-- 我正在使用 asp.net 创建一个 gridview 控件，我想在设置为预定义值的列中添加一个 jquery 滑块。我的方法是使用gridview的行创建事件来调用具有预定义值的滑块函数，但是当页面呈现时没有滑块。关于为什么的任何想法？
<%@ Page Title="" Language="vb" AutoEventWireup="false" MasterPageFile="~/Site.Master" CodeBehind="AssessmentLoggedIn.aspx.vb" Inherits="BCEE_KAIV2.WebForm1" %>
<asp:Content ID="Content1" ContentPlaceHolderID="HeadContent" runat="server">
<!-- HTTP 1.1 -->
<meta http-equiv="Cache-Control" content="no-store"/>
<!-- HTTP 1.0 -->
<meta http-equiv="Pragma" content="no-cache"/>
<!-- Prevents caching at the Proxy Server -->
<meta http-equiv="Expires" content="0"/>
<style type="text/css">
.btnHolder {
text-align: center;
width: 175px;
margin: 0 auto;
}
#slider {
float: left;
width: 305px;
padding-left:10px;
padding-right:10px;
}
.auto-style3 {
color:Gray;
}
</style>
<link href="Styles/jquery-ui.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="Scripts/tinybox2/tinybox.js"></script>
<link href="Scripts/tinybox2/style.css" rel="stylesheet" />
<script src="Scripts/jquery-1.9.1.min.js" type="text/javascript"></script>
<script src="Scripts/jquery-ui.js" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
$("#accordion").accordion({
collapsible: true,
heightStyle: "content"
});
});
</script>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
<h3> <span class="auto-style3">Welcome</span>
<asp:Label ID="lastNameHolder" runat="server" Text="Label" CssClass="auto-style3"></asp:Label>,
<asp:Label ID="firstNameHolder" runat="server" Text="Label" CssClass="auto-style3"></asp:Label>
</h3>
<div id="accordion">
<h3>Step 1: Complete Optional Information</h3>
<div>Displ some box <br /></div>
<h3>Step 2: Take Assessment</h3>
<div id="divStep2" runat="server"><div class="btnHolder"><asp:Button ID="btnAssessStart" runat="server" Text="Start Your Assessment" /></div></div>
<h3>Step 3: Review Responses</h3>
<div>
<asp:LinqDataSource ID="linqDSUserResponse" runat="server"
ContextTypeName="BCEE_KAIV2.kaiDataContext" EntityTypeName=""
TableName="tblAssessmentQuestions">
</asp:LinqDataSource>
<asp:GridView ID="gvDisplayUserResponse" runat="server"
AutoGenerateColumns="False" DataKeyNames="questionPK"
DataSourceID="linqDSUserResponse">
<Columns>
<asp:CommandField ShowSelectButton="True" />
<asp:TemplateField>
<ItemTemplate>
<asp:Label ID="lblItemNum" runat="server" Text="Label"></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="questionPK" SortExpression="questionPK"
Visible="False">
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Bind("questionPK") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("questionPK") %>'></asp:Label>
</EditItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="questionPresentationOrder" HeaderText="questionPresentationOrder"
SortExpression="questionPresentationOrder" Visible="False"
InsertVisible="False" />
<asp:BoundField DataField="questionChoice1Text"
HeaderText="questionChoice1Text"
SortExpression="questionChoice1Text" />
<asp:TemplateField>
<ItemTemplate>
<div id="slider"> </div>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="questionChoice2Text"
HeaderText="questionChoice2Text" SortExpression="questionChoice2Text" />
<asp:CheckBoxField DataField="questionStatus" HeaderText="questionStatus"
SortExpression="questionStatus" Visible="False" />
</Columns>
</asp:GridView>
</div>
<h3>Step 4: Evaluate Assessment</h3>
<div><div class="btnHolder"><asp:Button ID="evaluateAssessment" runat="server" Text="Evaluate Your Assessment"/></div></div>
</div>
<script type="text/javascript">
function open_win() {
window.open("AssessmentLoggedIn.aspx", "_self");
}
</script>
</asp:Content>
和我背后的代码
Protected Sub gvDisplayUserResponse_RowCreated(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles gvDisplayUserResponse.RowCreated
If e.Row.RowType = DataControlRowType.DataRow Then
Dim myUserID As String = "13-zTest1RaffertyRichard0000"
Dim myRowNumLabel As Label = CType(e.Row.Cells(1).Controls(1), Label)
Dim myQuestionID As Guid = New Guid(gvDisplayUserResponse.DataKeys(e.Row.RowIndex).Value.ToString)
myRowNumLabel.Text = e.Row.RowIndex.ToString() + 1
Dim cxt As kaiDataContext = New kaiDataContext
Dim myUserInput = From ui In cxt.tblAssesseeResults
Where ui.assesseeUniqueID = myUserID And
ui.assesseeQuestionID = myQuestionID
Select ui.assesseeResponseScore
Dim mySliderValue As Integer = 0
For Each mui In myUserInput
mySliderValue = CType(mui, Integer)
Next
Dim csname As String = "userResponseSlider"
Dim cstype As Type = Me.GetType()
Dim cs As ClientScriptManager = Page.ClientScript
If (Not cs.IsClientScriptBlockRegistered(cstype, csname)) Then
Dim sb As New StringBuilder()
sb.Append("(function () {")
sb.Append("$('#slider').slider({")
sb.Append("value: ")
sb.AppendFormat("{0}", mySliderValue)
sb.Append(", min: 10, max: 90, step: 1")
sb.Append(" }); }); ")
cs.RegisterStartupScript(cstype, csname, sb.ToString(), True)
End If
End If
End Sub