How to build dynamic string controlled by config File

You can create an ApplictionSetting using the Visual Studio Designer of Type 'HashTable if you need to have several key-value pairs of Type 'string or any other Type.

1. go into your Project's Properties folder in the Property Broweser, and double-click Settings.Settings: this will bring up the Settings Designer.

2. create a new setting by clicking in one of the blank rows of the Settings display Grid.

3. click on the 'Type menu-option to open the Type Browser: click 'Browse: open mscorlib/Collections.Generic and selct 'HashTable.

4. Set the setting scope to 'User, and give the new Setting an appropriate name; we'll use "HashSetting" for this example (no quotes).

In code, to use the Hash Setting:

private Hashtable Hash;

private void btbAddToHash_Click(object sender, EventArgs e)
{
    Hash = new Hashtable
    {
        {"string1", "outcome1"},
        {"string2", "outcome2"}
    };

    // assign the current HashTable to the Setting's HashTable
    Properties.Settings.Default.HashSetting = Hash;

    // save the modified Setting(s)
    Properties.Settings.Default.Save();
}

// get a HashValue using its index
private string GetHashValue(string hashKey)
{
    return (string) Properties.Settings.Default.Hash1[hashKey];
}

// test in some method or EventHandler:
// assumes 'btnAddToHash was clicked before calling this

// test 1
string test1 = (string)Properties.Settings.Default.Hash1["string1"];

// test 2
string test2 = GetHashValue("string2");

Console.WriteLine("{0} : {1}", test1, test2);