richtextbox

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

sir have any way to get that all matched string

thanks..

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

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 <= richTextBox1.Lines.Length - 1; 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

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();

                }

textfile format, or sir can u write that matched string into the richtextbox.


 str[i] = richTextBox1.Lines[i].ToString();
                if (Match(str[i]))
                {
                   
                              //here

                }

which type of file format??
 

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

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 <= richTextBox1.Lines.Length - 1; 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 < keyword.Length; 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" };    ?

check this:
string[] keyword ={ "int", "float" };
private void CteateArray()
{
string[] str = new string[richTextBox1.Lines.Length];
for (int i = 0; i <= richTextBox1.Lines.Length - 1; 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 < keyword.Length; j++)
{
Index = keyword[j].IndexOf(str);
if (Index >= 0)
Find = true;
}
return Find;
}
 
thanks

ok thanks

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

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

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

yes, i want to comapre with another array, which i stored the kwywords;

string[] keyword ={ "int", "float" };

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 <= richTextBox1.Lines.Length - 1; i++)
{
str[i] = richTextBox1.Lines[i].ToString();
}
 
thanks
please mark as answer if it helps

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.

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