在pane_page.cs里面

using System;
using System.Windows.Forms;
using Word = Microsoft.Office.Interop.Word;//erphone

namespace Niu_Niu_edit
{
 public partial class pane_page : UserControl
 {
  public Word.Application m_app;

  public pane_page()
  {
   InitializeComponent();
  }

  //m_app 代表当前应用程序

  private void button1_Click(object sender, EventArgs e)
  {
   m_app = Globals.ThisAddIn.Application;
   Word.Document m_doc = m_app.ActiveDocument;//定义当前文档叫做m_doc

   if (float.Parse(textBox1.Text) < (float.Parse(textBox3.Text) + float.Parse(textBox4.Text)))
   {
    MessageBox.Show("页面宽度小于左右边距之和！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button1);
    textBox1.Text = "19.5";
    return;
   }//确保纸张宽度>页边距之和

   if (float.Parse(textBox2.Text) < (float.Parse(textBox4.Text) + float.Parse(textBox5.Text)))
   {
    MessageBox.Show("页面高度小于上下边距之和！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button1);
    textBox2.Text = "27";
    return;
   }//确保纸张宽度>页边距之和

   if (Math.Abs(float.Parse(textBox1.Text)) > 55.87)
   {
    MessageBox.Show("页面宽度应当在±55.87cm之内", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button1);
    textBox1.Text = "19.5";
    return;
   }//确保纸张宽度在word限定的纸张宽度范围
   if (Math.Abs(float.Parse(textBox2.Text)) > 55.87)
   {
    MessageBox.Show("页面高度应当在±55.87cm之内", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button1);
    textBox2.Text = "27";
    return;
   }//确保纸张高度在word限定的纸张宽度范围

   m_doc.PageSetup.PageWidth = m_app.CentimetersToPoints(float.Parse(textBox1.Text));// 纸张宽度
   m_doc.PageSetup.PageHeight = m_app.CentimetersToPoints(float.Parse(textBox2.Text));// 纸张高度

   //m_doc.PageSetup.TopMargin = m_app.CentimetersToPoints(float.Parse(textBox1.Text));// 上边距
   //m_doc.PageSetup.BottomMargin = m_app.CentimetersToPoints(float.Parse("&2.54"));// 下边距
   //m_doc.PageSetup.LeftMargin = m_app.CentimetersToPoints(float.Parse("&4.17"));// 左边距
   //m_doc.PageSetup.RightMargin = m_app.CentimetersToPoints(float.Parse("&3.17"));// 右边距
  }

  private void button2_Click(object sender, EventArgs e)
  {
   m_app = Globals.ThisAddIn.Application;
   Word.Document m_doc = m_app.ActiveDocument;//定义当前文档叫做m_doc

   if (float.Parse(textBox1.Text) < (float.Parse(textBox3.Text) + float.Parse(textBox4.Text)))
   {
    MessageBox.Show("页面宽度小于左右边距之和！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button1);
    textBox3.Text = "2";
    textBox4.Text = "2";
    return;
   }//确保纸张宽度>左右页边距之和

   if (float.Parse(textBox2.Text) < (float.Parse(textBox5.Text) + float.Parse(textBox6.Text)))
   {
    MessageBox.Show("页面高度小于上下边距之和！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button1);
    textBox5.Text = "2";
    textBox6.Text = "2";
    return;
   }//确保纸张高度>上下页边距之和

   if (Math.Abs(double.Parse(textBox3.Text)) > 55.87)
   {
    MessageBox.Show("页边距应当在±55.87cm之内", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button1);
    textBox3.Text = "2";
    return;
   }//确保纸张高度在word限定的纸张宽度范围

   if (Math.Abs(double.Parse(textBox4.Text)) > 55.87)
   {
    MessageBox.Show("页边距应当在±55.87cm之内", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button1);
    textBox4.Text = "2";
    return;
   }//确保纸张高度在word限定的纸张宽度范围

   if (Math.Abs(double.Parse(textBox5.Text)) > 55.87)
   {
    MessageBox.Show("页边距应当在±55.87cm之内", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button1);
    textBox5.Text = "2";
    return;
   }//确保纸张高度在word限定的纸张宽度范围

   if (Math.Abs(double.Parse(textBox6.Text)) > 55.87)
   {
    MessageBox.Show("页边距应当在±55.87cm之内", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button1);
    textBox6.Text = "2";
    return;
   }//确保纸张高度在word限定的纸张宽度范围

   m_doc.PageSetup.LeftMargin = m_app.CentimetersToPoints(float.Parse(textBox3.Text));// 左边距
   m_doc.PageSetup.RightMargin = m_app.CentimetersToPoints(float.Parse(textBox4.Text));// 右边距
   m_doc.PageSetup.TopMargin = m_app.CentimetersToPoints(float.Parse(textBox5.Text));// 上边距
   m_doc.PageSetup.BottomMargin = m_app.CentimetersToPoints(float.Parse(textBox6.Text));// 下边距
  }

