SQL DAtaReader and VB

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Hi how can i use the SqlDataReader to read all the columns within the table seraching by id here is part of my code

VB

selectCommand.CommandText = "SELECT * FROM tblEjemplo WHERE COOP_ID = @COOP_ID"

    Try
        conn.Open()

    Catch ex As SqlException
        MessageBox.Show(ex.Message)

Posted 19-Mar-13 8:10am

JSRPreguntas

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Comments

Sergey Alexandrovich Kryukov 19-Mar-13 14:16pm

What prevents you from reading DataReader documentation?
—SA

2 solutions

Solution 2

Hi,

You can Try below code, where i fill the gridview by using DataAdapter.

1. define connection string in web.config file.

XML

<connectionstrings>
<add name="ConnectionStringName" connectionstring="Data Source=abc;Initial Catalog=xyz;User ID=mno;Password=pqr" />
</connectionstrings>

2. Import some namespace.

Imports System.Data
Imports System.Data.SqlClient
Imports System.Configuration

3. Now call function BindGridView(COOP_ID) to fill GridView by using DataAdapter, where i am passing COOP_ID = 1 you can pass as per your need.

VB

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        GridView1.DataSource = BindGridView(1)
        GridView1.DataBind()
    End Sub

    Private Function BindGridView(ByVal COOP_ID As Integer) As DataTable
        Dim connstr = ConfigurationManager.ConnectionStrings("ConnectionStringName").ConnectionString
        Dim con As SqlConnection = New SqlConnection(connstr)
        Dim da As SqlDataAdapter = New SqlDataAdapter("SELECT * FROM tblEjemplo WHERE COOP_ID = " + COOP_ID + "", con)
        Dim dt As New DataTable()
        da.Fill(dt)
        Return dt
    End Function

Posted 20-Mar-13 23:10pm

VedPrakash(Developer)

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Maciej Los · Accepted Answer · 2013-03-19T08:21:00

Solution 1

Start here: Overview of ADO.NET[^] then read this: Building ADO.NET Applications[^]

Other useful links: http://msdn.microsoft.com/en-us/library/dw70f090%28v=vs.71%29.aspx[^]
http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlparametercollection.addwithvalue(v=vs.85).aspx[^]

Posted 19-Mar-13 8:21am

Maciej Los