在向导的第2步中，我有一个从db填充的下拉列表。当我进入第3步RegisterUser.ActiveStepChanged事件，如果被解雇。在那里我将数据保存到数据库。我的文本框正在保存，但我的vb代码没有从下拉列表中提取selectedIndex / Value。 我尝试填充Load，PreRender中的下拉列表，但两者都没有帮助。我也做过，如果不是Postback也没有帮助。
有什么想法吗？
答案 0 :(得分：0)
以下是代码示例： 感谢。
Asp.net - 它只包含相关代码：
<%@ Page Title="Register" Language="vb" MasterPageFile="~/Site.Master" AutoEventWireup="false"
CodeBehind="Register.aspx.vb" Inherits="Events.Register" EnableEventValidation="false" Trace="true" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>
<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
<script type="text/javascript" src="../Scripts/CommonScripts.js">
</script>
<style type="text/css">
.textInput {
width: 150px;
}
.dropdownField
{
width: 155px;
}
</style>
</asp:Content>
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
<asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">
</asp:ToolkitScriptManager>
<asp:CreateUserWizard ID="RegisterUser" runat="server" EnableViewState="False"
Height="68px" Width="70%" >
<FinishNavigationTemplate>
<table cellpadding="5px" width="100%">
<tr>
<td align="center" width="50%">
<asp:Button ID="FinishButton" runat="server" CommandName="MoveComplete"
Text="Finish" onclick="RegisterUser_ActiveStepChanged" /></td>
</tr>
</table>
</FinishNavigationTemplate>
<LayoutTemplate>
<asp:PlaceHolder ID="wizardStepPlaceholder" runat="server"></asp:PlaceHolder>
<asp:PlaceHolder ID="navigationPlaceholder" runat="server"></asp:PlaceHolder>
</LayoutTemplate>
<WizardSteps>
<asp:CreateUserWizardStep ID="RegisterUserWizardStep" runat="server">
<ContentTemplate>
<table style="font-size:100%;height:100%;width:100%;">
<tr>
<td align="center" colspan="2">
Sign Up for Your New Account</td>
</tr>
<tr>
<td align="right" style="width:40%">
<asp:Label ID="UserNameLabel" runat="server" AssociatedControlID="UserName">User Name:</asp:Label>
</td>
<td>
<asp:TextBox ID="UserName" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="UserNameRequired" runat="server"
ControlToValidate="UserName" ErrorMessage="User Name is required."
ToolTip="User Name is required." ValidationGroup="RegisterUser">*</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td align="right">
<asp:Label ID="PasswordLabel" runat="server" AssociatedControlID="Password">Password:</asp:Label>
</td>
<td>
<asp:TextBox ID="Password" runat="server" TextMode="Password"></asp:TextBox>
<asp:RequiredFieldValidator ID="PasswordRequired" runat="server"
ControlToValidate="Password" ErrorMessage="Password is required."
ToolTip="Password is required." ValidationGroup="RegisterUser">*</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td align="right">
<asp:Label ID="ConfirmPasswordLabel" runat="server"
AssociatedControlID="ConfirmPassword">Confirm Password:</asp:Label>
</td>
<td>
<asp:TextBox ID="ConfirmPassword" runat="server" TextMode="Password"></asp:TextBox>
<asp:RequiredFieldValidator ID="ConfirmPasswordRequired" runat="server"
ControlToValidate="ConfirmPassword"
ErrorMessage="Confirm Password is required."
ToolTip="Confirm Password is required." ValidationGroup="RegisterUser">*</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td align="right">
<asp:Label ID="EmailLabel" runat="server" AssociatedControlID="Email">E-mail:</asp:Label>
</td>
<td>
<asp:TextBox ID="Email" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="EmailRequired" runat="server"
ControlToValidate="Email" ErrorMessage="E-mail is required."
ToolTip="E-mail is required." ValidationGroup="RegisterUser">*</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td align="right">
<asp:Label ID="QuestionLabel" runat="server" AssociatedControlID="Question">Security Question:</asp:Label>
</td>
<td>
<asp:TextBox ID="Question" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="QuestionRequired" runat="server"
ControlToValidate="Question" ErrorMessage="Security question is required."
ToolTip="Security question is required." ValidationGroup="RegisterUser">*</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td align="right">
<asp:Label ID="AnswerLabel" runat="server" AssociatedControlID="Answer">Security Answer:</asp:Label>
</td>
<td>
<asp:TextBox ID="Answer" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="AnswerRequired" runat="server"
ControlToValidate="Answer" ErrorMessage="Security answer is required."
