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ComboBox初始化
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// 有三種方式使用ComboBox | |
// 直接看例子比較快 | |
// 法一:純文字 | |
cbxAuthLevel.Items.Add("選項一"); | |
cbxAuthLevel.Items.Add("選項二"); | |
cbxAuthLevel.Items.Add("選項三"); | |
cbxAuthLevel.Text //<-- 操作時,使用此屬性 | |
// 法二:用Items屬性初始化,搭配KeyValuePair。 | |
//# init. : cbxAuthLevel | |
foreach (AuthenticationLevel c in Enum.GetValues(typeof(AuthenticationLevel))) | |
cbxAuthLevel.Items.Add(new KeyValuePair<AuthenticationLevel, string>(c, c.ToString())); | |
cbxAuthLevel.ValueMember = "Key"; //<-- 記得要指定 Key, Value | |
cbxAuthLevel.DisplayMember = "Value"; | |
cbxAuthLevel.SelectedIndex = 0; | |
cbxAuthLevel.SelectedItem //<-- 操作時,使用此屬性 | |
// 法三:用DataSource屬性初始化,搭配 ArrayList、KeyValuePair。 | |
//# init. : cbxAuthLevel | |
ArrayList authLevelItems = new ArrayList(); | |
foreach (AuthenticationLevel c in Enum.GetValues(typeof(AuthenticationLevel))) | |
authLevelItems.Add(new KeyValuePair<AuthenticationLevel, string>(c, c.ToString())); | |
cbxAuthLevel.ValueMember = "Key"; | |
cbxAuthLevel.DisplayMember = "Value"; | |
cbxAuthLevel.DataSource = authLevelItems; // 好處是 Data Source 可共用。 | |
cbxAuthLevel.SelectedValue //<-- 操作時,使用此屬性 |
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