Voeg Checkboxes, Teks Invoer, Of Beelde

Die samesmelting enjin neem’n dokument as insette, soek vir MERGEFIELD velde in dit, en vervang hulle met die data verkry uit die data bron. Gewoonlik word gewone teks en HTML ingevoeg, maar Aspose.Words gebruikers kan ook’n dokument genereer wat meer ongewone scenario’s vir Mail Merge velde hanteer.

Kragtige Aspose.Words funksionaliteit laat jou toe om die Mail Merge proses uit te brei:

• voeg merkblokkies en teksinvoervormvelde in die dokument in tydens a mail merge
• voeg beelde van enige persoonlike stoor (lêers, BLOB velde, ens.)

Voeg Checkboxes en Teks Invoer gedurende Mail Merge

Soms is dit nodig om’n Mail Merge operasie uit te voer sodat nie teks vervang word in die samesmelting veld, maar’n boks of teks invoer veld. Alhoewel dit nie die algemeenste scenario is nie, is dit baie handig vir sommige take.

Die volgende skermkiekie van’n Word dokument toon’n sjabloon met merge velde:

Hierdie skermkiekie van die Word-dokument hieronder wys die reeds gegenereerde dokument:

Let daarop dat sommige velde vervang is met gewone teks, sommige velde is vervang met boks vorm velde, en die Subject veld is vervang met’n teks invoer veld.

Die volgende kode voorbeeld toon hoe om te voeg boks en invoer teks velde in’n dokument tydens’n mail merge:

//For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-C
auto doc = MakeObject<Document>(MyDir + u"Mail merge destinations - Fax.docx");

// Setup mail merge event handler to do the custom work.
doc->get_MailMerge()->set_FieldMergingCallback(MakeObject<WorkingWithFields_::HandleMergeField>());
// Trim trailing and leading whitespaces mail merge values.
doc->get_MailMerge()->set_TrimWhitespaces(false);

ArrayPtr<String> fieldNames =
    MakeArray<String>({u"RecipientName", u"SenderName", u"FaxNumber", u"PhoneNumber", u"Subject", u"Body", u"Urgent", u"ForReview", u"PleaseComment"});

ArrayPtr<SharedPtr<System::Object>> fieldValues = MakeArray<SharedPtr<System::Object>>(
    {System::ObjectExt::Box<String>(u"Josh"), System::ObjectExt::Box<String>(u"Jenny"), System::ObjectExt::Box<String>(u"123456789"),
     System::ObjectExt::Box<String>(u""), System::ObjectExt::Box<String>(u"Hello"), System::ObjectExt::Box<String>(u"<b>HTML Body Test message 1</b>"),
     System::ObjectExt::Box<bool>(true), System::ObjectExt::Box<bool>(false), System::ObjectExt::Box<bool>(true)});

doc->get_MailMerge()->Execute(fieldNames, fieldValues);

doc->Save(ArtifactsDir + u"WorkingWithFields.MailMergeFormFields.docx");

//For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-C
class HandleMergeField : public IFieldMergingCallback
{
private:
    SharedPtr<DocumentBuilder> mBuilder;

    /// <summary>
    /// This handler is called for every mail merge field found in the document,
    /// for every record found in the data source.
    /// </summary>
    void FieldMerging(SharedPtr<FieldMergingArgs> e) override
    {
        if (mBuilder == nullptr)
        {
            mBuilder = MakeObject<DocumentBuilder>(e->get_Document());
        }

        // We decided that we want all boolean values to be output as check box form fields.
        if (System::ObjectExt::Is<bool>(e->get_FieldValue()))
        {
            // Move the "cursor" to the current merge field.
            mBuilder->MoveToMergeField(e->get_FieldName());

            String checkBoxName = String::Format(u"{0}{1}", e->get_FieldName(), e->get_RecordIndex());

            mBuilder->InsertCheckBox(checkBoxName, System::ObjectExt::Unbox<bool>(e->get_FieldValue()), 0);

            return;
        }

        if (e->get_FieldName() == u"Body")
        {
            mBuilder->MoveToMergeField(e->get_FieldName());
            mBuilder->InsertHtml(System::ObjectExt::Unbox<String>(e->get_FieldValue()));
        }
        else if (e->get_FieldName() == u"Subject")
        {
            mBuilder->MoveToMergeField(e->get_FieldName());
            String textInputName = String::Format(u"{0}{1}", e->get_FieldName(), e->get_RecordIndex());
            mBuilder->InsertTextInput(textInputName, TextFormFieldType::Regular, u"", System::ObjectExt::Unbox<String>(e->get_FieldValue()), 0);
        }
    }

    void ImageFieldMerging(SharedPtr<ImageFieldMergingArgs> args) override
    {
        args->set_ImageFileName(u"Image.png");
        args->get_ImageWidth()->set_Value(200);
        args->set_ImageHeight(MakeObject<MergeFieldImageDimension>(200, MergeFieldImageDimensionUnit::Percent));
    }
};

Voeg Beelde in tydens Mail Merge

Wanneer u’n Mail Merge - bewerking uitvoer, kan u beelde uit die databasis in die dokument invoeg met behulp van spesiale beeld Mail Merge - velde. Die beeld Mail Merge veld is’n saamsmelt veld met die naam Beeld:MyFieldName.