ToolTip="Security answer is required." ValidationGroup="RegisterUser">*</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td align="center" colspan="2">
<asp:CompareValidator ID="PasswordCompare" runat="server"
ControlToCompare="Password" ControlToValidate="ConfirmPassword"
Display="Dynamic"
ErrorMessage="The Password and Confirmation Password must match."
ValidationGroup="RegisterUser"></asp:CompareValidator>
</td>
</tr>
<tr>
<td align="center" colspan="2" style="color:Red;">
<asp:Literal ID="ErrorMessage" runat="server" EnableViewState="False"></asp:Literal>
</td>
</tr>
</table>
</ContentTemplate>
<CustomNavigationTemplate>
<table border="0" cellspacing="5" style="width:100%;height:100%;">
<tr align="right">
<td align="center" colspan="0">
<asp:Button ID="StepNextButton" runat="server" CommandName="MoveNext"
Text="Create User" ValidationGroup="RegisterUser" />
</td>
</tr>
</table>
</CustomNavigationTemplate>
</asp:CreateUserWizardStep>
<asp:WizardStep runat="server" Title="General Information" StepType="Finish"
ID="GeneralInfo">
<table style="font-size:100%; width:100%; height:100%">
<tr>
<td align="center" colspan="2">
Please Add Additional Account Information</td>
</tr>
<td align="right">
Birthday:
</td>
<td>
<asp:TextBox class="textInput" ID="Birthday" runat="server"></asp:TextBox>
<asp:ImageButton ID="BirthdayButton" runat="server" ImageUrl="~/Images/Calendar.png" Height="24" Width="24" ImageAlign="Baseline" />
<asp:CalendarExtender TargetControlID="Birthday" ID="BirthdayExtender" runat="server" PopupButtonID="BirthdayButton" />
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server"
ControlToValidate="Birthday" ErrorMessage="Birthday is required."
ToolTip="Birthday is required." ValidationGroup="RegisterUser">*</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td align="right">
Religious Observance:
</td>
<td>
<asp:DropDownList class="dropdownField" ID="ReligiousObservance" runat="server"
DataSourceID="HashkafaDataSource" DataTextField="chvDescription"
DataValueField="intReligiousMasterID" AppendDataBoundItems="true" >
<asp:ListItem Value="0">Select One</asp:ListItem>
</asp:DropDownList>
<asp:SqlDataSource ID="HashkafaDataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:EventsDB.06-ConnectionString %>"
SelectCommand="select s.chvSiteName, r.intReligiousMasterID, r.chvDescription from
tblSiteMaster as s inner join tblSiteReligious as sr on s.intSiteID=sr.intSiteID
inner join tblReligiousMaster as r on r.intReligiousMasterID=sr.intReligiousMasterID
where s.intSiteID=cast(@SiteID As int)">
<SelectParameters>
<asp:Parameter Name="SiteID"/>
</SelectParameters>
</asp:SqlDataSource>
<asp:RequiredFieldValidator ID="ReligiousObservanceRequired" runat="server"
ControlToValidate="ReligiousObservance" ErrorMessage="Religious Observance is required."
ToolTip="Religious Observance is required." ValidationGroup="RegisterUser">*</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td align="center" colspan="2" style="color:Red;">
<asp:Literal ID="ErrorMessage" runat="server" EnableViewState="False"></asp:Literal>
</td>
</tr>
</table>
<%-- <CustomNavigationTemplate/> --%>
</asp:WizardStep>
<asp:CompleteWizardStep runat="server">
<ContentTemplate>
<table style="font-size:100%;height:68px;width:70%;">
<tr>
<td>
Your account has been successfully created.</td>
</tr>
<tr>
<td align="center" colspan="2">
<asp:Button ID="ContinueButton" runat="server" CausesValidation="False"
CommandName="Continue" Text="Continue" ValidationGroup="RegisterUser" />
</td>
</tr>
</table>
</ContentTemplate>
</asp:CompleteWizardStep>
</WizardSteps>
<StartNavigationTemplate>
hello<br />
</StartNavigationTemplate>
<StepNavigationTemplate>
<table cellpadding="5px" width="100%">
<tr>
<td align="right"><asp:Button ID="StepPreviousButton" runat="server" CausesValidation="False"
CommandName="MovePrevious" Text="Previous" /> </td>
<td align="left"> <asp:Button ID="StepNextButton" runat="server" CommandName="MoveNext"
Text="Next" Height="20" Width="18" /> </td> </tr>
</table>
</StepNavigationTemplate>
</asp:CreateUserWizard>
</asp:Content>
VB.net代码
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
'If (Not IsPostBack) Then
' PopulateReligiousDropdown()
'End If
'Scripts for state and country drop down
' Commented out because doing in ASP.Net
' Page.ClientScript.RegisterStartupScript(Me.GetType(), _
' "MyScript", _
' "window.onload=init();" & _
' "function init() { " & _
' "fillList(document.getElementById('MainContent_RegisterUser_dropCountry'), areas[5]);" & _
' "fillList(document.getElementById('MainContent_RegisterUser_dropState'), areas[0]);" & _
'" }", True)
PhotoUploadValidator.ValidationExpression = HelperMethods.regexPhotos.ToString()
RegisterUser.ContinueDestinationPageUrl = Request.QueryString("ReturnUrl")
' Populate ReligiousDropdown
HelperMethods.SiteID = HelperMethods.GetSiteID("Request.Url.Host")
HashkafaDataSource.SelectParameters.Item(0).DefaultValue = HelperMethods.SiteID
End Sub
Protected Sub RegisterUser_ActiveStepChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles RegisterUser.ActiveStepChanged
' Have we JUST reached the Complete step?
