ASP.NET SqlDataSource & DataSource |
ASP.NET SqlDataSource & DataSource ตัวอย่างการใช้งาน ASP.NET ในการเรียกใช้ DataSource ของ SqlDataSource
Framework : 2,3,4
Language Code :  VB.NET || C#
AspNetSqlDataSource.aspx
<%@ Page Language="VB" %>
<html>
<head>
<title>ThaiCreate.Com ASP.NET - SqlDataSource</title>
</head>
<body>
<form id="form1" runat="server">
<asp:GridView id="myGridView" runat="server" AutoGenerateColumns="False"
DataKeyNames="CustomerID" DataSourceid="myDSource" AllowSorting="True">
<Columns>
<asp:BoundField DataField="CustomerID" HeaderText="CustomerID" ReadOnly="True" SortExpression="CustomerID" />
<asp:BoundField DataField="Name" HeaderText="Name" SortExpression="Name" />
<asp:BoundField DataField="Email" HeaderText="Email" SortExpression="Email" />
<asp:BoundField DataField="CountryCode" HeaderText="CountryCode" SortExpression="CountryCode" />
<asp:BoundField DataField="Budget" HeaderText="Budget" SortExpression="Budget" />
<asp:BoundField DataField="Used" HeaderText="Used" SortExpression="Used" />
</Columns>
</asp:GridView>
<asp:SqlDataSource id="myDSource" runat="server"
ConnectionString="Data Source=localhost;Initial Catalog=mydatabase;User id=sa"
providerName="System.Data.SqlClient"
SelectCommand="SELECT * FROM [customer]">
</asp:SqlDataSource>
</form>
</body>
</html>
หรือจะเป็นตัวอย่างที่เขียนบน Visual Studio 2005,2008 (.NET Framework 2.0,3.5)
AspNetSqlDataSourceVS2005.aspx
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="AspNetSqlDataSourceVS2005.aspx.vb" Inherits="AspNetSqlDataSourceVS2005" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>ThaiCreate.Com ASP.NET - SqlDataSource</title>
</head>
<body>
<form id="form1" runat="server">
<asp:GridView id="myGridView" runat="server" AutoGenerateColumns="False"
ShowFooter="True"
DataKeyNames="CustomerID">
<Columns>
<asp:TemplateField HeaderText="CustomerID">
<ItemTemplate>
<asp:Label id="lblCustomerID" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.CustomerID") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox id="txtEditCustomerID" size="5" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.CustomerID") %>'></asp:TextBox>
</EditItemTemplate>
<FooterTemplate>
<asp:TextBox id="txtAddCustomerID" size="5" runat="server"></asp:TextBox>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Name">
<ItemTemplate>
<asp:Label id="lblName" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.Name") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox id="txtEditName" size="10" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.Name") %>'></asp:TextBox>
</EditItemTemplate>
<FooterTemplate>
<asp:TextBox id="txtAddName" size="10" runat="server"></asp:TextBox>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Email">
<ItemTemplate>
<asp:Label id="lblEmail" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.Email") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox id="txtEditEmail" size="20" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.Email") %>'></asp:TextBox>
</EditItemTemplate>
<FooterTemplate>
<asp:TextBox id="txtAddEmail" size="20" runat="server"></asp:TextBox>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="CountryCode">
<ItemTemplate>
<asp:Label id="lblCountryCode" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.CountryCode") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox id="txtEditCountryCode" size="2" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.CountryCode") %>'></asp:TextBox>
</EditItemTemplate>
<FooterTemplate>
<asp:TextBox id="txtAddCountryCode" size="2" runat="server"></asp:TextBox>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Budget">
<ItemTemplate>
<asp:Label id="lblBudget" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.Budget") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox id="txtEditBudget" size="6" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.Budget") %>'></asp:TextBox>
</EditItemTemplate>
<FooterTemplate>
<asp:TextBox id="txtAddBudget" size="6" runat="server"></asp:TextBox>
</FooterTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Used">
<ItemTemplate>
<asp:Label id="lblUsed" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.Used") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox id="txtEditUsed" size="6" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.Used") %>'></asp:TextBox>
</EditItemTemplate>
<FooterTemplate>
<asp:TextBox id="txtAddUsed" size="6" runat="server"></asp:TextBox>
