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change the color of lines

Posted By:      Posted Date: September 26, 2010    Points: 0   Category :ASP.Net

Please advice---------

Let me explain this.
// aspx
<asp:TextBox runat="server" ID="txtOld" TextMode="MultiLine" Columns="70" Rows="30" Width="425px" />
<asp:TextBox runat="server" ID="txtNew" TextMode="MultiLine" Columns="70" Rows="30" Width="425px" />
<asp:Button Text="Compare" runat="server" ID="btnCompare" OnClick="btnCompare_Click" />

// c#
I have two string

string strOld = "This a line 1\nThis is going to be line 2\rThis is going to be line 3\rThis is line 4";
string strNew = "This a line 1\nThis text is changed here going to be line 2\rThis is going to be line 3\rThis is changed line 4";

Please note that these strings have \n and \r in it.

When form loads, I do something like this
 if (!IsPostBack)
            txtOld.Text = strOld;
            txtNew.Text = strNew;
Web browser automatically splits the strings and align nicely in the Text box like this


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