/// <summary>
/// Compare the source against the pattern and if successfull returns a StringMatch
///
/// There match is done against the source which can contain the wildcard '*'
/// </summary>
private StringMatch buildWithWildcards(string source)
{
StringMatch res = new StringMatch
{
Text = source,
Segments = new List <string>(),
StartsOnMatch = false,
};
string pattern = (string)m_pattern;
string lsource = source.ToLower();
int iP = 0, iS = 0, icP = -1, icS = -1;
int ioS1 = -1, ioS2 = -1;
int NP = pattern.Length, NS = source.Length;
// skip all the starting characters untils we either don't match or reach a '*'
while ((iP != NP) && (iS != NS) && (pattern[iP] != '*'))
{
if (lsource[iS] != pattern[iP])
{
// mismatch
return(null);
}
iS++;
iP++;
}
if (iS != 0)
{
addChunkToStringMatch(res, source.Substring(0, iS), true);
}
if (iP != NP)
{
// we have not finished parsing
// now we start from a '*'
// we try to get a sequence of matches to ('*', non '*'s), ('*', non '*'s), ....
while (iS != NS)
{
if (pattern[iP] == '*')
{
// we have reached a new '*', we will now compare against the next pattern character
iP++;
if (iP == NP)
{
//we have matched all the pattern
break; // while
}
if (icP != iP)
{
// this is the 1st time we try to process this '*'
if (icP >= 0)
{
// not the first run
// so we have successfully processed the previous '*'
if (ioS1 != ioS2)
{
addChunkToStringMatch(res, source.Substring(ioS1, ioS2 - ioS1), false);
}
if (ioS2 != iS)
{
addChunkToStringMatch(res, source.Substring(ioS2, iS - ioS2), true);
}
}
ioS1 = iS;
ioS2 = -1;
}
// we save the current position in case the '*' needs to match more characters
icP = iP;
icS = iS + 1;
}
else if (lsource[iS] == pattern[iP])
{
// if we were processing a '*', we now have a successfull match
// we are still matching sucessfully the pattern
if (ioS2 == -1)
{
ioS2 = iS;
}
iS++;
iP++;
}
else
{
// we have a mismatch
// let's try again with '*' matching one more character
iP = icP;
iS = icS++;
}
if (iP == NP)
{
//we have matched all the pattern
break; // while
}
}
// we have processed either the whole source or either the whole pattern
// let's process any remaining '*' which here matches the empty string
while ((iP != NP) && (pattern[iP] == '*'))
{
iP++;
}
}
if (iP == NP)
{
// we have a match!
if (icP != iP)
{
if (ioS1 != -1)
{
if (ioS2 == -1)
{
addChunkToStringMatch(res, source.Substring(ioS1, iS - ioS1), false);
}
else
{
if (ioS2 != ioS1)
{
addChunkToStringMatch(res, source.Substring(ioS1, ioS2 - ioS1), false);
}
if (ioS2 != iS)
{
addChunkToStringMatch(res, source.Substring(ioS2, iS - ioS2), true);
}
}
}
}
if (iS != NS)
{
addChunkToStringMatch(res, source.Substring(iS, NS - iS), false);
}
return(res);
}
return(null);
}
/// <summary>
/// this were we can make suggestions
/// </summary>
/// <param name="e"></param>
protected override void OnTextChanged(EventArgs e)
{
base.OnTextChanged(e);
if (!m_fromKeyboard || !Focused)
{
return;
}
if (Text.Length < this.minLengthTextSearch)
{
return;
}
m_suggestionList.BeginUpdate();
m_suggestionList.Items.Clear();
StringMatcher matcher = new StringMatcher(MatchingMethod, Text);
//Chỉ Tìm kiếm ở DisplayMember
if (this.searchAllColums == false)
{
foreach (System.Data.DataRowView item in Items)
{
StringMatch sm = matcher.Match(
searchColumnName == ""?
GetItemText(item):
item[searchColumnName].ToString());
if (sm != null)
{
sm.Text = GetItemText(item);
m_firstText = (m_firstText == "" ? sm.Text : m_firstText);
sm.Segments.Clear();
for (int i = 0; i < arrFormatColumns.Length; i++)
{
sm.Segments.Add(
arrFormatColumns[i] == "string"?
item[arrColumnsName[i]].ToString():
string.Format(System.Globalization.CultureInfo.GetCultureInfo("vi-vn"), "{0:#,0.##}", item[arrColumnsName[i]]));
//var ci = new System.Globalization.CultureInfo("vi-vn");
//string.Format(ci, "{0:#,0.##}", item[arrColumnsName[i]]);
}
sm.StartsOnMatch = false;
m_suggestionList.Items.Add(sm);
}
}
//m_sringMatchSort = m_sringMatchSort.OrderBy(p => p.indexMatch).ToList();
//foreach (StringMatchSort m in m_sringMatchSort)
//{
// m_suggestionList.Items.Add(m.stringMatch);
//}
}
//Tìm kiếm trên tất cả các cột của DataSource
else
{
foreach (System.Data.DataRowView item in Items)
{
string data = "";
foreach (string name in arrColumnsName)
{
data = data + item[name].ToString() + " ";
}
StringMatch sm2 = matcher.Match(data);
if (sm2 != null)
{
sm2.Text = GetItemText(item);
sm2.Segments.Clear();
for (int i = 0; i < arrFormatColumns.Length; i++)
{
sm2.Segments.Add(arrFormatColumns[i] == "string" ?
item[arrColumnsName[i]].ToString() :
string.Format(System.Globalization.CultureInfo.GetCultureInfo("vi-vn"), "{0:#,0.##}", item[arrColumnsName[i]]));
}
sm2.StartsOnMatch = false;
m_suggestionList.Items.Add(sm2);
}
}
}
m_suggestionList.EndUpdate();
bool visible = m_suggestionList.Items.Count != 0;
if (m_suggestionList.Items.Count == 1 && ((StringMatch)m_suggestionList.Items[0]).Text.Length == Text.Trim().Length)
{
StringMatch sel = (StringMatch)m_suggestionList.Items[0];
Text = sel.Text;
Select(0, Text.Length);
visible = false;
}
if (visible)
{
showDropDown();
}
else
{
hideDropDown();
}
m_fromKeyboard = false;
}
