ASP.NET 中在指定的位置处插入字符

protectedvoidPage_Load(objectsender,EventArgs网络
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<%@ Page Language="C#" AutoEventWireup="true" %>

<script runat="server">

  protected void Page_Load(object sender, EventArgs e)

  {

   TextBox1.Attributes.Add("onclick", "getCursor('" + TextBox1.ClientID + "','" + Hidden1.ClientID + "');");

  }

  protected void Button1_Click(object sender, EventArgs e)

  {

   string fileName = FileUpload1.FileName;

   //保存文件省略

   int pos = 0;

   Int32.TryParse(Hidden1.Value, out pos);

   TextBox1.Text = TextBox1.Text.Insert(pos, fileName);

  }

 </script>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

<title>ASP.NET 中在指定的位置处插入字符</title>

 <script type="text/javascript">

    function getCursor(param1,param2)

    {

     var pos = 0;     

     var t = document.getElementById(param1);

     if(document.selection )

     { 

      t.focus();

      var rng = document.selection.createRange();

      rng.setEndPoint("EndToStart", t.createTextRange());

      pos = rng.text.length;

     }

     else if(t.selectionStart)

     {

      pos = t.selectionStart;

     }

     document.getElementById(param2).value = pos;

    }

 </script>



</head>

<body>

 <form id="form1" runat="server">

 <div>

  <asp:TextBox ID="TextBox1" runat="server" Width="629px">123456789</asp:TextBox>

  <input id="Hidden1" type="hidden" runat="server" />

 </div>

 <asp:FileUpload ID="FileUpload1" runat="server" />

 <asp:Button ID="Button1" runat="server" Text="上载文件" OnClick="Button1_Click" />

 </form>

</body>

</html>

本文来源21aspnet,由架构君转载发布,观点不代表Java架构师必看的立场,转载请标明来源出处:https://javajgs.com/archives/2225

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