Problem adding to dictionary in c#
Alright so I've looked hard but I couldn't seem to find answer to my problem. There must be a problem in my code and it would be really helpful if someone could look at it for me.
Dictionary<string, string> keylist = new Dictionary<string, string>();
if (intext.Contains("addkey") && intext.Contains("def"))
{
string[] keywords = intext.Split(' ');
string key1 = keywords[1];
string def2 = keywords[3];
str开发者_开发技巧ing fkey = key1.Replace("_", " ");
string fdef = def2.Replace("_", " ");
keylist.Add(fkey, fdef);
say("Phrase '" + fkey + "' added with response '" + fdef + "'");
say("Your Dictionary contains " + keylist.Count.ToString() + " word(s).");
//////////////////////////////
}
All I want it to do is take the input in the form of "addkey key_here def definition_here" and add it to the dictionary. I added the counting part for debugging purposes and it always says I only have 1 word in the dictionary no matter how many I have added. You can probably tell I'm new so please be gentle. Thanks
Dictionary<string, string> keylist = new Dictionary<string, string>();
I'm assuming that this function is called whenever the user enters some sort of command (e.g. from the command line, when they click a button, etc.). If this is the case, you need to have your keylist
dictionary at a higher level (as an instance variable, for example). The way the code is now, every time the function is called a new dictionary is created and the key is added to it; this is why there's only one.
At the risk of misjudging or oversimplifying your problem, just moving the line I quoted above outside of the function body should help.
In the code as given you are recreating the dictionary every time you run it.
Dictionary<string, string> keylist = new Dictionary<string, string>();
Reinitializes the variable keylist to an empty dictionary.
Instead try moving that line outside of the function. Since you are using winforms, you can create a class level variable, something like this:
public partial class Form1 : Form
{
Dictionary<string, string> keylist = new Dictionary<string, string>();
public Form1()
{
InitializeComponent();
}
public void YourFunction(string intext)
{
if (intext.Contains("addkey") && intext.Contains("def"))
{
string[] keywords = intext.Split(' ');
string key1 = keywords[1];
string def2 = keywords[3];
string fkey = key1.Replace("_", " ");
string fdef = def2.Replace("_", " ");
keylist.Add(fkey, fdef);
say("Phrase '" + fkey + "' added with response '" + fdef + "'");
say("Your Dictionary contains " + keylist.Count.ToString() + " word(s).");
}
}
}
You need to loop through the if (intext.Contains...{}
block or it only runs once. If you are looping through it and only getting one entry in the Dictionary, it's because you keep reassigning it within the scope in a scenario such as:
while(true) {
Dictionary<string, string> keylist = new Dictionary<string,string>();
//...
}
So you'll need to move it outside, if that's your case.
I'm not sure exactly what your input string is or how you need to use it, though I think you're looking to split the input string and loop through along this line...
private Dictionary<string, string> GetData(string intext)
{
Dictionary<string, string> keylist = new Dictionary<string, string>();
string[] keywords = intext.Split(' ');
foreach (string s in keywords)
{
if (s.Contains("addkey") && s.Contains("def"))
{
string fkey = key1.Replace("_", " ");
string fdef = def2.Replace("_", " ");
keylist.Add(fkey, fdef);
say("Phrase '" + fkey + "' added with response '" + fdef + "'");
say("Your Dictionary contains " + keylist.Count.ToString() + " word(s).");
}
}
return keylist;
}
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