Ho un dropdownlist e due textbox.
Il dropdownlist è popolato da un database.
Quando apro la pagina il ddl mi da il primo id del db
e i due textbox i valori corrispondenti alla prima riga del db.
Come faccio a far cambiare quei valori in base al valore selezionato nella ddl visto che quando cambio il valore del ddl e due campi mi rimangono uguali?
Nibbles
si dovrebbe vedere il codice per darti una risposta precisa, hai messo il controllo sul postback della pagina?
Questo è il codice della mia pagina:
<%@ Page Language="C#" ContentType="text/html" ResponseEncoding="iso-8859-1" %>
<%@ Register TagPrefix="MM" Namespace="DreamweaverCtrls" Assembly="DreamweaverCtrls,version=1.0.0.0,publicK eyToken=836f606ede05d46a,culture=neutral" %>
<MM:Insert
runat="server"
CommandText='<%# "INSERT INTO News (Data, News) VALUES (?, ?)" %>'
ConnectionString='<%# System.Configuration.ConfigurationSettings.AppSett ings["MM_CONNECTION_STRING_nibblesConnection"] %>'
DatabaseType='<%# System.Configuration.ConfigurationSettings.AppSett ings["MM_CONNECTION_DATABASETYPE_nibblesConnection"] %>'
Expression='<%# Request.Form["MM_insert"] == "form1" %>'
CreateDataSet="false"
SuccessURL='<%# "default.aspx" %>'
Debug="true"
>
<Parameters>
<Parameter Name="@Data" Value='<%# ((Request.Form["Data"] != null) && (Request.Form["Data"].Length > 0)) ? Request.Form["Data"] : "" %>' Type="WChar" />
<Parameter Name="@News" Value='<%# ((Request.Form["News"] != null) && (Request.Form["News"].Length > 0)) ? Request.Form["News"] : "" %>' Type="WChar" />
</Parameters>
</MM:Insert>
<MM:Update
runat="server"
CommandText='<%# "UPDATE News SET News=?, Data=? WHERE ID=?" %>'
ConnectionString='<%# System.Configuration.ConfigurationSettings.AppSett ings["MM_CONNECTION_STRING_nibblesConnection"] %>'
DatabaseType='<%# System.Configuration.ConfigurationSettings.AppSett ings["MM_CONNECTION_DATABASETYPE_nibblesConnection"] %>'
Expression='<%# Request.Form["MM_update"] == "form1" %>'
CreateDataSet="false"
SuccessURL='<%# "default.aspx" %>'
Debug="true"
>
<Parameters>
<Parameter Name="@News" Value='<%# ((Request.Form["News2"] != null) && (Request.Form["News2"].Length > 0)) ? Request.Form["News2"] : "" %>' Type="WChar" />
<Parameter Name="@Data" Value='<%# ((Request.Form["Data2"] != null) && (Request.Form["Data2"].Length > 0)) ? Request.Form["Data2"] : "" %>' Type="WChar" />
<Parameter Name="@ID" Value='<%# Request.Form["theID2"] %>' Type="Integer" />
</Parameters>
</MM:Update>
<MMataSet
id="DataSet1"
runat="Server"
IsStoredProcedure="false"
ConnectionString='<%# System.Configuration.ConfigurationSettings.AppSett ings["MM_CONNECTION_STRING_nibblesConnection"] %>'
DatabaseType='<%# System.Configuration.ConfigurationSettings.AppSett ings["MM_CONNECTION_DATABASETYPE_nibblesConnection"] %>'
CommandText='<%# "SELECT * FROM News ORDER BY ID DESC" %>'
Debug="true"
> </MM
<MM:PageBind runat="server" PostBackBind="true" />
<html>
<head>
<title>Nibbles Web Site - Area Riservata</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<link href="nibblesstyle.css" rel="stylesheet" type="text/css">
<script runat="server">
//Controllo della variabile di sessione per l'autentificazione
protected void Page_Load(Object Src, EventArgs E){
if (String.Equals(Session["login"].ToString(), "false"))
Response.Redirect("default.aspx");
}
//Gestione del LogOut
public void logOut(Object Src, EventArgs E){
Session.Abandon();
Response.Redirect("default.aspx");
}
</script>
</head>
<body bgcolor="#FFFFFF" text="#000066" link="#000066" vlink="#000066" alink="#000066" leftmargin="0" topmargin="4" marginwidth="0" marginheight="0">
