我一直在我的一个项目中使用RadTreeList，我使用RadUpload控件，它位于RadTreeList的EditFormSettings中。我使用javascript来验证RadUpload控件（即用户是否选择了任何文件），现在问题是我无法在我的javascript中找到/获取RadTreeList中的RadUpload控件，尽管我得到了RadTreeList控件。
以下是我的代码： -
function IsFilesSelected(source, args) {
debugger;
args.IsValid = true;
var treeList = $find("<%= FAQRadTreeList.ClientID %>");
var RadUpload = treeList._findChildControl.getName("UploadDocumentRadUpload");
var UploadLabel = treeList.selectItem(ImageExtensionLabel);
var FileInputs = RadUpload.getFileInputs();
for (var i = 0; i < FileInputs.length; i++) {
if (FileInputs[i].value && FileInputs[i].value.length > 0) {
args.IsValid = true;
}
else {
if (UploadLabel == null || UploadLabel.innerHTML == '')
args.IsValid = false;
else
args.IsValid = true;
}
}
}
虽然我的RadTreeList显示为： -
<telerik:RadTreeList ID="FAQRadTreeList" runat="server" AllowPaging="True" DataSourceID="FAQSqlDataSource"
PageSize="20" DataKeyNames="FAQ_ID" ParentDataKeyNames="FAQ_Parent_ID" AutoGenerateColumns="False"
Width="100%" OnInsertCommand="FAQRadTreeList_InsertCommand" OnItemCommand="FAQRadTreeList_ItemCommand"
OnItemDataBound="FAQRadTreeList_ItemDataBound" OnUpdateCommand="FAQRadTreeList_UpdateCommand"
OnItemDrop="FAQRadTreeList_ItemDrop">
<PagerStyle Mode="NextPrevNumericAndAdvanced" />
<Columns>
<telerik:TreeListEditCommandColumn UniqueName="InsertCommandColumn" ButtonType="ImageButton"
AddRecordText="Add" ShowEditButton="true" ItemStyle-CssClass="MyImageButton">
<ItemStyle HorizontalAlign="Left" VerticalAlign="Top" Width="60px" />
<HeaderStyle VerticalAlign="Top" HorizontalAlign="Left" Width="60px" />
</telerik:TreeListEditCommandColumn>
<telerik:TreeListTemplateColumn DataField="FAQ_Title" UniqueName="FAQ_Title" HeaderText="Title">
<ItemTemplate>
<asp:Label ID="FAQTitleLabel" runat="server" Text='<%# Bind("FAQ_Title") %>'></asp:Label>
</ItemTemplate>
<ItemStyle HorizontalAlign="Left" VerticalAlign="Top" Width="120px" />
<HeaderStyle HorizontalAlign="Left" VerticalAlign="Top" Width="120px" />
</telerik:TreeListTemplateColumn>
<telerik:TreeListTemplateColumn DataField="FAQ_Description" UniqueName="FAQ_Description"
HeaderText="Description">
<ItemTemplate>
<asp:Label ID="FAQDescriptionLabel" runat="server" Text='<%# ( Eval("FAQ_Description").ToString().Length > 150)? string.Concat(Eval("FAQ_Description").ToString().Substring(0, 150), ".....") : Eval("FAQ_Description") %>'></asp:Label>
<telerik:RadToolTip ID="FAQDescriptionRadToolTip" TargetControlID='<%# ( Eval("FAQ_Description").ToString().Length > 150)? "FAQDescriptionLabel" : "" %>'
Width="400px" Height="300px" ContentScrolling="Y" runat="server" HideDelay="1000"
Position="TopCenter" RelativeTo="Element" ShowDelay="1000">
<%# Eval("FAQ_Description")%>
</telerik:RadToolTip>
</ItemTemplate>
<ItemStyle HorizontalAlign="Left" VerticalAlign="Top" />
<HeaderStyle HorizontalAlign="Left" VerticalAlign="Top" />
</telerik:TreeListTemplateColumn>
<telerik:TreeListTemplateColumn DataField="ParentName" UniqueName="ParentName" HeaderText="Parent Item">
<ItemTemplate>
<asp:Label ID="ParentTitleLabel" runat="server" Text='<%# Bind("ParentName") %>'></asp:Label>
</ItemTemplate>
<ItemStyle HorizontalAlign="Left" VerticalAlign="Top" Width="100px" />
<HeaderStyle HorizontalAlign="Left" VerticalAlign="Top" Width="100px" />
</telerik:TreeListTemplateColumn>
<telerik:TreeListTemplateColumn DataField="FAQ_Order" UniqueName="FAQ_Order" HeaderText="Order">
<ItemTemplate>
<telerik:RadNumericTextBox ID="FAQOrderRadNumericTextBox" MinValue="1" NumberFormat-DecimalDigits="0"
Enabled="false" runat="server" Width="50px" Text='<%# Bind("FAQ_Order") %>'>
<EnabledStyle Font-Names="Verdana" HorizontalAlign="Right" />
