richtextbox

Question

hai everyone....
i am doing a project in c sharp, ie LEXICAL ANALYZER. so i want some help, i want to read each line from richtextbox and store into an array? and also check matching two array? plz help

Hirendra Sisodiya · Answer

No You can write this way: string [] keyword ={ "int" , "float" }; private void button1_Click( object sender, EventArgs e) { CteateArray(); } private void CteateArray() { string [] str = new string [richTextBox1.Lines.Length]; for ( int i = 0; i { str[i] = richTextBox1.Lines[i].ToString(); if (Match(str[i])) { // write Code for write string in file } } } private Boolean Match( string str) { Boolean Find = false ; int j; int Index = 0; for (j = 0; j { Index = keyword[j].IndexOf(str); if (Index >= 0) Find = true ; } return Find; } thanks

Hirendra Sisodiya · Answer

Do you want to compare str[i] in another array???

Hirendra Sisodiya · Answer

above code write all matched string..check again.. thanks

vishnu krishnan · Answer

sir have any way to get that all matched string

vishnu krishnan · Answer

thanks.. sir i am getting the text file contain only "int"????....

Hirendra Sisodiya · Answer

modify this code like this: private void CteateArray() { string [] str = new string [richTextBox1.Lines.Length]; TextWriter tw = new StreamWriter ( "C:\help.txt" ); for ( int i = 0; i { str[i] = richTextBox1.Lines[i].ToString(); if (Match(str[i])) { tw.WriteLine(str[i].ToString()); // write Code for write string in file } } tw.Close(); } thanks

vishnu krishnan · Answer

sir i update the code for writing into file but that contain only System.string[]; str[i] = richTextBox1.Lines[i].ToString(); if (Match(str[i])) { TextWriter tw = new StreamWriter("help.txt"); tw.WriteLine(str); tw.Close(); }

vishnu krishnan · Answer

textfile format, or sir can u write that matched string into the richtextbox. str[i] = richTextBox1.Lines[i].ToString(); if (Match(str[i])) { //here }

Hirendra Sisodiya · Answer

which type of file format??

vishnu krishnan · Answer

thnks, sorry sir that was my mistake, sir i need some help from u how the return write into a file? or how that write into the same richtextbox? plz help

vishnu krishnan · Answer

private void button1_Click(object sender, EventArgs e) { string[] keyword ={ "int", "float" }; private void CteateArray() { string[] str = new string[richTextBox1.Lines.Length]; for (int i = 0; i { str[i] = richTextBox1.Lines[i].ToString(); if (Match(str[i])) { // write Code for write string in file } } } private Boolean Match(string str) { Boolean Find = false; int j; int Index = 0; for (j = 0; j { Index = keyword[j].IndexOf(str); if (Index >= 0) Find = true; } return Find; } } sir can i write this way, in a button? i will give some error in the string[] keyword ={ "int", "float" }; ?

Hirendra Sisodiya · Answer

check this: string [] keyword ={ "int" , "float" }; private void CteateArray() { string [] str = new string [richTextBox1.Lines.Length]; for ( int i = 0; i { str[i] = richTextBox1.Lines[i].ToString(); if (Match(str[i])) { // write Code for write string in file } } } private Boolean Match( string str) { Boolean Find = false ; int j; int Index = 0; for (j = 0; j { Index = keyword[j].IndexOf(str); if (Index >= 0) Find = true ; } return Find; } thanks

vishnu krishnan · Answer

ok thanks

Hirendra Sisodiya · Answer

wait.... i give you maintained code....

vishnu krishnan · Answer

thanku.... how to print the matching keyword or how to write that into a file.

Hirendra Sisodiya · Answer

check this string [] keyword ={ "int" , "float" }; int j; int Index = 0; for (j = 0; j { Index = keyword[j].IndexOf(str[i]); if (Index >= 0) break ; // Find string in array } thanks

vishnu krishnan · Answer

yes, i want to comapre with another array, which i stored the kwywords; string[] keyword ={ "int", "float" };

Hirendra Sisodiya · Answer

hello Vishnu try this code for saving each line of richtextbox in array: string [] str = new string [richTextBox1.Lines.Length]; for ( int i = 0; i { str[i] = richTextBox1.Lines[i].ToString(); } thanks please mark as answer if it helps

vishnu krishnan · Answer

thanku for respose,.... it is a windows project.. i hope u knw the lexical analyzer, am plan to do this, just like, load the program into a richtextbox, then split program with space and comma, and identify all the keywords, identifiers store in a file. so now i load the splitted program into a richtextbox, i think take each line from the richtextbox and checking with an array, which contains stored all the keywords, if find any keyword in that array, write that into a file.

vishnu krishnan · Answer

thanku for respose,.... it is a windows project.. i hope u knw the lexical analyzer, am plan to do this, just like, load the program into a richtextbox, then split program with space and comma, and identify all the keywords, identifiers store in a file. so now i load the splitted program into a richtextbox, i think take each line from the richtextbox and checking with an array, which contains stored all the keywords, if find any keyword in that array, write that into a file.

Suthish Nair · Answer

Hi Vishnu, Can you explain in detail about your project. Its a Web or Windows project. you can refer WPF RichTextBox: http://www.c-sharpcorner.com/UploadFile/mahesh/WPFRichTextBox09072008194855PM/WPFRichTextBox.aspx

richtextbox

Answers (21)