填充 AcroForm - 使用 C# 填充 PDF 表单

以下代码片段也适用于 Aspose.PDF.Drawing 库。

在 PDF 文档中填充表单字段

要填充表单字段，从 Document 对象的 Form 集合中获取字段，并使用适合字段类型的属性设置其值（例如，文本字段的 Value，复选框的 Checked，或列表框的 Selected）。

在此示例中，选择了各种字段并设置了它们的属性。

.NET Core 3.1

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void FillFormField()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Open PDF document
    using (var document = new Aspose.Pdf.Document(dataDir + "DocumentWithSomeFields.pdf"))
    {
        // Set value for TextBoxField
        var textBoxField = document.Form["textField"] as Aspose.Pdf.Forms.TextBoxField;
        textBoxField.Value = "Value to be filled in the field";

        // Add option for ListBoxField and select it
        var listBoxField = document.Form["listField"] as Aspose.Pdf.Forms.ListBoxField;
        listBoxField.AddOption("Orange");
        listBoxField.Selected = listBoxField.Options.Count;

        // Set check for CheckboxField
        var checkboxField = document.Form["checkField"] as Aspose.Pdf.Forms.CheckboxField;
        checkboxField.Checked = true;

        // Set check for first option of RadioButtonField
        var radioField = document.Form["radioGroup"] as Aspose.Pdf.Forms.RadioButtonField;
        radioField.Options[1].Selected = true;

        // Save PDF document
        document.Save(dataDir + "DocumentWithSomeFields_out.pdf");
    }
}

.NET 8

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void FillFormField()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_Forms();

    // Open PDF document
    using var document = new Aspose.Pdf.Document(dataDir + "DocumentWithSomeFields.pdf");

    // Set value for TextBoxField
    var textBoxField = document.Form.OfType<Aspose.Pdf.Forms.TextBoxField>().First();
    textBoxField.Value = "Value to be filled in the field";

    // Add option for ListBoxField and select it
    var listBoxField = document.Form.OfType<Aspose.Pdf.Forms.ListBoxField>().First();
    listBoxField.AddOption("Orange");
    listBoxField.Selected = listBoxField.Options.Count;

    // Set check for CheckboxField
    var checkboxField = document.Form.OfType<Aspose.Pdf.Forms.CheckboxField>().First();
    checkboxField.Checked = true;

    // Set check for first option of RadioButtonField
    var radioField = document.Form.OfType<Aspose.Pdf.Forms.RadioButtonField>().First();
    radioField.Options[1].Selected = true;

    // Save PDF document
    document.Save(dataDir + "DocumentWithSomeFields_out.pdf");
}