Dictionary
Represents a collection of keys and values.
Namespace: System.Collections.Generic
http://msdn.microsoft.com/en-us/library/xfhwa508.aspx
Sample code:
...
public Dictionary
new Dictionary
...
Some sample methods to work with Dictionary
// Fill the Dictionary
private void fillSeasonDic()
{
seasonDic.Add("Spring", Color.LightGreen);
seasonDic.Add("Summer", Color.Orange);
seasonDic.Add("Autumn", Color.LightYellow);
seasonDic.Add("Winter", Color.LightBlue);
}
// Using .TryGetType to find [value] corresponding to the [key]
private Color getSeasonColor(string seasonName)
{
Color retColor = Color.White;
if ( ! string.IsNullOrEmpty(seasonName))
if ( ! seasonDic.TryGetValue(seasonName, out retColor)
retColor = Color.White;
return retColor;
}
// Retrieve data from a Dictionary by Enumerator
private string getAllSeasons()
{
StringBuilder sbRetVal = new StringBuilder();
Dictionary
seasonDic.GetEnumerator();
while (sEnum.MoveNext())
sbRetVal.AppendLine(sEnum.Current.Key +
": " +
sEnum.Current.Value.Name);
return sbRetVal.ToString();
}
// Use [KeyValuePair] structure in a [foreach] loop
private string getAllColorSeasons()
{
StringBuilder sbRetVal = new StringBuilder();
foreach( KeyValuePair
sbRetVal.AppendLine(kvp.Value.Name + ": " + kvp.Key);
return sbRetVal.ToString();
}
private void btnGetAllSeason_Click(object sender, EventArgs e)
{
MessageBox.Show( this.getAllSeasons() +
"\r\n" +
this.getAllColorSeasons() );
}
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