</telerik:RadNumericTextBox>
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" VerticalAlign="Top" Width="60px" />
<HeaderStyle HorizontalAlign="Center" VerticalAlign="Top" Width="60px" />
</telerik:TreeListTemplateColumn>
<telerik:TreeListTemplateColumn HeaderText="Status" DataField="FAQ_ActiveStatus"
UniqueName="FAQ_ActiveStatus">
<ItemTemplate>
<asp:Label ID="ActiveStatusLabel" runat="server" CssClass='<%# (Convert.ToBoolean(Eval("FAQ_ActiveStatus"))) ? "active" : "inactive" %>'
ToolTip='<%# (Convert.ToBoolean(Eval("FAQ_ActiveStatus"))) ? "Active" : "Inactive" %>'
Text=" "></asp:Label>
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" VerticalAlign="Top" Width="60px" />
<HeaderStyle HorizontalAlign="Center" VerticalAlign="Top" Width="60px" />
</telerik:TreeListTemplateColumn>
<telerik:TreeListTemplateColumn DataField="FAQ_ActiveStatus" HeaderText="Action"
UniqueName="ActiveStatus">
<ItemTemplate>
<asp:ImageButton ID="ActiveInactiveButton" runat="server" ToolTip='<%# (Convert.ToBoolean(Eval("FAQ_ActiveStatus"))) ? "Make inactive" : "Make active" %>'
Width="14px" Height="14px" CommandName="ActiveInactive" ImageUrl='<%# (Convert.ToBoolean(Eval("FAQ_ActiveStatus"))) ? "../App_Themes/ELPISCMS/images/inactive.png" : "../App_Themes/ELPISCMS/images/active.png" %>' />
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" VerticalAlign="Top" Width="60px" />
<HeaderStyle HorizontalAlign="Center" VerticalAlign="Top" Width="60px" />
</telerik:TreeListTemplateColumn>
</Columns>
<EditFormSettings EditFormType="Template" PopUpSettings-Width="100%">
<FormTemplate>
<asp:Panel ID="DetailsPanel" runat="server" DefaultButton="SaveRadButton">
<table border="0" cellpadding="0" cellspacing="5" class="innertable">
<tr>
<td class="td18">
Title : <span class="mandatorymark">*</span>
</td>
<td class="td82">
<telerik:RadTextBox ID="FAQTitleRadTextBox" runat="server" SkinID="FAQTitleRadTextBox">
</telerik:RadTextBox>
<asp:RequiredFieldValidator ID="ReferenceTitleRequiredFieldValidator" runat="server"
ValidationGroup="FAQValidationGroup" Display="Dynamic" SetFocusOnError="true"
ControlToValidate="FAQTitleRadTextBox" CssClass="requiredfield" ErrorMessage="Required!"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td class="td18">
Description : <span class="mandatorymark">*</span>
</td>
<td class="td82">
<telerik:RadTextBox ID="FAQDescriptionRadTextBox" runat="server" TextMode="MultiLine"
Rows="8" SkinID="FAQDescriptionRadTextBox">
</telerik:RadTextBox>
<%-- <telerik:RadEditor ID="ReferenceDescriptionRadEditor" runat="server" AutoResizeHeight="false"
EnableResize="false" OnClientLoad="OnClientLoad" EditModes="Design, Html" AllowScripts="false"
ContentFilters="RemoveScripts,MakeUrlsAbsolute,FixUlBoldItalic,FixEnclosingP,IECleanAnchors,MozEmStrong,ConvertFontToSpan,ConvertToXhtml,IndentHTMLContent"
NewLineBr="true" StripFormattingOptions="AllExceptNewLines" StripFormattingOnPaste="AllExceptNewLines"
Height="600px" Width="700px">
<ImageManager ViewPaths="~/uploads/editoruploadimages" UploadPaths="~/uploads/editoruploadimages"
DeletePaths="~/uploads/editoruploadimages" />
<CssFiles>
<telerik:EditorCssFile Value="" />
</CssFiles>
<ContextMenus>
<telerik:EditorContextMenu Enabled="true">
<telerik:EditorTool Name="Cut" />
<telerik:EditorTool Name="Copy" />
<telerik:EditorTool Name="Paste" />
</telerik:EditorContextMenu>
</ContextMenus>
<Tools>
<telerik:EditorToolGroup>
<telerik:EditorTool Name="AjaxSpellCheck" />
<telerik:EditorTool Name="FindAndReplace" />
<telerik:EditorTool Name="SelectAll" />
<telerik:EditorTool Name="Cut" />
<telerik:EditorTool Name="Copy" />
<telerik:EditorTool Name="Paste" />
