TaxonomyFieldControl classe
Fornece a experiência de edição para um objeto TaxonomyField .
Inheritance hierarchy
System.Object
System.Web.UI.Control
Microsoft.SharePoint.WebControls.SPControl
Microsoft.SharePoint.WebControls.TemplateBasedControl
Microsoft.SharePoint.WebControls.FormComponent
Microsoft.SharePoint.WebControls.FieldMetadata
Microsoft.SharePoint.WebControls.BaseFieldControl
Microsoft.SharePoint.Taxonomy.TaxonomyFieldControl
Namespace: Microsoft.SharePoint.Taxonomy
Assembly: Microsoft.SharePoint.Taxonomy (em Microsoft.SharePoint.Taxonomy.dll)
Sintaxe
'Declaração
<SharePointPermissionAttribute(SecurityAction.InheritanceDemand, ObjectModel := True)> _
<AspNetHostingPermissionAttribute(SecurityAction.InheritanceDemand, Level := AspNetHostingPermissionLevel.Minimal)> _
<SharePointPermissionAttribute(SecurityAction.LinkDemand, ObjectModel := True)> _
<AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level := AspNetHostingPermissionLevel.Minimal)> _
Public NotInheritable Class TaxonomyFieldControl _
Inherits BaseFieldControl
'Uso
Dim instance As TaxonomyFieldControl
[SharePointPermissionAttribute(SecurityAction.InheritanceDemand, ObjectModel = true)]
[AspNetHostingPermissionAttribute(SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
[SharePointPermissionAttribute(SecurityAction.LinkDemand, ObjectModel = true)]
[AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
public sealed class TaxonomyFieldControl : BaseFieldControl
Comentários
O controle de campo de taxonomia contém uma taxonomia controle de marcação da Web. É reponsiblefor ao inicializar uma nova instância da Web marcação controle com todas as propriedades para o objeto TaxonomyField . Ele também inicializa a controle de marcação da Web com seu valor inicial de taxonomia e atualiza o objeto TaxonomyField com o valor selecionado após a edição.
Exemplos
using System;
using System.IO;
using System.Globalization;
using Microsoft.SharePoint;
using Microsoft.SharePoint.Taxonomy;
// To build this file, create a Console project and add the following .NET assembly references:
// Microsoft.SharePoint
// Microsoft.SharePoint.Taxonomy
namespace Microsoft.SDK.SharePoint.Taxonomy.Samples
{
public class TestTaxonomyFieldControl
{
private void TestGetTaxonomyCollection()
{
// These test strings contain label-path pairs:
// input1 contains a single label-path pair (a path is a sequence of 1 or more GUIDs)
// input2 contains two label-path pairs
string input1 = "label1|B5EE7261-FD7C-47D2-9DB9-D499640EED01|BA3EBBB7-9C3E-414C-9625-8BCE5F422818";
string input2 = "label2|E87A3A52-365A-4E6B-8F37-F6DCED9F8EDD;label3|1CCB014A-5647-493F-B366-6D9F99FD7894";
Console.WriteLine("input1 = {0}", input1);
Console.WriteLine("input2 = {0}", input2);
// Parse the test string for a single taxonomy field value
TaxonomyFieldValue taxValue1 = TaxonomyFieldControl.GetTaxonomyValue(input1);
// Prints:
// label1 - BA3EBBB7-9C3E-414C-9625-8BCE5F422818
Console.WriteLine("\nGetTaxonomyValue(input1):");
Console.WriteLine("{0} - {1}", taxValue1.Label, taxValue1.TermGuid);
// Parse the test string for a taxonomy field value collection
TaxonomyFieldValueCollection taxFieldValueCollection1 = TaxonomyFieldControl.GetTaxonomyCollection(input1);
TaxonomyFieldValueCollection taxFieldValueCollection2 = TaxonomyFieldControl.GetTaxonomyCollection(input2);
// Prints:
// label1 - BA3EBBB7-9C3E-414C-9625-8BCE5F422818
Console.WriteLine("\nGetTaxonomyCollection(input1):");
foreach (TaxonomyFieldValue fv in taxFieldValueCollection1)
{
Console.WriteLine("{0} - {1}", fv.Label, fv.TermGuid);
}
// Prints:
// label2 - E87A3A52-365A-4E6B-8F37-F6DCED9F8EDD
// label3 - 1CCB014A-5647-493F-B366-6D9F99FD7894
Console.WriteLine("\nGetTaxonomyCollection(input2):");
foreach (TaxonomyFieldValue fv in taxFieldValueCollection2)
{
Console.WriteLine("{0} - {1}", fv.Label, fv.TermGuid);
}
// Convert the field value collections back into a string representation
string output1 = TaxonomyFieldControl.GetMultipleValueText(taxFieldValueCollection1);
string output2 = TaxonomyFieldControl.GetMultipleValueText(taxFieldValueCollection2);
// Prints:
// label1|BA3EBBB7-9C3E-414C-9625-8BCE5F422818
// label2|E87A3A52-365A-4E6B-8F37-F6DCED9F8EDD;label3|1CCB014A-5647-493F-B366-6D9F99FD7894
Console.WriteLine("\nString representations:");
Console.WriteLine(output1);
Console.WriteLine(output2);
}
}
}
using System;
using System.IO;
using System.Globalization;
using Microsoft.SharePoint;
using Microsoft.SharePoint.Taxonomy;
// To build this file, add the following .NET assembly references to the project:
// System.Web
// Microsoft.SharePoint
// Microsoft.SharePoint.Taxonomy
namespace Microsoft.SDK.SharePoint.Taxonomy.Samples
{
public class TestTaxonomyFieldControlOnPage : System.Web.UI.Page
{
// Use the following declaration to place the TaxonomyFieldControl on a custom layouts ASPX page:
// <Taxonomy:TaxonomyFieldControl id="myTaxonomyFieldControl" ControlMode="display" runat="server" />
protected TaxonomyFieldControl myTaxonomyFieldControl;
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
if (!IsPostBack)
{
// Assume we have a List with a taxonomy field called "Categories"
// Add List=GUID to the URL parameters of the custom aspx page used to view this list,
// where GUID is the ID of the list.
// Binds the TaxonomyFieldControl to the specified field
myTaxonomyFieldControl.FieldName = "Categories";
// A custom target template must be specified for the EmptyValueDescriptionForTargetTemplate property to have any effect
TaxonomyField taxField = myTaxonomyFieldControl.Field as TaxonomyField;
taxField.TargetTemplate = "_layouts/TestTaxonomyFieldControl.aspx";
// Sets the default text to be rendered if the taxonomy field has an empty value and TargetTemplate is specified.
// This property only takes effect if the ControlMode="display".
myTaxonomyFieldControl.EmptyValueDescriptionForTargetTemplate = "No categories have been defined.";
}
}
}
}
Segurança de thread
Os membros públicos estática (Shared no Visual Basic) desse tipo são seguros para thread. Nenhum membro de instância pode ser garantido como seguro para thread.