真正的作者名称是:PolarBear。
我的搜索功能PolarBear
,结果PolarBear
按照我的意愿突出显示。
我搜索了Polarbear
,polarbear
和poLarbear
,PolarBear
确实出现在结果中,但未按照我的意愿突出显示。
如何使突出显示不区分大小写与搜索一样?谢谢。
突出显示代码:
private void searchComByAuthor()
{
// Process the list of files found in the directory.
string[] fileEntries = Directory.GetFiles(sourceDirXML);
foreach (string fileName in fileEntries)
{
XmlDocument xmlDoc = new XmlDocument(); //* create an xml document object.
string docPath = fileName;
xmlDoc.Load(docPath); //* load the XML document from the specified file.
XmlNodeList nodeList = xmlDoc.GetElementsByTagName("item");
foreach (XmlNode node in nodeList)
{
XmlElement itemElement = (XmlElement)node;
string itemAuthor = itemElement.GetElementsByTagName("author")[0].InnerText;
if (itemAuthor.ToLower() == txtComAuthor.Text.ToString().ToLower())
{
string itemTitle = itemElement.GetElementsByTagName("title")[0].InnerText;
string itemDate = itemElement.GetElementsByTagName("pubDate")[0].InnerText;
string itemDescription = itemElement.GetElementsByTagName("description")[0].InnerText;
string itemXMLFile = Path.GetFileNameWithoutExtension(fileName);
richComByTemplate.AppendText("SYMBOL: " + itemXMLFile + "\nAUTHOR: " + itemAuthor + "\nDATE: " + itemDate +
"\nTITLE: " + itemTitle + "\nDESCRIPTION: " + itemDescription + "\n\n--------\n\n");
}
}
}
int pointer = 0;
int index = 0;
string keyword = txtComAuthor.Text;
string shadow = richComByTemplate.Text;
while (true)
{
//Searching in the copy/shadow
index = shadow.IndexOf(keyword, pointer);
//if keyword not found then the loop will break
if ((index == -1) || (String.IsNullOrEmpty(keyword)))
{
break;
}
richComByTemplate.Select(index, keyword.Length);
richComByTemplate.SelectionColor = Color.Red;
richComByTemplate.SelectionFont = new System.Drawing.Font(richComByTemplate.Font, FontStyle.Bold);
pointer = index + keyword.Length;
}
答案 0 :(得分:2)
在设置.ToLower()
和keyword
变量时添加shadow
。然后突出显示应该按预期工作:
string keyword = txtComAuthor.Text.ToLower();
string shadow = richComByTemplate.Text.ToLower();
或者,您可以告诉IndexOf
不区分大小写:
index = shadow.IndexOf(keyword, pointer, StringComparison.OrdinalIgnoreCase);
答案 1 :(得分:1)
您可以尝试使用使用IndexOf枚举的StringComparison方法的重载。
index = shadow.IndexOf(keyword, pointer,StringComparison.InvariantCultureIgnoreCase);
来自第二个MSDN链接:
当您调用字符串比较方法(如String.Compare,String.Equals或String.IndexOf)时,应始终调用包含StringComparison类型参数的重载,以便您可以指定方法的比较类型施行。有关更多信息,请参阅.NET Framework中使用字符串的最佳实践。
小型工作测试示例:
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
int pointer = 0;
int index = 0;
string keyword = txtComAuthor.Text;
string shadow = richComByTemplate.Text;
while (true)
{
//Searching in the copy/shadow
index = shadow.IndexOf(keyword, pointer, StringComparison.InvariantCultureIgnoreCase);
//if keyword not found then the loop will break
if ((index == -1) || (String.IsNullOrEmpty(keyword)))
{
break;
}
richComByTemplate.Select(index, keyword.Length);
richComByTemplate.SelectionColor = Color.Red;
richComByTemplate.SelectionFont = new System.Drawing.Font(richComByTemplate.Font, FontStyle.Bold);
pointer = index + keyword.Length;
}
}
}