  private void button3_Click(object sender, EventArgs e)
  {
   m_app = Globals.ThisAddIn.Application;
   Word.Document m_doc = m_app.ActiveDocument;//定义当前文档叫做m_doc

   if (float.Parse(textBox7.Text) > (float.Parse(textBox3.Text) + float.Parse(textBox4.Text)))
   {
    MessageBox.Show("纸张高度小于页眉页脚之和！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button1);
    textBox7.Text = "1.5";
    return;
   }//确保纸张高度>页眉页脚之和
   if (float.Parse(textBox8.Text) > (float.Parse(textBox3.Text) + float.Parse(textBox4.Text)))
   {
    MessageBox.Show("纸张高度小于页眉页脚之和！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button1);
    textBox8.Text = "1.5";
    return;
   }//确保纸张高>页眉页脚之和

   if (Math.Abs(double.Parse(textBox7.Text)) > 55.87)
   {
    MessageBox.Show("页眉高度应当在±55.87cm之内", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button1);
    textBox7.Text = "2";
    return;
   }//确保纸张高度在word限定的纸张宽度范围

   if (Math.Abs(double.Parse(textBox8.Text)) > 55.87)
   {
    MessageBox.Show("页脚高度应当在±55.87cm之内", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button1);
    textBox8.Text = "2";
    return;
   }//确保纸张高度在word限定的纸张宽度范围

   if (float.Parse(textBox7.Text) > 55.88)
   {
    MessageBox.Show("页眉值过大！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button1);
    textBox7.Text = "1.5";
    return;
   }//页眉页脚之和<word限定范围55.88cm

   if (float.Parse(textBox7.Text) > 55.88)
   {
    MessageBox.Show("页脚值过大！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button1);
    textBox8.Text = "1.5";
    return;
   }//页眉页脚之和<word限定范围55.88cm

   m_doc.PageSetup.HeaderDistance = m_app.CentimetersToPoints(float.Parse(textBox7.Text));//页眉顶端距离
   m_doc.PageSetup.FooterDistance = m_app.CentimetersToPoints(float.Parse(textBox8.Text));//页脚底端距离
  }

  private void button4_Click(object sender, EventArgs e)
  {
   button1_Click(sender, e);
   button2_Click(sender, e);
   button3_Click(sender, e);
  }

  private void button5_Click(object sender, EventArgs e)
  {
   textBox1.Text = "19.5";
   textBox2.Text = "27";
   textBox3.Text = "2";
   textBox4.Text = "2";
   textBox5.Text = "2";
   textBox6.Text = "2";
   textBox7.Text = "1.5";
   textBox8.Text = "1.5";
  }

  private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
  {
   if (((int)e.KeyChar < 48 || (int)e.KeyChar > 57) && (int)e.KeyChar != 8 && (int)e.KeyChar != 46)
    e.Handled = true;
   //小数点的处理。
   if ((int)e.KeyChar == 46)                           //小数点
   {
    if (textBox1.Text.Length <= 0)
     e.Handled = true;   //小数点不能在第一位
    else
    {
     float f;
     float oldf;
     bool b1 = false, b2 = false;
     b1 = float.TryParse(textBox1.Text, out oldf);
     b2 = float.TryParse(textBox1.Text + e.KeyChar.ToString(), out f);
     if (b2 == false)
     {
      if (b1 == true)
       e.Handled = true;
      else
       e.Handled = false;
     }
    }
   }
  }

  private void textBox2_KeyPress(object sender, KeyPressEventArgs e)
  {
   if (((int)e.KeyChar < 48 || (int)e.KeyChar > 57) && (int)e.KeyChar != 8 && (int)e.KeyChar != 46)
    e.Handled = true;
   //小数点的处理。
   if ((int)e.KeyChar == 46)                           //小数点
   {
    if (textBox2.Text.Length <= 0)
     e.Handled = true;   //小数点不能在第一位
    else
    {
     float f;
     float oldf;
     bool b1 = false, b2 = false;
     b1 = float.TryParse(textBox2.Text, out oldf);
     b2 = float.TryParse(textBox2.Text + e.KeyChar.ToString(), out f);
     if (b2 == false)
     {
      if (b1 == true)
       e.Handled = true;
      else
       e.Handled = false;
     }
    }
   }
  }