<asp:Button id="btnAdd" runat="server" Text="Add" CommandName="Add"></asp:Button>
</FooterTemplate>
</asp:TemplateField>
<asp:CommandField ShowEditButton="True" CancelText="Cancel" DeleteText="Delete" EditText="Edit" UpdateText="Update" HeaderText="Modify" />
<asp:CommandField ShowDeleteButton="True" HeaderText="Delete" />
</Columns>
</asp:GridView>
</form>
</body>
</html>
AspNetSqlDataSourceVS2005.aspx.vb
Partial Class AspNetSqlDataSourceVS2005
Inherits System.Web.UI.Page
Dim myDSource As SqlDataSource
Dim strSQL As String
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
myDSource = New SqlDataSource()
myDSource.ConnectionString = System.Configuration.ConfigurationSettings.AppSettings("ConnectionString")
If Not Page.IsPostBack() Then
BindData()
End If
End Sub
Private Sub BindData()
With myDSource
.SelectCommand = "SELECT * FROM [customer]"
End With
'*** BindData to GridView ***'
myGridView.DataSource = myDSource
myGridView.DataBind()
myDSource = Nothing
End Sub
Protected Sub myGridView_RowCancelingEdit(ByVal sender As Object, ByVal e As GridViewCancelEditEventArgs) Handles myGridView.RowCancelingEdit
myGridView.EditIndex = -1
myGridView.ShowFooter = True
BindData()
End Sub
Protected Sub myGridView_RowCommand(ByVal sender As Object, ByVal e As GridViewCommandEventArgs) Handles myGridView.RowCommand
If e.CommandName = "Add" Then
'*** CustomerID ***'
Dim txtCustomerID As TextBox = CType(myGridView.FooterRow.FindControl("txtAddCustomerID"), TextBox)
'*** Email ***'
Dim txtName As TextBox = CType(myGridView.FooterRow.FindControl("txtAddName"), TextBox)
'*** Name ***'
Dim txtEmail As TextBox = CType(myGridView.FooterRow.FindControl("txtAddEmail"), TextBox)
'*** CountryCode ***'
Dim txtCountryCode As TextBox = CType(myGridView.FooterRow.FindControl("txtAddCountryCode"), TextBox)
'*** Budget ***'
Dim txtBudget As TextBox = CType(myGridView.FooterRow.FindControl("txtAddBudget"), TextBox)
'*** Used ***'
Dim txtUsed As TextBox = CType(myGridView.FooterRow.FindControl("txtAddUsed"), TextBox)
strSQL = "INSERT INTO customer (CustomerID,Name,Email,CountryCode,Budget,Used) " & _
" VALUES ('" & txtCustomerID.Text & "','" & txtName.Text & "','" & txtEmail.Text & "' " & _
" ,'" & txtCountryCode.Text & "','" & txtBudget.Text & "','" & txtUsed.Text & "') "
With myDSource
.InsertCommand = strSQL
.InsertCommandType = SqlDataSourceCommandType.Text
.Insert()
End With
BindData()
End If
End Sub
Protected Sub myGridView_RowDeleting(ByVal sender As Object, ByVal e As GridViewDeleteEventArgs) Handles myGridView.RowDeleting
strSQL = "DELETE FROM customer WHERE CustomerID = '" & myGridView.DataKeys.Item(e.RowIndex).Value & "'"
With myDSource
.DeleteCommand = strSQL
.DeleteCommandType = SqlDataSourceCommandType.Text
.Delete()
End With
myGridView.EditIndex = -1
BindData()
End Sub
Protected Sub myGridView_RowEditing(ByVal sender As Object, ByVal e As GridViewEditEventArgs) Handles myGridView.RowEditing
myGridView.EditIndex = e.NewEditIndex
myGridView.ShowFooter = False
BindData()
End Sub
Protected Sub myGridView_RowUpdating(ByVal sender As Object, ByVal e As GridViewUpdateEventArgs) Handles myGridView.RowUpdating
'*** CustomerID ***'
Dim txtCustomerID As TextBox = CType(myGridView.Rows(e.RowIndex).FindControl("txtEditCustomerID"), TextBox)
'*** Email ***'
Dim txtName As TextBox = CType(myGridView.Rows(e.RowIndex).FindControl("txtEditName"), TextBox)
'*** Name ***'
Dim txtEmail As TextBox = CType(myGridView.Rows(e.RowIndex).FindControl("txtEditEmail"), TextBox)
'*** CountryCode ***'
Dim txtCountryCode As TextBox = CType(myGridView.Rows(e.RowIndex).FindControl("txtEditCountryCode"), TextBox)
'*** Budget ***'
Dim txtBudget As TextBox = CType(myGridView.Rows(e.RowIndex).FindControl("txtEditBudget"), TextBox)
'*** Used ***'
Dim txtUsed As TextBox = CType(myGridView.Rows(e.RowIndex).FindControl("txtEditUsed"), TextBox)
strSQL = "UPDATE customer SET CustomerID = '" & txtCustomerID.Text & "' " & _
" ,Name = '" & txtName.Text & "' " & _
" ,Email = '" & txtEmail.Text & "' " & _
" ,CountryCode = '" & txtCountryCode.Text & "' " & _
" ,Budget = '" & txtBudget.Text & "' " & _
" ,Used = '" & txtUsed.Text & "' " & _
" WHERE CustomerID = '" & myGridView.DataKeys.Item(e.RowIndex).Value & "'"
With myDSource
.UpdateCommand = strSQL
.UpdateCommandType = SqlDataSourceCommandType.Text
.Update()
End With
myGridView.EditIndex = -1
myGridView.ShowFooter = True
BindData()
End Sub
End Class
Screenshot
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