Create an editor as XmlSpy with C#

[Groide]

Hello, I'm crazy but I want create an editor with c# and
System.Windows. Forms.RichTextB ox.
I have many difficult to create the effect to highlights the text and to
close the tags.
This is my code:

int cursor = richTextBox.Sel ectionStart;

Regex attrs = new Regex(@"<\/?\w+(\s+\w+=""( \w+)"")*>");

MatchCollection matches = attrs.Matches(r ichTextBox.Text );

foreach (Match match in matches)

{

GroupCollection groups = match.Groups;

Group group = groups[0];

CaptureCollecti on captures = group.Captures;

for (int i = 0; i < captures.Count; i++)

{

string word = captures[i].Value;

int index = captures[i].Index;

richTextBox.Sel ect(index, word.Length);

richTextBox.Sel ectionColor = Color.DarkBlue;

richTextBox.Des electAll();

}

Group groupAttrs = groups[2];

CaptureCollecti on capturesAttrs = groupAttrs.Capt ures;

for (int i = 0; i < capturesAttrs.C ount; i++)

{

string word = capturesAttrs[i].Value;

int index = capturesAttrs[i].Index;

richTextBox.Sel ect(index, word.Length);

richTextBox.Sel ectionColor = Color.Green;

richTextBox.Des electAll();

}
}

that color html tag in blue and value of attribute in green
BUT
the effect of flickers is horrible (es. select -> color -> deselect ->
select -> color ..etc...)

Any suggestions?

[Dmytro Lapshyn [MVP]]

Hello Groide,

What if you use the SelectionStart and SelectionLength properties and make a
good use of the LockWindowUpdat e API to prevent any redrawing until the
re-coloring is done (try without LockWindowUpdat e first, though)?

--
Sincerely,
Dmytro Lapshyn [Visual Developer - Visual C# MVP]
"Groide" <gr****@tiscali .it> wrote in message
news:42******** ************@ne ws.tiscali.it.. .

Hello, I'm crazy but I want create an editor with c# and
System.Windows. Forms.RichTextB ox.
I have many difficult to create the effect to highlights the text and to
close the tags.
This is my code:

int cursor = richTextBox.Sel ectionStart;

Regex attrs = new Regex(@"<\/?\w+(\s+\w+=""( \w+)"")*>");

MatchCollection matches = attrs.Matches(r ichTextBox.Text );

foreach (Match match in matches)

{

GroupCollection groups = match.Groups;

Group group = groups[0];

CaptureCollecti on captures = group.Captures;

for (int i = 0; i < captures.Count; i++)

{

string word = captures[i].Value;

int index = captures[i].Index;

richTextBox.Sel ect(index, word.Length);

richTextBox.Sel ectionColor = Color.DarkBlue;

richTextBox.Des electAll();

}

Group groupAttrs = groups[2];

CaptureCollecti on capturesAttrs = groupAttrs.Capt ures;

for (int i = 0; i < capturesAttrs.C ount; i++)

{

string word = capturesAttrs[i].Value;

int index = capturesAttrs[i].Index;

richTextBox.Sel ect(index, word.Length);

richTextBox.Sel ectionColor = Color.Green;

richTextBox.Des electAll();

}
}

that color html tag in blue and value of attribute in green
BUT
the effect of flickers is horrible (es. select -> color -> deselect ->
select -> color ..etc...)

Any suggestions?

[Groide]

Thanks a lot, i must imprt a dll on my c# project
[DllImport("user 32.dll")]
but the result is perfect.

Groide
"Dmytro Lapshyn [MVP]" <x-****@no-spam-please.hotpop.c om> ha scritto nel
messaggio news:%2******** *******@TK2MSFT NGP15.phx.gbl.. .

Hello Groide,

What if you use the SelectionStart and SelectionLength properties and make
a good use of the LockWindowUpdat e API to prevent any redrawing until the
re-coloring is done (try without LockWindowUpdat e first, though)?

--
Sincerely,
Dmytro Lapshyn [Visual Developer - Visual C# MVP]
"Groide" <gr****@tiscali .it> wrote in message
news:42******** ************@ne ws.tiscali.it.. .

Hello, I'm crazy but I want create an editor with c# and
System.Windows. Forms.RichTextB ox.
I have many difficult to create the effect to highlights the text and to
close the tags.
This is my code:

int cursor = richTextBox.Sel ectionStart;

Regex attrs = new Regex(@"<\/?\w+(\s+\w+=""( \w+)"")*>");

MatchCollection matches = attrs.Matches(r ichTextBox.Text );

foreach (Match match in matches)

{

GroupCollection groups = match.Groups;

Group group = groups[0];

CaptureCollecti on captures = group.Captures;

for (int i = 0; i < captures.Count; i++)

{

string word = captures[i].Value;

int index = captures[i].Index;

richTextBox.Sel ect(index, word.Length);

richTextBox.Sel ectionColor = Color.DarkBlue;

richTextBox.Des electAll();

}

Group groupAttrs = groups[2];

CaptureCollecti on capturesAttrs = groupAttrs.Capt ures;

for (int i = 0; i < capturesAttrs.C ount; i++)

{

string word = capturesAttrs[i].Value;

int index = capturesAttrs[i].Index;

richTextBox.Sel ect(index, word.Length);

richTextBox.Sel ectionColor = Color.Green;

richTextBox.Des electAll();

}
}

that color html tag in blue and value of attribute in green
BUT
the effect of flickers is horrible (es. select -> color -> deselect ->
select -> color ..etc...)

Any suggestions?