  private void textBox3_KeyPress(object sender, KeyPressEventArgs e)
  {
   if (((int)e.KeyChar < 48 || (int)e.KeyChar > 57) && (int)e.KeyChar != 8 && (int)e.KeyChar != 46)
    e.Handled = true;
   //小数点的处理。
   if ((int)e.KeyChar == 46)                           //小数点
   {
    if (textBox3.Text.Length <= 0)
     e.Handled = true;   //小数点不能在第一位
    else
    {
     float f;
     float oldf;
     bool b1 = false, b2 = false;
     b1 = float.TryParse(textBox3.Text, out oldf);
     b2 = float.TryParse(textBox3.Text + e.KeyChar.ToString(), out f);
     if (b2 == false)
     {
      if (b1 == true)
       e.Handled = true;
      else
       e.Handled = false;
     }
    }
   }
  }

  private void textBox4_KeyPress(object sender, KeyPressEventArgs e)
  {
   if (((int)e.KeyChar < 48 || (int)e.KeyChar > 57) && (int)e.KeyChar != 8 && (int)e.KeyChar != 46)
    e.Handled = true;
   //小数点的处理。
   if ((int)e.KeyChar == 46)                           //小数点
   {
    if (textBox4.Text.Length <= 0)
     e.Handled = true;   //小数点不能在第一位
    else
    {
     float f;
     float oldf;
     bool b1 = false, b2 = false;
     b1 = float.TryParse(textBox4.Text, out oldf);
     b2 = float.TryParse(textBox4.Text + e.KeyChar.ToString(), out f);
     if (b2 == false)
     {
      if (b1 == true)
       e.Handled = true;
      else
       e.Handled = false;
     }
    }
   }
  }

  private void textBox5_KeyPress(object sender, KeyPressEventArgs e)
  {
   if (((int)e.KeyChar < 48 || (int)e.KeyChar > 57) && (int)e.KeyChar != 8 && (int)e.KeyChar != 46)
    e.Handled = true;
   //小数点的处理。
   if ((int)e.KeyChar == 46)                           //小数点
   {
    if (textBox5.Text.Length <= 0)
     e.Handled = true;   //小数点不能在第一位
    else
    {
     float f;
     float oldf;
     bool b1 = false, b2 = false;
     b1 = float.TryParse(textBox5.Text, out oldf);
     b2 = float.TryParse(textBox5.Text + e.KeyChar.ToString(), out f);
     if (b2 == false)
     {
      if (b1 == true)
       e.Handled = true;
      else
       e.Handled = false;
     }
    }
   }
  }

  private void textBox6_KeyPress(object sender, KeyPressEventArgs e)
  {
   if (((int)e.KeyChar < 48 || (int)e.KeyChar > 57) && (int)e.KeyChar != 8 && (int)e.KeyChar != 46)
    e.Handled = true;
   //小数点的处理。
   if ((int)e.KeyChar == 46)                           //小数点
   {
    if (textBox6.Text.Length <= 0)
     e.Handled = true;   //小数点不能在第一位
    else
    {
     float f;
     float oldf;
     bool b1 = false, b2 = false;
     b1 = float.TryParse(textBox6.Text, out oldf);
     b2 = float.TryParse(textBox6.Text + e.KeyChar.ToString(), out f);
     if (b2 == false)
     {
      if (b1 == true)
       e.Handled = true;
      else
       e.Handled = false;
     }
    }
   }
  }

  private void textBox7_KeyPress(object sender, KeyPressEventArgs e)
  {
   if (((int)e.KeyChar < 48 || (int)e.KeyChar > 57) && (int)e.KeyChar != 8 && (int)e.KeyChar != 46)
    e.Handled = true;
   //小数点的处理。
   if ((int)e.KeyChar == 46)                           //小数点
   {
    if (textBox7.Text.Length <= 0)
     e.Handled = true;   //小数点不能在第一位
    else
    {
     float f;
     float oldf;
     bool b1 = false, b2 = false;
     b1 = float.TryParse(textBox7.Text, out oldf);
     b2 = float.TryParse(textBox7.Text + e.KeyChar.ToString(), out f);
     if (b2 == false)
     {
      if (b1 == true)
       e.Handled = true;
      else
       e.Handled = false;
     }
    }
   }
  }

  private void textBox8_KeyPress(object sender, KeyPressEventArgs e)
  {
   if (((int)e.KeyChar < 48 || (int)e.KeyChar > 57) && (int)e.KeyChar != 8 && (int)e.KeyChar != 46)
    e.Handled = true;
   //小数点的处理。
   if ((int)e.KeyChar == 46)                           //小数点
   {
    if (textBox8.Text.Length <= 0)
     e.Handled = true;   //小数点不能在第一位
    else
    {
     float f;
     float oldf;
     bool b1 = false, b2 = false;
     b1 = float.TryParse(textBox8.Text, out oldf);
     b2 = float.TryParse(textBox8.Text + e.KeyChar.ToString(), out f);
     if (b2 == false)
     {
      if (b1 == true)
       e.Handled = true;
      else
       e.Handled = false;
     }
    }
   }
  }
 }
}