In this article I will explain with an example, how to select data from database with
Stored Procedure using
Dapper library in ASP.Net using C# and VB.Net.
Installing Dapper package using Nuget
Database
I have made use of the following table Customers with the schema as follows.
I have already inserted few records in the table.
Note: You can download the database table SQL by clicking the download link below.
Stored Procedure
CREATE PROCEDURE [Customers_GetCustomers]
AS
BEGIN
SET NOCOUNT ON;
SELECT [CustomerId]
,[Name]
,[Country]
FROM [Customers]
END
HTML Markup
The following HTML Markup consists of:
GridView – For displaying data.
The GridView consists of three BoundFIeld columns.
<asp:GridView ID="gvCustomers" runat="server" AutoGenerateColumns="false">
<Columns>
<asp:BoundField DataField="CustomerId" HeaderText="Customer Id" />
<asp:BoundField DataField="Name" HeaderText="Name" />
<asp:BoundField DataField="Country" HeaderText="Country" />
</Columns>
</asp:GridView>
Namespaces
You will need to import the following namespaces.
C#
using Dapper;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
VB.Net
Imports Dapper
Imports System.Data
Imports System.Data.SqlClient
Imports System.Configuration
Selecting with Stored Procedure using Dapper in ASP.Net
Inside the
Page_Load event handler, the records are fetched from the
Customers Table of
SQL Server database using
ExecuteReader method of
Dapper library with
Stored Procedure and copied to
DataTable object using
Load method.
Finally, the DataTable is assigned to the DataSource property of GridView and DataBind method is called.
C#
protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
string constr = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
string spName = "Customers_GetCustomers";
using (SqlConnection con = new SqlConnection(constr))
{
using (IDataReader sdr = con.ExecuteReader(spName, commandType: CommandType.StoredProcedure))
{
using (DataTable dtCustomers = new DataTable())
{
dtCustomers.Load(sdr);
gvCustomers.DataSource = dtCustomers;
gvCustomers.DataBind();
}
}
}
}
}
VB.Net
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
If Not Me.IsPostBack Then
Dim constr As String = ConfigurationManager.ConnectionStrings("constr").ConnectionString
Dim spName As String = "Customers_GetCustomers"
Using con As SqlConnection = New SqlConnection(constr)
Using sdr As IDataReader = con.ExecuteReader(spName, commandType:=CommandType.StoredProcedure)
Using dtCustomers As DataTable = New DataTable()
dtCustomers.Load(sdr)
gvCustomers.DataSource = dtCustomers
gvCustomers.DataBind()
End Using
End Using
End Using
End If
End Sub
Screenshot
Downloads