How to replace special characters with their equivalent (such as “ á ” for “ a”) in C#?

Question

I need to get the Portuguese text content out of an Excel file and create an xml which is going to be used by an application that doesn\'t support characters such as \"ç\",

Answer 1

string text = {text to replace characters in};

Dictionary replacements = new Dictionary();

// add your characters to the replacements dictionary, 
// key: char to replace
// value: replacement char

replacements.Add('ç', 'c');
...

System.Text.StringBuilder replaced = new System.Text.StringBuilder();
for (int i = 0; i < text.Length; i++)
{
    char character = text[i];
    if (replacements.ContainsKey(character))
    {
        replaced.Append(replacements[character]);
    }
    else
    {
        replaced.Append(character);
    }
}

// 'replaced' is now your converted text