuteReader method is used to execute SQL queries or stored procedures that return a set of rows from the database.

  1. It is generally used with SELECT command where the query is required to fetch a set of data from the database.
  2. This method allows a way of reading a forward-only set of rows from the database.

What is the difference between SqlDataReader and SqlDataAdapter?

A SqlDataAdapter is typically used to fill a DataSet or DataTable and so you will have access to the data after your connection has been closed (disconnected access). The SqlDataReader is a fast forward-only and connected cursor which tends to be generally quicker than filling a DataSet/DataTable.

What is the difference between SqlCommand and SqlDataAdapter?

SqlAdapter is used to fill a dataset. SqlCommand can be used for any purpose you have in mind related to Create/Read/Update/Delete operations, stored procedure execution and much more.

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