Aspose.Words.Examples.CSharp.Mail_Merge.MailMergeFormFields.HandleMergeField.IFieldMergingCallback C# (CSharp) Method

            void IFieldMergingCallback.FieldMerging(FieldMergingArgs e)
            {
                if (mBuilder == null)
                    mBuilder = new DocumentBuilder(e.Document);

                // We decided that we want all boolean values to be output as check box form fields.
                if (e.FieldValue is bool)
                {
                    // Move the "cursor" to the current merge field.
                    mBuilder.MoveToMergeField(e.FieldName);

                    // It is nice to give names to check boxes. Lets generate a name such as MyField21 or so.
                    string checkBoxName = string.Format("{0}{1}", e.FieldName, e.RecordIndex);

                    // Insert a check box.
                    mBuilder.InsertCheckBox(checkBoxName, (bool)e.FieldValue, 0);

                    // Nothing else to do for this field.
                    return;
                }

                // We want to insert html during mail merge.
                if (e.FieldName == "Body")
                {
                    mBuilder.MoveToMergeField(e.FieldName);                    
                    mBuilder.InsertHtml((string)e.FieldValue);
                }

                // Another example, we want the Subject field to come out as text input form field.
                if (e.FieldName == "Subject")
                {
                    mBuilder.MoveToMergeField(e.FieldName);
                    string textInputName = string.Format("{0}{1}", e.FieldName, e.RecordIndex);
                    mBuilder.InsertTextInput(textInputName, TextFormFieldType.Regular, "", (string)e.FieldValue, 0);
                }
            }