<form method="post" name="form1" runat="server">
<table width="770" height="300" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td width="144" valign="top" bgcolor="#DCFFB9">
</td>
<td width="4" background="Immagini/Filetto colorato2.jpg"></td>
<td width="474" valign="top">
<table width="474" border="0" cellpadding="4" cellspacing="0">
<tr>
<td width="458" colspan="2">
<table width="200" border="0" cellspacing="2" cellpadding="0">
<tr>
<td width="20">[img]Immagini/Permesso.jpg[/img]</td>
<td class="normaleGrassettoParagrafo">AREA RISERVATA</td>
</tr>
</table></td>
</tr>
<tr>
<td colspan="2">
<table width="250" border="0" align="center" cellpadding="2" cellspacing="0">
<tr>
<td class="normaleGrassetto">Inserimento di una nuova news</td>
</tr>
</table>
<table width="250" border="0" align="center" cellpadding="2" cellspacing="0">
<tr>
<td width="40" align="left" valign="middle" nowrap class="normaleGrassetto">Data:</td>
<td align="right"> <asp:textbox BorderColor="#000066" BorderWidth="1" CssClass="normaleGrassetto" Height="20" id="Data" runat="server" TextMode="SingleLine" Width="200" /> </td>
</tr>
<tr>
<td align="left" valign="middle" nowrap class="normaleGrassetto">News:</td>
<td align="right"> <asp:textbox BorderColor="#000066" BorderWidth="1" CssClass="normaleGrassetto" Height="20" id="News" runat="server" TextMode="SingleLine" Width="200" /> </td>
</tr>
<tr>
<td align="right" nowrap></td>
<td align="right"> <input name="submit" type="submit" class="normaleGrassetto" value="Inserisci News">
</td>
</tr>
</table>
<input type="hidden" name="MM_insert" value="form1"></td>
</tr>
<tr>
<td colspan="2"><table width="250" border="0" align="center" cellpadding="2" cellspacing="0">
<tr>
<td colspan="2" nowrap class="normaleGrassetto">Aggiornamento
delle news</td>
</tr>
<tr>
<td nowrap class="normaleGrassetto">ID:</td>
<td align="right"> <% theID2.SelectedIndex = theID2.Items.IndexOf(theID2.Items.FindByValue(Data Set1.FieldValue("ID", null) )); %> <asp:dropdownlist CssClass="normaleGrassetto"
DataSource="<%# DataSet1.DefaultView %>"
DataTextField="ID"
DataValueField="ID" BorderColor="#000066" BorderWidth="1" Height="20" ID="theID2"
runat="server" Width="50" > </asp:dropdownlist> </td>
</tr>
<tr>
<td nowrap class="normaleGrassetto">Data:</td>
<td align="right"><asp:textbox BorderColor="#000066" BorderWidth="1" CssClass="normaleGrassetto" Height="20" ID="Data2" runat="server" Text='<%# DataSet1.FieldValue("Data", Container) %>' TextMode="SingleLine" Width="200" /> </td>
</tr>
<tr>
<td nowrap class="normaleGrassetto">News:</td>
<td align="right"><asp:textbox BorderColor="#000066" BorderWidth="1" CssClass="normaleGrassetto" Height="20" ID="News2" runat="server" Text='<%# DataSet1.FieldValue("News", Container) %>' TextMode="SingleLine" Width="200" /> </td>
</tr>
<tr>
<td nowrap></td>
<td align="right"><input name="submit2" type="submit" class="normaleGrassetto" value="Aggiorna News"></td>
</tr>
</table>
<input type="hidden" name="theID" value="<%# DataSet1.FieldValue("ID", Container) %>">
<input type="hidden" name="MM_update" value="form1"></td>
</tr>
</table>
</td>
<td width="4"></td>
<td width="144" valign="top" bgcolor="#DCFFB9">
</td>
</tr>
</table>
</form>
</body>
</html>
Aiutatemi. Grazie
Nibbles
Per favore aiutatemi!
Nibbles
devi impostare la proprietà autopostback del dropdownlist a true
ho impostato la prorpietà ed ho implementato l'evento per il metodo OnSelectedItem ma non funziona e sotto sulla barra di stato del browser mi da un errore di script!
Nibbles
Permessi di invio
Rispondi quotando