Question

asp.net 怎么让文本框出现<br>而不是换行？急啊

Answer 1

文本里面的换行是 \r\n 字符。
如果你想让换行变成<br>替换就行了

cs伪代码：
// string str=你文本框的Text
//你文本框的Text = str.Replace("\r\n", "<br>");

Answer 2

给字符编码
给个例子你 看看

using System;
using System.IO;
using System.Web;
using System.Web.UI;

public partial class _Default : Page
{
protected void Page_Load(object sender, EventArgs e)
{
// This could mess up HTML.
string text = "you & me > them"; // 1

// Replace > with >
string htmlEncoded = Server.HtmlEncode(text); // 2

// Now has the > again.
string original = Server.HtmlDecode(htmlEncoded); // 3

// This is how you can access the Server in any class.
string alsoEncoded = HttpContext.Current.Server.HtmlEncode(text); // 4

StringWriter stringWriter = new StringWriter();
using (HtmlTextWriter writer = new HtmlTextWriter(stringWriter))
{
// Write a DIV with encoded text.
writer.RenderBeginTag(HtmlTextWriterTag.Div);
writer.WriteEncodedText(text);
writer.RenderEndTag();
}
string html = stringWriter.ToString(); // 5
}
}

Answer 3

过滤字符

追问

怎么过滤啊

Answer 4

文本框架 要去前台改动 就能显示了 你那是后台