SmartTagRecognizeContext.PersistTag Method

Article
01/16/2012

Stores information about the smart tag.

Namespace: Microsoft.Office.Tools.Word
Assembly: Microsoft.Office.Tools.Word (in Microsoft.Office.Tools.Word.dll)

Syntax

'Declaration
Sub PersistTag ( _
    startIndex As Integer, _
    length As Integer, _
    propertyBag As ISmartTagProperties _
)

void PersistTag(
    int startIndex,
    int length,
    ISmartTagProperties propertyBag
)

Parameters

startIndex
Type: System.Int32
The position in the paragraph where the smart tag begins.

length
Type: System.Int32
The length of the smart tag.

propertyBag
Type: Microsoft.Office.Interop.SmartTag.ISmartTagProperties
A property bag containing key and value pairs for the token. Can be nulla null reference (Nothing in Visual Basic).

Exceptions

Exception	Condition
InvalidOperationException	PersistTag was not called from the Recognize method.

Remarks

Call PersistTag from an implementation of the Recognize method to indicate that the smart tag was found in the text. Use the propertyBag parameter to commit any custom properties for the smart tag. You can use these properties to customize the action taken when an item from the smart tag shortcut menu is selected.

Examples

The following code example demonstrates how to call PersistTag from an implementation of the Recognize method. This implementation compares each smart tag term to the contents of the paragraph. For each smart tag term in the paragraph, the code adds a custom smart tag property and then uses the PersistTag method to recognize the smart tag. This example assumes that you have added a reference to Microsoft.Office.Interop.SmartTag from the .NET tab of the Add Reference dialog box. This code example is part of a larger example provided for the ISmartTagExtension interface.

Private Sub Recognize(ByVal text As String,
    ByVal site As ISmartTagRecognizerSite,
    ByVal tokenList As ISmartTagTokenList,
    ByVal context As SmartTagRecognizeContext) Implements ISmartTagExtension.Recognize

    For Each term As String In smartTagDemo.Terms
        ' Search the text for the current smart tag term.
        Dim index As Integer = text.IndexOf(term, 0)

        While (index >= 0)
            ' Create a smart tag token and a property bag for the recognized term.
            Dim propertyBag As ISmartTagProperties = site.GetNewPropertyBag()

            ' Write a new property value.
            Dim key As String = "Key1"
            propertyBag.Write(key, DateTime.Now.ToString())

            ' Attach the smart tag to the term in the document
            context.PersistTag(index, term.Length, propertyBag)

            ' Increment the index and then find the next instance of the smart tag term.
            index += term.Length
            index = text.IndexOf(term, index)
        End While
    Next
End Sub

void ISmartTagExtension.Recognize(string text, ISmartTagRecognizerSite site, ISmartTagTokenList tokenList, 
    SmartTagRecognizeContext context)
{

    foreach (string term in smartTagDemo.Terms)
    {
        // Search the text for the current smart tag term.
        int index = text.IndexOf(term, 0);

        while (index >= 0)
        {
            // Create a smart tag token and a property bag for the recognized term.
            ISmartTagProperties propertyBag = site.GetNewPropertyBag();

            // Write a new property value.
            string key = "Key1";
            propertyBag.Write(key, DateTime.Now.ToString());

            // Attach the smart tag to the term in the document
            context.PersistTag(index, term.Length, propertyBag);

            // Increment the index and then find the next instance of the smart tag term.
            index += term.Length;
            index = text.IndexOf(term, index);
        }
    }
}

.NET Framework Security

Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

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