VB.NET & System.Data.Odbc - DataSet() - How to learn Connector/NET ADO.NET component System.Data.Odbc namespace is the .NET Framework Data Provider for ODBC data source, Create a new DataSet and fill it using the DataAdapter from ODBC.
ShotDev Focus:
- VB.NET & System.Data.Odbc - DataSet()
Example
DataSet1.aspx
<%@ Import Namespace="System.Data"%>
<%@ Import Namespace="System.Data.Odbc"%>
<%@ Page Language="VB" %>
<script runat="server">
Sub Page_Load(sender As Object, e As EventArgs)
BindData()
End Sub
Sub BindData()
'*** DataSet ***'
Dim ds As DataSet
ds = CreateDataSet()
myRepeater.DataSource = ds.Tables(0).DefaultView
myRepeater.DataBind()
End Sub
'*** DataSet ***'
Function CreateDataSet() As DataSet
Dim objConn As New System.Data.Odbc.OdbcConnection
Dim objCmd As New System.Data.Odbc.OdbcCommand
Dim dtAdapter As New System.Data.Odbc.OdbcDataAdapter
Dim ds As New DataSet
Dim strConnString,strSQL As String
strConnString = "DSN=mydatabase;UID=;PWD=;"
strSQL = "SELECT * FROM customer"
objConn.ConnectionString = strConnString
With objCmd
.Connection = objConn
.CommandText = strSQL
.CommandType = CommandType.Text
End With
dtAdapter.SelectCommand = objCmd
dtAdapter.Fill(ds)
dtAdapter = Nothing
objConn.Close()
objConn = Nothing
Return ds '*** Return DataSet ***'
End Function
</script>
<html>
<head>
<title>ShotDev.Com Tutorial</title>
</head>
<body>
<form id="form1" runat="server">
<asp:Repeater id="myRepeater" runat="server">
<HeaderTemplate>
<table border="1">
<tr>
<th>CustomerID</th>
<th>Name</th>
<th>Email</th>
<th>CountryCode</th>
<th>Budget</th>
<th>Used</th>
</tr>
</HeaderTemplate>
<ItemTemplate>
<tr>
<td align="center"><%#Container.DataItem("CustomerID") %></td>
<td><%#Container.DataItem("Name") %></td>
<td><%#Container.DataItem("Email") %></td>
<td align="center"><%#Container.DataItem("CountryCode") %></td>
<td align="right"><%#Container.DataItem("Budget") %></td>
<td align="right"><%#Container.DataItem("Used") %></td>
</tr>
</ItemTemplate>
</asp:Repeater>
</form>
</body>
</html>
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VB.NET & System.Data.Odbc - DataSet() - How to create a multiple table in DataSet .
ShotDev Focus:
- VB.NET & System.Data.Odbc - DataSet()
Example
DataSet2.aspx
<%@ Import Namespace="System.Data"%> <%@ Import Namespace="System.Data.Odbc"%> <%@ Page Language="VB" %> <script runat="server"> Sub Page_Load(sender As Object, e As EventArgs) BindData() End Sub Sub BindData() '*** DataSet From DataSet ***' Dim ds As DataSet ds = CreateDataSet() Dim i As Integer Dim dg As DataGrid Dim lbl As Label For i = 0 To ds.Tables.Count - 1 dg = New DataGrid With dg .DataSource = ds.Tables(i).DefaultView .AutoGenerateColumns = True .DataBind() End With lbl = New Label lbl.Text = "<br><b>" & ds.Tables(i).ToString & "</b><br>" Me.lblText.Controls.Add(lbl) Me.lblText.Controls.Add(dg) dg = Nothing Next End Sub '*** DataSet ***' Function CreateDataSet() As DataSet Dim objConn As New System.Data.Odbc.OdbcConnection Dim objCmd As New System.Data.Odbc.OdbcCommand Dim dtAdapter As New System.Data.Odbc.OdbcDataAdapter Dim ds As New DataSet Dim i As Integer Dim strConnString,strSQL As String strConnString = "DSN=mydatabase;UID=;PWD=;" Dim TablesName(2) As String TablesName(0) = "customer" TablesName(1) = "audit" TablesName(2) = "country" For i = 0 To TablesName.GetUpperBound(0) strSQL = "SELECT * FROM " & TablesName(i) & " " objConn.ConnectionString = strConnString With objCmd .Connection = objConn .CommandText = strSQL .CommandType = CommandType.Text End With dtAdapter.SelectCommand = objCmd dtAdapter.Fill(ds,TablesName(i)) Next dtAdapter = Nothing objConn.Close() objConn = Nothing Return ds '*** Return DataSet ***' End Function </script> <html> <head> <title>ShotDev.Com Tutorial</title> </head> <body> <form id="form1" runat="server"> <asp:Label id="lblText" runat="Server"></asp:Label> </form> </body> </html>
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Download this script.
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VB.NET & System.Data.Odbc - DataSet() - How to use DataSet and adding new Row to DataSet.
ShotDev Focus:
- VB.NET & System.Data.Odbc - DataSet()
Example
DataSet3.aspx
<%@ Import Namespace="System.Data"%>
<%@ Import Namespace="System.Data.Odbc"%>
<%@ Page Language="VB" %>
<script runat="server">
Sub Page_Load(sender As Object, e As EventArgs)
BindData()
End Sub
Sub BindData()
'*** DataSet ***'
Dim ds As DataSet
ds = CreateDataSet()
'*** Adding Rows to DataSet ***'
Dim dr As DataRow
dr = ds.Tables("customer").NewRow()
dr.Item("CustomerID") = "C005"
dr.Item("Name") = "Weerachai Nukitram"
dr.Item("Email") = "webmaster@shotdev.com"
dr.Item("CountryCode") = "TH"
dr.Item("Budget") = "2000000"
dr.Item("Used") = "100000"
ds.Tables("customer").NewRow()
ds.Tables("customer").Rows.Add(dr)
'*** Adding Rows to DataSet ***'
Me.myGridView.DataSource = ds.Tables(0).DefaultView
Me.myGridView.DataBind()
End Sub
'*** DataSet ***'
Function CreateDataSet() As DataSet
Dim objConn As New System.Data.Odbc.OdbcConnection
Dim objCmd As New System.Data.Odbc.OdbcCommand
Dim dtAdapter As New System.Data.Odbc.OdbcDataAdapter
Dim ds As New DataSet
Dim strConnString,strSQL As String
strConnString = "DSN=mydatabase;UID=;PWD=;"
strSQL = "SELECT * FROM customer "
objConn.ConnectionString = strConnString
With objCmd
.Connection = objConn
.CommandText = strSQL
.CommandType = CommandType.Text
End With
dtAdapter.SelectCommand = objCmd
dtAdapter.Fill(ds,"customer")
dtAdapter = Nothing
objConn.Close()
objConn = Nothing
Return ds '*** Return DataSet ***'
End Function
</script>
<html>
<head>
<title>ShotDev.Com Tutorial</title>
</head>
<body>
<form id="form1" runat="server">
<asp:GridView id="myGridView" runat="server"></asp:GridView>
</form>
</body>
</html>
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