Voeg Beelde van’n Databasis in

Tydens’n mail merge, wanneer’n beeld Mail Merge veld in’n dokument teëgekom word, word die FieldMergingCallback gebeurtenis afgevuur. U kan op hierdie gebeurtenis reageer om’n lêernaam, stroom of beeldvoorwerp na die Mail Merge - enjin terug te stuur sodat dit in die dokument ingevoeg kan word.

Die volgende kode voorbeeld toon hoe om beelde gestoor in’n databasis BLOB veld in’n verslag in te voeg:

//For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-C
auto doc = MakeObject<Document>();
auto builder = MakeObject<DocumentBuilder>(doc);

// MERGEFIELDs with "Image:" tags will receive an image during a mail merge.
// The string after the colon in the "Image:" tag corresponds to a column name
// in the data source whose cells contain URIs of image files.
builder->InsertField(u"MERGEFIELD  Image:logo_FromWeb ");
builder->InsertField(u"MERGEFIELD  Image:logo_FromFileSystem ");

// Create a data source that contains URIs of images that we will merge.
// A URI can be a web URL that points to an image, or a local file system filename of an image file.
ArrayPtr<String> columns = MakeArray<String>({u"logo_FromWeb", u"logo_FromFileSystem"});
ArrayPtr<SharedPtr<System::Object>> URIs =
    MakeArray<SharedPtr<System::Object>>({System::ObjectExt::Box<String>(ImageUrl), System::ObjectExt::Box<String>(ImageDir + u"Logo.jpg")});

// Execute a mail merge on a data source with one row.
doc->get_MailMerge()->Execute(columns, URIs);

doc->Save(ArtifactsDir + u"MailMergeEvent.ImageFromUrl.docx");

Stel Beeldeienskappe gedurende Mail Merge

Terwyl jy’n beeldversmelte veld saamvoeg, moet jy dalk soms verskeie beeldeienskappe beheer, soos WrapType.

Tans, met behulp van ImageFieldMergingArgs jy kan slegs stel beeld breedte of hoogte eienskappe, onderskeidelik. Om hierdie probleem te oorkom, bied Aspose.Words die Shape eienskap, wat dit makliker maak om volle beheer oor die ingevoegde beeld of enige ander vorm te kry.

Die volgende kode voorbeeld toon hoe om verskeie beeld eienskappe stel:

//For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-C
auto doc = MakeObject<Document>();
auto builder = MakeObject<DocumentBuilder>(doc);

builder->Writeln(u"{{#foreach example}}");
builder->Writeln(u"{{Image(126pt;126pt):stempel}}");
builder->Writeln(u"{{/foreach example}}");

doc->get_MailMerge()->set_UseNonMergeFields(true);
doc->get_MailMerge()->set_TrimWhitespaces(true);
doc->get_MailMerge()->set_UseWholeParagraphAsRegion(false);
doc->get_MailMerge()->set_CleanupOptions(MailMergeCleanupOptions::RemoveEmptyTableRows | MailMergeCleanupOptions::RemoveContainingFields |
                                         MailMergeCleanupOptions::RemoveUnusedRegions | MailMergeCleanupOptions::RemoveUnusedFields);

doc->get_MailMerge()->set_FieldMergingCallback(MakeObject<WorkingWithFields_::ImageFieldMergingHandler>());
doc->get_MailMerge()->ExecuteWithRegions(MakeObject<WorkingWithFields_::DataSourceRoot>());

doc->Save(ArtifactsDir + u"WorkingWithFields.MailMergeImageField.docx");

//For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-C
class ImageFieldMergingHandler : public IFieldMergingCallback
{
private:
    void FieldMerging(SharedPtr<FieldMergingArgs> args) override
    {
        ASPOSE_UNUSED(args);
        //  Implementation is not required.
    }

    void ImageFieldMerging(SharedPtr<ImageFieldMergingArgs> args) override
    {
        auto shape = MakeObject<Shape>(args->get_Document(), ShapeType::Image);
        shape->set_Width(126);
        shape->set_Height(126);
        shape->set_WrapType(WrapType::Square);

        shape->get_ImageData()->SetImage(MyDir + u"Mail merge image.png");

        args->set_Shape(shape);
    }
};

//For complete examples and data files, please go to https://github.com/aspose-words/Aspose.Words-for-C
class DataSourceRoot : public IMailMergeDataSourceRoot
{
private:
    class DataSource : public IMailMergeDataSource
    {
    public:
        bool MoveNext() override
        {
            bool result = next;
            next = false;
            return result;
        }

        SharedPtr<IMailMergeDataSource> GetChildDataSource(String s) override
        {
            ASPOSE_UNUSED(s);
            return nullptr;
        }

        bool GetValue(String fieldName, SharedPtr<System::Object>& fieldValue) override
        {
            ASPOSE_UNUSED(fieldName);
            fieldValue.reset();
            return false;
        }

        DataSource() : next(true)
        {
        }

    private:
        bool next;

        String get_TableName() override
        {
            return TableName();
        }

        String TableName()
        {
            return u"example";
        }
    };

public:
    SharedPtr<IMailMergeDataSource> GetDataSource(String s) override
    {
        ASPOSE_UNUSED(s);
        return MakeObject<WorkingWithFields_::DataSourceRoot::DataSource>();
    }
};