<telerik:EditorTool Name="Redo" />
<telerik:EditorTool Name="Undo" />
<telerik:EditorTool Name="InsertLink" />
</telerik:EditorToolGroup>
<telerik:EditorToolGroup>
<telerik:EditorTool Name="Bold" />
<telerik:EditorTool Name="Italic" />
<telerik:EditorTool Name="Underline" />
</telerik:EditorToolGroup>
<telerik:EditorToolGroup>
<telerik:EditorTool Name="FontName" />
<telerik:EditorTool Name="RealFontSize" />
<telerik:EditorTool Name="ApplyClass" />
</telerik:EditorToolGroup>
<telerik:EditorToolGroup>
<telerik:EditorTool Name="ForeColor" />
<telerik:EditorTool Name="BackColor" />
<telerik:EditorTool Name="FormatStripper" />
</telerik:EditorToolGroup>
<telerik:EditorToolGroup>
<telerik:EditorTool Name="InsertAnchor" />
<telerik:EditorTool Name="InsertCustomLink" />
<telerik:EditorTool Name="InsertDate" />
<telerik:EditorTool Name="InsertGroupbox" />
<telerik:EditorTool Name="InsertHorizontalRule" />
<telerik:EditorTool Name="InsertUnorderedList" />
<telerik:EditorTool Name="InsertOrderedList" />
<telerik:EditorTool Name="Paragraph" />
<telerik:EditorTool Name="InsertTable" />
<telerik:EditorTool Name="InsertSnippet" />
</telerik:EditorToolGroup>
<telerik:EditorToolGroup>
<telerik:EditorTool Name="Indent" />
<telerik:EditorTool Name="Outdent" />
<telerik:EditorTool Name="JustifyRight" />
<telerik:EditorTool Name="JustifyLeft" />
<telerik:EditorTool Name="JustifyCenter" />
</telerik:EditorToolGroup>
<telerik:EditorToolGroup>
<telerik:EditorTool Name="LinkManager" />
<telerik:EditorTool Name="ImageManager" />
<telerik:EditorTool Name="ImageMapDialog" />
<telerik:EditorTool Name="DocumentManager" />
<telerik:EditorTool Name="ConvertToLower" />
<telerik:EditorTool Name="ConvertToUpper" />
<telerik:EditorTool Name="ToggleScreenMode" />
</telerik:EditorToolGroup>
</Tools>
</telerik:RadEditor>
<div style="float: right;">
<span id="counter" style="text-align: right;"></span>
</div>--%>
<asp:RequiredFieldValidator ID="FAQDescriptionRequiredFieldValidator" runat="server"
ValidationGroup="FAQValidationGroup" Display="Dynamic" SetFocusOnError="true"
ControlToValidate="FAQDescriptionRadTextBox" CssClass="requiredfield" ErrorMessage="Required!"></asp:RequiredFieldValidator>
</td>
</tr>
<td class="td18">
Upload Document : <span class="mandatorymark">*</span>
</td>
<td class="td82">
<telerik:RadUpload ID="UploadDocumentRadUpload" runat="server" ControlObjectsVisibility="AddButton,RemoveButtons"
InputSize="50" AllowedFileExtensions=".png,.jpg,.jpeg,.gif" oncontextmenu="return false;"
onpaste="return false;" ReadOnlyFileInputs="true"/>
<span style="line-height: 15px; vertical-align: top;">
<asp:Label ID="ImageExtensionLabel" runat="server" Text="<br/>(Only .PNG,.JPG,.JPEG,.GIF images allowed)" />
<br />
<asp:Label runat="server" ID="ImageNameLabel" Visible="false" />
</span>
<br />
<telerik:RadProgressArea ID="UploadDocumentRadProgressArea" runat="server" ProgressIndicators="CurrentFileName">
</telerik:RadProgressArea>
<asp:CustomValidator ID="IsFilesSelectedCustomValidator" runat="server" ClientValidationFunction="IsFilesSelected"
Display="Dynamic" SetFocusOnError="true" CssClass="requiredfield" ValidationGroup="FAQValidationGroup"
ErrorMessage="Required!"></asp:CustomValidator>
<asp:CustomValidator ID="ValidateExtensionCustomValidator" runat="server" ClientValidationFunction="validateImageRadUpload"
Display="Dynamic" SetFocusOnError="true" CssClass="requiredfield" ValidationGroup="FAQValidationGroup"
ErrorMessage="<br/>(Only .PNG,.JPG,.JPEG,.GIF images allowed)"></asp:CustomValidator>
</td>
<tr>
<td>
</td>
<td class="td82">
<telerik:RadGrid ID="FilesRadGrid" runat="server" AllowFilteringByColumn="True" AllowPaging="True"
