多行文本取段落文字

最新推荐文章于 2025-05-19 08:59:54 发布

原创最新推荐文章于 2025-05-19 08:59:54 发布 · 590 阅读

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#textbox #button #server #asp

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本文介绍如何在ASP.NET中处理多行文本框（TextBox）的内容，通过Button点击事件，提取并显示文本框内的段落。示例代码展示了如何利用字符串操作方法获取文本段落。

<asp:TextBox ID="TextBox1" runat="server" TextMode="MultiLine" Height="145px"
Width="279px"></asp:TextBox>
<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />

protected void Button1_Click(object sender, EventArgs e)
        {
            //Response.Write(this.TextBox1.Text); 
            string s = this.TextBox1.Text.Trim(); 
            string temp = "";
            int count = 1;
            if (s.Contains("/r/n"))
            {
                while (true)
                {
                    if (!s.Contains("/r/n"))
                    {
                        Response.Write("temp " + count + " == >" + s);
                        break;
                    }
                    temp = s.Substring(0, s.IndexOf("/r/n", 0));
                    if (temp == "")
                    {
                        s = s.Remove(0, temp.Length + 2);
                        continue;
                    }
                    Response.Write("temp " + count + " ==> " + temp + "<br/>");
                    s = s.Remove(0, temp.Length + 2);
                    count++;
                }
            }
            else
            {
                Response.Write("temp " + count + " ==> " + s);
            }
        }