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分享关键字高亮
目前在做关键字检索时，要能完成对逗号隔开的多个关键字的检索，但是在richtextbox2输出结果中的高亮显示时会同时高亮之后要检索的词，希望最后实现每搜索一个词都只在句子中对这个词描红
代码如下：
private void find_string()//关键字
{
string keyword = comboBox1.Text;
string[] strArr = keyword.Split(',');
foreach (string s in strArr)
{
string str5 = richTextBox1.Text;
string str2 = ":";
int len = 20;
Regex reg = new Regex(s); //定义正则表达式 匹配
string result1 = reg.Match(str5).Value;
Regex reg0 = new Regex(string.Format(@"(?<prefix>[\s\S]{1})(?<key>{0})(?<suffix>[\s\S]{2})", s, "{0," + len + "}", "{0," + len + "}"));
MatchCollection mc0 = reg0.Matches(richTextBox1.Text);
//设置序号
int index = 1;
foreach (Match m0 in mc0) //循环匹配到的字符
{
this.richTextBox2.AppendText(index.ToString() + str2.ToString() + m0.Groups["prefix"] + m0.Groups["key"] + m0.Groups["suffix"] + "..." + Environment.NewLine);
index++;
}
//关键字高亮
MatchCollection mc = reg.Matches(richTextBox1.Text);
foreach (Match m in mc)
{
richTextBox1.SelectionStart = m.Index;
richTextBox1.SelectionLength = m.Length;
richTextBox1.SelectionColor = Color.Red;
}
//关键字高亮检索栏
MatchCollection mc1 = reg.Matches(richTextBox2.Text);
foreach (Match m1 in mc1)
{
richTextBox2.SelectionStart = m1.Index;
richTextBox2.SelectionLength = m1.Length;
richTextBox2.SelectionColor = Color.Blue;
}
}
}
代码如下：
private void find_string()//关键字
{
string keyword = comboBox1.Text;
string[] strArr = keyword.Split(',');
foreach (string s in strArr)
{
string str5 = richTextBox1.Text;
string str2 = ":";
int len = 20;
Regex reg = new Regex(s); //定义正则表达式 匹配
string result1 = reg.Match(str5).Value;
Regex reg0 = new Regex(string.Format(@"(?<prefix>[\s\S]{1})(?<key>{0})(?<suffix>[\s\S]{2})", s, "{0," + len + "}", "{0," + len + "}"));
MatchCollection mc0 = reg0.Matches(richTextBox1.Text);
//设置序号
int index = 1;
foreach (Match m0 in mc0) //循环匹配到的字符
{
this.richTextBox2.AppendText(index.ToString() + str2.ToString() + m0.Groups["prefix"] + m0.Groups["key"] + m0.Groups["suffix"] + "..." + Environment.NewLine);
index++;
}
//关键字高亮
MatchCollection mc = reg.Matches(richTextBox1.Text);
foreach (Match m in mc)
{
richTextBox1.SelectionStart = m.Index;
richTextBox1.SelectionLength = m.Length;
richTextBox1.SelectionColor = Color.Red;
}
//关键字高亮检索栏
MatchCollection mc1 = reg.Matches(richTextBox2.Text);
foreach (Match m1 in mc1)
{
richTextBox2.SelectionStart = m1.Index;
richTextBox2.SelectionLength = m1.Length;
richTextBox2.SelectionColor = Color.Blue;
}
}
}
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fengxiazhen8636 2017-07-03
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不能用啊。连检索结果都不出了
秋的红果实 2017-07-03
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你不是说只要一个么
fengxiazhen8636 2017-07-03
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不能用啊。连检索结果都不出了[/quote]
奥，这样改下，应该没问题了
string keyword = comboBox1.Text;
string[] strArr = keyword.Split(',');
string s = strArr.First();
//foreach (string s in strArr) //注解掉foreach
{
string str5 = richTextBox1.Text;
string str2 = ":";
int len = 20;[/quote]
这个只能检索出一个词，如果想搜第二个词就不行了
秋的红果实 2017-07-03
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不能用啊。连检索结果都不出了[/quote]
奥，这样改下，应该没问题了
string keyword = comboBox1.Text;
string[] strArr = keyword.Split(',');
string s = strArr.First();
//foreach (string s in strArr) //注解掉foreach
{
string str5 = richTextBox1.Text;
string str2 = ":";
int len = 20;
threenewbee 2017-07-03
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http://blog.csdn.net/foreverling/article/details/38371867
秋的红果实 2017-07-02
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string keyword = comboBox1.Text;
string[] strArr = keyword.Split(',');
string s = strArr.Take(1).ToString();
//foreach (string s in strArr) //注解掉foreach
{
string str5 = richTextBox1.Text;
string str2 = ":";
int len = 20;
Regex reg = new Regex(s); //定义正则表达式 匹配
string result1 = reg.Match(str5).Value;
Regex reg0 = new Regex(string.Format(@"(?<prefix>[\s\S]{1})(?<key>{0})(?<suffix>[\s\S]{2})", s, "{0," + len + "}", "{0," + len + "}"));
MatchCollection mc0 = reg0.Matches(richTextBox1.Text);
//设置序号
int index = 1;
foreach (Match m0 in mc0) //循环匹配到的字符
{
this.richTextBox2.AppendText(index.ToString() + str2.ToString() + m0.Groups["prefix"] + m0.Groups["key"] + m0.Groups["suffix"] + "..." + Environment.NewLine);
index++;
}
//关键字高亮
MatchCollection mc = reg.Matches(richTextBox1.Text);
foreach (Match m in mc)
{
richTextBox1.SelectionStart = m.Index;
richTextBox1.SelectionLength = m.Length;
richTextBox1.SelectionColor = Color.Red;
}
//关键字高亮检索栏
MatchCollection mc1 = reg.Matches(richTextBox2.Text);
foreach (Match m1 in mc1)
{
richTextBox2.SelectionStart = m1.Index;
richTextBox2.SelectionLength = m1.Length;
richTextBox2.SelectionColor = Color.Blue;
}
}
fengxiazhen8636 2017-07-02
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可是我们需要实现的就是同时搜多个词
秋的红果实 2017-07-02
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在combobox中加入一项“图像”，选“图像”，执行查询，就是只有图像高亮了
fengxiazhen8636 2017-07-02
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就是在搜图像这个词时只描红这一个词，不描红智能
秋的红果实 2017-07-02
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没理解你的意思？
