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POSave HEX data to file
 

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  1. POSave HEX data to file
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    <p>I'm having some problems saving the edited data to the original file... I want to save my string from textBox1 to the file it was loaded from.</p> <p>Here is my "Load" function:</p> <pre><code>public static string getItemName(int index) { FileStream str = File.OpenRead(Directory.GetCurrentDirectory() + ybi); BinaryReader breader = new BinaryReader(str); breader.BaseStream.Position = itemSectionStart; byte[] itemSection = breader.ReadBytes(itemSectionEnd); string itemName = BitConverter.ToString(itemSection, 808 * index + 7, 64).Replace("00", "").Replace("-", ""); return hex2ascii(itemName); } </code></pre> <p>Here is my "Save" function:</p> <pre><code>public static bool setItemName(int index, string _FileName, byte[] _ByteArray) { try { System.IO.FileStream _FileStream = new System.IO.FileStream(_FileName, System.IO.FileMode.Create, System.IO.FileAccess.Write); _FileStream.Write(_ByteArray, 808 * index + 7, _ByteArray.Length); _FileStream.Close(); return true; } catch (Exception _Exception) { MessageBox.Show(Convert.ToString(_Exception.Message)); } return false; } </code></pre> <p>Now, I think here is where the problem is, in the conversion from my HEX String to ByteArray...</p> <pre><code>private byte[] HexStringToByteArray(string hexString) { int hexStringLength = hexString.Length; byte[] b = new byte[hexStringLength / 2]; for (int i = 0; i &lt; hexStringLength; i += 2) { int topChar = (hexString[i] &gt; 0x40 ? hexString[i] - 0x37 : hexString[i] - 0x30) &lt;&lt; 4; int bottomChar = hexString[i + 1] &gt; 0x40 ? hexString[i + 1] - 0x37 : hexString[i + 1] - 0x30; b[i / 2] = Convert.ToByte(topChar + bottomChar); } return b; } private void button2_Click(object sender, EventArgs e) { int index = listBox1.SelectedIndex; string hex = ""; foreach (char c in textBox1.Text) { int tmp = c; hex += String.Format("{0:x2}", (uint)System.Convert.ToUInt32(tmp.ToString())); } writeValuePositions.setItemName(index, save_FileName, HexStringToByteArray(hex.ToUpper())); } </code></pre> <p>The byteArray that gets sent to writeValuePositions.setItemName isnt right I think... I get this Exception </p> <pre><code>--------------------------- --------------------------- Offset and length were out of bounds for the array or count is greater than the number of elements from index to the end of the source collection. --------------------------- OK --------------------------- </code></pre>
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USAnurag Ranjhan
    1. USAlan Alvarez
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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      1. PTAnswer
    2. PO
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    1. This table or related slice is empty.
    1. COPlease do not prefix your titles with "C#" and such. That's what the tags are for.
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      1. POSave HEX data to file
      1. USJohn Saunders
    2. COA couple of notes that are not answers: 1) Your streams and BinaryReader should be in `using` blocks to ensure they are disposed of promptly when you're done with them, even if an exception is thrown. 2) Don't use `Convert.ToString(_Exception.Message))`. `Message` is already a string. Also you'd do better to use `_Exception.ToString()` which will display the complete exception.
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      1. POSave HEX data to file
      1. USJohn Saunders
    3. COoh alright, my bad :/
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      1. POSave HEX data to file
      1. USAlan Alvarez
 

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