如何通过函数上的键获取字典值?
我的函数代码(和我尝试的命令不工作):
static void XML_Array(Dictionary<string, string> Data_Array)
{
String xmlfile = Data_Array.TryGetValue("XML_File", out value);
}
我的按钮代码:
private void button2_Click(object sender, EventArgs e)
{
Dictionary<string, string> Data_Array = new Dictionary<string, string>();
Data_Array.Add("XML_File", "Settings.xml");
XML_Array(Data_Array);
}
我想对XML_Array函数的变量是:
string xmlfile = "Settings.xml":
当前回答
Dictionary<String, String> d = new Dictionary<String, String>();
d.Add("1", "Mahadev");
d.Add("2", "Mahesh");
Console.WriteLine(d["1"]); // It will print Value of key '1'
其他回答
private void button2_Click(object sender, EventArgs e)
{
Dictionary<string, string> Data_Array = new Dictionary<string, string>();
Data_Array.Add("XML_File", "Settings.xml");
XML_Array(Data_Array);
}
static void XML_Array(Dictionary<string, string> Data_Array)
{
String xmlfile = Data_Array["XML_File"];
}
static void XML_Array(Dictionary<string, string> Data_Array)
{
String value;
if(Data_Array.TryGetValue("XML_File", out value))
{
// ... Do something here with value ...
}
}
Dictionary<int,string> dict = new Dictionary<int,string>{
{1,"item1"},
{2,"item2"},
{3,"item3"},
}
int key = 2 // for example
string result = dict.ContainsKey(key) ? dict[key] : null;
if (Data_Array["XML_File"] != "") String xmlfile = Data_Array["XML_File"];
Dictionary<String, String> d = new Dictionary<String, String>();
d.Add("1", "Mahadev");
d.Add("2", "Mahesh");
Console.WriteLine(d["1"]); // It will print Value of key '1'
