Programming Forums > Application Development > C#

cloud- · Nov 26th, 2005, 7:20 AM

Hey, I'm having trouble with a function, I want it to return all strings that have "Style: " at the beggining, they should return in an array. At first I was having errors because the array wasn't assigned, I assigned a null value but got another error lol. I tried the "ArrayList" too but couldnt get that to return properly. Also in msdn it said IndexOf will return 1 if the string is in, 0 if it is null, but mine returns 0 for all lines with "Style: ", A left() function would probably be better for me with this, as it will always be in the same place, else its invalid, but i couldnt find one

. Heres the code:

(Toggle Plain Text)

public string[] setstyles()
        {
            if (textBox1.Text.Length > 1)
            {
                string[] stylearray = null;
                string[] file = textBox1.Text.Split('\n');

                int stylenum = 0;
                
                for (int i = 0; i < file.Length; i++)
                {
                    if (file[i].IndexOf("Style:") >= 0)
                    {
                        // is a style
                        stylearray[stylenum] = file[i]; 
                        
                        stylenum++;
                    }
                    else if ((file[i].IndexOf("Style: ") == 0) && (file[i].IndexOf("Dialogue: ") >= 0))
                    {
                        // styles cant be under dialogue lines, break loop.
                        break;
                    }
                }
                return stylearray;
            }
            else
            {
                return null;
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
       textBox1.Text = Convert.ToString(setstyles());
        }

Please help thanks! ~(^O^~)

cloud- · Nov 26th, 2005, 11:12 AM

nvm solved

just used a normal string and split.

Dameon · Nov 26th, 2005, 11:23 AM

In the event that you ever need to use arrays again, you were trying to assgin values to stylearray when it is null. You need to give it a size first, likely based on how much you need to store.

Nov 26th, 2005, 7:20 AM	#1
cloud- Hobbyist Programmer Join Date: Jan 2005 Posts: 110 Rep Power: 4	array function, error in arrays. Hey, I'm having trouble with a function, I want it to return all strings that have "Style: " at the beggining, they should return in an array. At first I was having errors because the array wasn't assigned, I assigned a null value but got another error lol. I tried the "ArrayList" too but couldnt get that to return properly. Also in msdn it said IndexOf will return 1 if the string is in, 0 if it is null, but mine returns 0 for all lines with "Style: ", A left() function would probably be better for me with this, as it will always be in the same place, else its invalid, but i couldnt find one . Heres the code: (Toggle Plain Text) public string[] setstyles() { if (textBox1.Text.Length > 1) { string[] stylearray = null; string[] file = textBox1.Text.Split('\n'); int stylenum = 0; for (int i = 0; i < file.Length; i++) { if (file[i].IndexOf("Style:") >= 0) { // is a style stylearray[stylenum] = file[i]; stylenum++; } else if ((file[i].IndexOf("Style: ") == 0) && (file[i].IndexOf("Dialogue: ") >= 0)) { // styles cant be under dialogue lines, break loop. break; } } return stylearray; } else { return null; } } private void button2_Click(object sender, EventArgs e) { textBox1.Text = Convert.ToString(setstyles()); } public string[] setstyles() { if (textBox1.Text.Length > 1) { string[] stylearray = null; string[] file = textBox1.Text.Split('\n'); int stylenum = 0; for (int i = 0; i < file.Length; i++) { if (file[i].IndexOf("Style:") >= 0) { // is a style stylearray[stylenum] = file[i]; stylenum++; } else if ((file[i].IndexOf("Style: ") == 0) && (file[i].IndexOf("Dialogue: ") >= 0)) { // styles cant be under dialogue lines, break loop. break; } } return stylearray; } else { return null; } } private void button2_Click(object sender, EventArgs e) { textBox1.Text = Convert.ToString(setstyles()); } Please help thanks! ~(^O^~)

Nov 26th, 2005, 11:23 AM	#3
Dameon Troll Join Date: Apr 2005 Location: Texas Posts: 732 Rep Power: 4	In the event that you ever need to use arrays again, you were trying to assgin values to stylearray when it is null. You need to give it a size first, likely based on how much you need to store. __________________ MD5(sig) = bcef75433db02e9ad9bf81d6f7c5c270

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Nov 26th, 2005, 11:12 AM	#2
cloud- Hobbyist Programmer Join Date: Jan 2005 Posts: 110 Rep Power: 4	nvm solved just used a normal string and split.

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Programming Forums > Application Development > C#

array function, error in arrays.