在textarea中高字节特定单词 [英] To high lite a particular word in textarea

问题描述

嘿，我想在textarea中为高字节写一个特定单词的脚本。我知道要为一个特定的div做这个，但我不知道为一个特定的单词做这个。

Hey i want to write a script to high lite a particular word in textarea. I know to do it for a particular div,but i don't know to do it for a particular word.

推荐答案

<asp:textbox rows="10" columns="30" textmode="MultiLine" id="txtSearch" runat="server" text="When implementing some software for another project, I came across several requirements involving calculations with time periods. These calculations were an important part of the solution and had high demands in respect to the correctness and accuracy of the results." xmlns:asp="#unknown"></asp:textbox>
           <asp:label id="lmsg" runat="server" xmlns:asp="#unknown"></asp:label>
           <asp:button id="btnSearch" runat="server" text="Search" onclick="btnSearch_Click" xmlns:asp="#unknown" />

< br $> b $ b

protected void btnSearch_Click(object sender, EventArgs e)
    {
        lmsg.Text = HighlightFont(txtSearch.Text, "implementing");
    }
    protected static string HighlightFont(string Search_Str, string InputTxt)
    {
        if (InputTxt != "" && (Search_Str.ToLower().IndexOf(InputTxt) != -1))
        {
            var dictionary = new Dictionary
            {
               {InputTxt,"" + InputTxt + ""}
            };
            var regex = "(" + String.Join(")|(", dictionary.Keys.ToArray()) + ")";

            foreach (Match metamatch in Regex.Matches(Search_Str, regex, RegexOptions.IgnoreCase))
            {
                Search_Str = Search_Str.Replace(metamatch.Value, dictionary[metamatch.Value.ToLower()]);
            }
            return Search_Str;
        }
        else
        {
            return Search_Str;
        }
    }

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