AllowSorting="True" AutoGenerateColumns="False" CellSpacing="0" DataSourceID="FilesSqlDataSource"
GridLines="None" Width="530px" Visible="false" OnItemCommand="FilesRadGrid_ItemCommand">
<MasterTableView DataKeyNames="FAQ_Uploads_ID" DataSourceID="FilesSqlDataSource">
<RowIndicatorColumn FilterControlAltText="Filter RowIndicator column">
<HeaderStyle Width="20px" />
</RowIndicatorColumn>
<ExpandCollapseColumn FilterControlAltText="Filter ExpandColumn column">
<HeaderStyle Width="20px" />
</ExpandCollapseColumn>
<Columns>
<telerik:GridBoundColumn DataField="FileName" FilterControlAltText="Filter FileName column"
HeaderText="File Name" SortExpression="FileName" UniqueName="FileName" FilterControlWidth="80%">
<HeaderStyle HorizontalAlign="Center" VerticalAlign="Middle" />
<ItemStyle HorizontalAlign="Left" Font-Size="11px" Font-Names="Arial" VerticalAlign="Middle" />
</telerik:GridBoundColumn>
<telerik:GridTemplateColumn HeaderText="Action" AllowFiltering="false">
<ItemTemplate>
<asp:ImageButton ID="DeleteImageButton" runat="server" ToolTip="Delete" CommandName="Del"
ImageUrl="~/App_Themes/ELPISCMS/images/delete.png" OnClientClick="if (!confirm('Are you sure, you want to delete this record?')) {return false;}"
CommandArgument='<%# Eval("FAQ_Uploads_ID") +":"+ Eval("FAQ_Uploads_ID") %>' />
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" Width="50px" />
<HeaderStyle HorizontalAlign="Center" VerticalAlign="Middle" Width="50px" />
</telerik:GridTemplateColumn>
</Columns>
<EditFormSettings>
<EditColumn FilterControlAltText="Filter EditCommandColumn column" />
</EditFormSettings>
</MasterTableView>
<FilterMenu EnableImageSprites="False" />
<HeaderContextMenu CssClass="GridContextMenu GridContextMenu_Default" />
</telerik:RadGrid>
<asp:SqlDataSource ID="FilesSqlDataSource" runat="server" ConnectionString="<%$ ConnectionStrings:elpis_cmsConnectionString %>"
SelectCommand="Usp_FAQ_Uploads_Select" SelectCommandType="StoredProcedure">
<SelectParameters>
<asp:ControlParameter ConvertEmptyStringToNull="true" ControlID="FAQIDHiddenField"
DbType="Int32" Name="FAQ_ID" PropertyName="Value" />
</SelectParameters>
</asp:SqlDataSource>
</td>
</tr>
<tr>
<td class="td18">
Status :
</td>
<td class="td82">
<asp:RadioButton ID="ActiveRadioButton" runat="server" CssClass="radiobutton" Checked="true"
GroupName="ActiveInactive" />Active
<asp:RadioButton ID="InactiveRadioButton" runat="server" CssClass="radiobutton" GroupName="ActiveInactive" />Inactive
</td>
</tr>
<tr>
<td>
</td>
<td class="td82">
<telerik:RadButton ID="SaveRadButton" runat="server" Text='<%# (Container is TreeListEditFormInsertItem) ? "Save" : "Update" %>'
CausesValidation="true" CommandName='<%# (Container is TreeListEditFormInsertItem) ? "PerformInsert" : "Update" %>'
ValidationGroup="FAQValidationGroup" Width="80px">
<Icon PrimaryIconUrl="~/App_Themes/ELPISCMS/images/save2.png" PrimaryIconLeft="5"
PrimaryIconTop="3" />
</telerik:RadButton>
<telerik:RadButton ID="CancelRadButton" runat="server" Text="Cancel" CommandName="Cancel"
CausesValidation="false" Width="80px">
<Icon PrimaryIconUrl="~/App_Themes/ELPISCMS/images/cancel2.png" PrimaryIconLeft="5"
PrimaryIconTop="3" />
</telerik:RadButton>
</td>
</tr>
</table>
</asp:Panel>
</FormTemplate>
</EditFormSettings>
<ClientSettings AllowItemsDragDrop="true">
<Selecting AllowItemSelection="True" />
</ClientSettings>
</telerik:RadTreeList>
<asp:SqlDataSource ID="FAQSqlDataSource" runat="server" ConnectionString="<%$ ConnectionStrings:elpis_cmsConnectionString %>"
SelectCommand="Usp_FAQ_Select" SelectCommandType="StoredProcedure"></asp:SqlDataSource>
任何人都可以帮助我吗？
谢谢