If RegisterUser.ActiveStep.Title = "General Information" Then
'PopulateReligiousDropdown()
End If
If RegisterUser.ActiveStep.Title = "Complete" Then
Dim GeneralInfo As WizardStep = CType(RegisterUser.FindControl("GeneralInfo"), WizardStep)
' Programmatically reference the TextBox controls
Dim LastName As TextBox = CType(GeneralInfo.FindControl("LastName"), TextBox)
Dim FirstName As TextBox = CType(GeneralInfo.FindControl("FirstName"), TextBox)
Dim dropCountry As DropDownList = CType(GeneralInfo.FindControl("dropCountry"), DropDownList)
Dim dropState As DropDownList = CType(GeneralInfo.FindControl("dropState"), DropDownList)
Dim City As TextBox = CType(GeneralInfo.FindControl("City"), TextBox)
Dim ZipCode As TextBox = CType(GeneralInfo.FindControl("ZipCode"), TextBox)
Dim Address As TextBox = CType(GeneralInfo.FindControl("Address"), TextBox)
Dim Phone As TextBox = CType(GeneralInfo.FindControl("Phone"), TextBox)
Dim Birthday As TextBox = CType(GeneralInfo.FindControl("Birthday"), TextBox)
Dim ReligiousObservance As DropDownList = CType(GeneralInfo.FindControl("ReligiousObservance"), DropDownList)
' Dim PhotoUpload As TextBox = CType(GeneralInfo.FindControl("PhotoUpload"), TextBox)
' Update the UserProfiles record for this user
' Get the UserId of the just-added user
Dim newUser As MembershipUser = Membership.GetUser
Dim newUserId As Guid = CType(newUser.ProviderUserKey, Guid)
' Insert a new record into UserProfiles
Dim connectionString As String = ConfigurationManager.ConnectionStrings("EventsDB.06-ConnectionString").ConnectionString
Dim updateSql As String = "Insert into tblUsers " & _
"Values (@UserId, GETDATE(), @FirstName, @LastName, @dropCountry, @dropState, @City, @ZipCode, @Address, @Phone, @Birthday, @ReligiousObservance)"
Using myConnection As New SqlConnection(connectionString)
myConnection.Open()
Dim myCommand As New SqlCommand(updateSql, myConnection)
myCommand.Parameters.AddWithValue("@UserId", newUserId)
myCommand.Parameters.AddWithValue("@LastName", LastName.Text.Trim())
myCommand.Parameters.AddWithValue("@FirstName", FirstName.Text.Trim())
myCommand.Parameters.AddWithValue("@dropCountry", dropCountry.SelectedValue)
myCommand.Parameters.AddWithValue("@dropState", dropState.SelectedValue)
myCommand.Parameters.AddWithValue("@City", City.Text.Trim())
myCommand.Parameters.AddWithValue("@ZipCode", ZipCode.Text.Trim())
myCommand.Parameters.AddWithValue("@Address", Address.Text.Trim())
myCommand.Parameters.AddWithValue("@Phone", Phone.Text.Trim())
myCommand.Parameters.AddWithValue("@Birthday", Birthday.Text.Trim())
myCommand.Parameters.AddWithValue("@ReligiousObservance", ReligiousObservance.SelectedIndex)
'The dropdown's are not populating the server. The Value isn't being passed
' and I don't know why?!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
myCommand.ExecuteNonQuery()
myConnection.Close()
End Using
End If
End Sub