C#/VB.NET 获取Excel中的表单控件

Excel中可通过【开发工具】菜单栏下插入表单控件，如文本框、单选按钮、复选框、组合框等等，插入后的控件可执行设置控件格式，如大小、是否锁定、位置、可选文字、数据源区域、单元格链接等。当Excel中已插入上述控件，需要读取时，也可以使用本文中的方法来读取。下面，将通过C#及VB.NET代码示例展示如何来获取Excel文档中的表单控件。以下是读取的方法及步骤，供参考。

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【引用dll】

方法1：在程序中手动引入Spire.Xls.dll文件；将Free Spire.XLS for .NET下载到本地，解压，安装。安装完成后，找到安装路径下BIN文件夹中的Spire.Xls.dll。然后在Visual Studio中打开“解决方案资源管理器”，鼠标右键点击“引用”，“添加引用”，将本地路径BIN文件夹下的dll文件添加引用至程序。

方法2：通过​​NuGet​​安装。可通过以下2种方法安装：

（1）可以在Visual Studio中打开“解决方案资源管理器”，鼠标右键点击“引用”，“管理NuGet包”，然后搜索“Free Spire.XLS”，点击“安装”。等待程序安装完成。

（2）将以下内容复制到PM控制台安装。

Install-Package FreeSpire.XLS -Version 12.2.0

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【代码示例】

C#

using System;
using Spire.Xls;
using Spire.Xls.Core;

namespace GetFormControl
{
    class Program
    {
        static void Main(string[] args)
        {
            //创建Workbook类的实例，加载Excel文档
            Workbook wb = new Workbook();
            wb.LoadFromFile("test.xlsx");

            //获取第1张工作表
            Worksheet sheet = wb.Worksheets[0];

            //获取TextBox
            string textbox = sheet.TextBoxes[0].Text;
            Console.WriteLine("TextBox: "+ textbox);
            Console.ReadLine();

            //获取Radio Button
            for (int i = 0; i < sheet.RadioButtons.Count; i++)
            {
                IRadioButton radioButton = sheet.RadioButtons[i];
                string name = radioButton.CheckState.ToString();
                string text = radioButton.Text;
                bool islocked = radioButton.IsLocked;
                Console.WriteLine("RadioButtons: " + name + text + " 是否锁定：" + islocked.ToString());
                Console.ReadLine();
            }

            //获取Combo Box控件中的选中的值（注：非列表中所有选项值）
            string value = sheet.ComboBoxes[0].SelectedValue;
            Console.WriteLine("ComboBoxes: " + value);
            Console.ReadLine();

            //获取Checkbox
            for (int z = 0; z < sheet.CheckBoxes.Count; z++)
            {
                ICheckBox checkBox = sheet.CheckBoxes[z];
                string text = checkBox.Text;
                string name = checkBox.CheckState.ToString();
                string alternativetext = checkBox.AlternativeText;
                Console.WriteLine("CheckBoxes: " + text + name + alternativetext);
                Console.ReadLine();
            }

            //获取SpinnerShape
            for (int j = 0; j < sheet.SpinnerShapes.Count; j++)
            {
                ISpinnerShape spinnerShape = sheet.SpinnerShapes[j];
                string rangeAddress = spinnerShape.LinkedCell.RangeAddress;
                int currentValue = spinnerShape.CurrentValue;
                Console.WriteLine("SpinnerShapes: RangeAddress is " + rangeAddress + "\n"+"CurrentValue:" + currentValue);
                Console.ReadLine();               
            }

        }
    }
}

vb.net

Imports Spire.Xls
Imports Spire.Xls.Core

Namespace GetFormControl
  Class Program
    Private Shared Sub Main(args As String())
      '创建Workbook类的实例，加载Excel文档
      Dim wb As New Workbook()
      wb.LoadFromFile("AddControls.xlsx")

      '获取第1张工作表
      Dim sheet As Worksheet = wb.Worksheets(0)

      '获取TextBox
      Dim textbox As String = sheet.TextBoxes(0).Text
      Console.WriteLine(Convert.ToString("TextBox: ") & textbox)
      Console.ReadLine()

      '获取Radio Button
      For i As Integer = 0 To sheet.RadioButtons.Count - 1
        Dim radioButton As IRadioButton = sheet.RadioButtons(i)
        Dim name As String = radioButton.CheckState.ToString()
        Dim text As String = radioButton.Text
        Dim islocked As Boolean = radioButton.IsLocked
        Console.WriteLine((Convert.ToString(Convert.ToString("RadioButtons: ") & name) & text) + " 是否锁定：" + islocked.ToString())
        Console.ReadLine()
      Next

      '获取Combo Box控件中的选中的值（注：非列表中所有选项值）
      Dim value As String = sheet.ComboBoxes(0).SelectedValue
      Console.WriteLine(Convert.ToString("ComboBoxes: ") & value)
      Console.ReadLine()

      '获取Checkbox
      For z As Integer = 0 To sheet.CheckBoxes.Count - 1
        Dim checkBox As ICheckBox = sheet.CheckBoxes(z)
        Dim text As String = checkBox.Text
        Dim name As String = checkBox.CheckState.ToString()
        Dim alternativetext As String = checkBox.AlternativeText
        Console.WriteLine(Convert.ToString(Convert.ToString(Convert.ToString("CheckBoxes: ") & text) & name) & alternativetext)
        Console.ReadLine()
      Next

      '获取SpinnerShape
      For j As Integer = 0 To sheet.SpinnerShapes.Count - 1
        Dim spinnerShape As ISpinnerShape = sheet.SpinnerShapes(j)
        Dim rangeAddress As String = spinnerShape.LinkedCell.RangeAddress
        Dim currentValue As Integer = spinnerShape.CurrentValue
        Console.WriteLine((Convert.ToString("SpinnerShapes: RangeAddress is ") & rangeAddress) + vbLf + "CurrentValue:" + currentValue)
        Console.ReadLine()
      Next

    End Sub
  End Class
End Namespace

控件读取效果：

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