comboBox綁定字典Dictionary 獲取value中的值

第一種 最簡潔的方法

Dictionary<string, string> list = new Dictionary<string, string> { {"this is i1", "001"}, {"this is i2", "002"} };

private void Form1_Load(object sender, EventArgs e) {

comboBox1.Items.AddRange(list.Keys.ToArray());

}

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e) {

string a = list[comboBox1.SelectedText];

textBox1.Text = a;

}

 

第二種 笨點的方法

綁定數據

private void Form1_Load(object sender, EventArgs e) {

var list = new Dictionary<string, string> { {"this is i1", "001"}, {"this is i2", "002"} };

comboBox1.Items.AddRange(new object[] {list.ToArray()});

comboBox1.DisplayMember = "key";

comboBox1.ValueMember = "value";

}

//綁定數據 以上方法失效用這個方法
Dictionary<string, string> dict = new Dictionary<string, string> {{"baidu.com", "百度"}, {"goolge.com", "谷歌"}, {"qq.com", "騰訊"}};
comboBox1.DataSource = new BindingSource(dict, null);
comboBox1.ValueMember = "Key";//文本對應的值
comboBox1.DisplayMember = "Value";//顯示的文本

獲取值

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e) {

string a = ((KeyValuePair<string, string>)comboBox1.SelectedItem).Value;

textBox1.Text = a;

}