asp.net高亮显示搜索关键字的两个方法

方法一、完成查找关键字字体高亮显示 string serkeys(string , string)#region 方法一、完成查找关键字字体高亮显示 string serkeys(string , string)

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/**//// <summary>

/// 完成查找关键字字体高亮显示

/// </summary>

/// <span name="str" class="mceItemParam"></span>字符串</param>

/// <span name="sqlkey" class="mceItemParam"></span>字符串关键词</param>

/// <returns>返回字符串</returns>

public static string serkeys(string str,string sqlkey)

{

//sqlstr 待查找的关键字

//str 已经查找到带有关键字的字符串

int len=sqlkey.Length;

int len1=str.Length;

string onesqlstr,rproname="";

rproname=str;

//去掉关键字头和尾的空格，及将关键词

sqlkey=sqlkey.Trim();

if (sqlkey.IndexOf(" ")>0)

{

string [] kewArray=sqlkey.Split(' ');

rproname=str;

if (kewArray.Length>0)

{

for(int i=0;i<=kewArray.Length-1;i++)

{

onesqlstr =kewArray[i];

if(onesqlstr!="" && onesqlstr!=null)

{

if( str.IndexOf(onesqlstr)>=0)

rproname = rproname.Replace(onesqlstr,"<span style="color:#ff0033" mce_style="color:#ff0033">"+onesqlstr+"</span>");

}

}

}

}

else

{

onesqlstr=sqlkey;

if( str.IndexOf(onesqlstr)>=0)

rproname = rproname.Replace(onesqlstr,"<span style="color:#ff0033" mce_style="color:#ff0033">"+onesqlstr+"</span>");

}

return rproname;

}

方法二、完成查找关键字字体高亮显示，精确到每个字符#region 方法二、完成查找关键字字体高亮显示，精确到每个字符

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/**//// <summary>

/// 完成查找关键字字体高亮显示，精确到每个字符

/// </summary>

/// <span name="str" class="mceItemParam"></span>字符串</param>

/// <span name="sqlkey" class="mceItemParam"></span>字符串关键词</param>

/// <returns>返回字符串</returns>

public static string serkeys_char(string str,string sqlkey)

{

//sqlstr 待查找的关键字

//str 已经查找到带有关键字的字符串

int len=sqlkey.Length;

int len1=str.Length;

string onesqlstr,pproname,rproname="";

string [] memo= new string[len1];

for(int j=0;j<=len1-1;j++)

{

onesqlstr=sqlkey;

pproname=str.Substring(j,1);

if (onesqlstr.ToLower().IndexOf(pproname.ToLower())>=0)

{

memo[j]="<span style="color:#ff0033" mce_style="color:#ff0033">"+pproname+"</span>";

}

else

{

memo[j]=pproname;

}

}

for(int i=0;i<=memo.Length-1;i++)

{

rproname+=memo[i];

}

return rproname;

}

本文来自：http://www.oseye.net/blog/JustCool/show/97