动态创建的动态RadioButtonsList

Question

我正在研究一个有趣的“调查”表单，并试图通过过程复杂化来分解乏味。我有一组radiobuttonlists，我想动态创建一个名称和一串值的字符串。这些值不是问题。它创建了我无法弄清的所有单选按钮列表。

比如我可以继续这样做：

string[] level = {"Expert", "Proficient", "Limited Experience", "No Experience"}; 

    this.rblCSharp.Items.Clear(); 
    for (int i = 0; i < level.GetLength(0); i++) { 
     this.rblCSharp.Items.Add(level[i]); 
    } 
    this.rblCSharp.RepeatDirection = RepeatDirection.Horizontal; 


    this.rblVbNet.Items.Clear(); 
    for (int i = 0; i < level.GetLength(0); i++) 
    { 
     this.rblVbNet.Items.Add(level[i]); 
    } 
    this.rblVbNet.RepeatDirection = RepeatDirection.Horizontal; 

...但我不想。我想要做的事更是这样的：

string[] level = {"Expert", "Proficient", "Limited Experience", "No Experience"}; 

    string[] language = { "CSharp", "VbNet", "VbClassic", "Crystal", "Ssrs", "Sql2005", "UiWeb" }; 

    for (int j = 0; j < language.GetLength(0); j++) { 
     this.rbl[j].Items.Clear(); 
     for (int i = 0; i < level.GetLength(0); i++) { 
      this.rbl[j].Items.Add(level[i]); 
     } 
     this.rbl[j].RepeatDirection = RepeatDirection.Horizontal; 
    } 

Answer 1

您需要一种方式来引用对应语言的单选按钮列表控件。你有一个字符串数组，所以一种方法是使用FindControl，但这不是我的偏好。

另一种方法是：

var languageControls = new List<RadioButtonList> { rblCSharp, rblVbNet, rblVbClassic, rblCrystal, rblSsrs, rblSql2005, rblUiWeb }; 

foreach(var rbl in languageControls) 
{ 
    rbl.Items.Clear(); 
    // this could be a foreach instead, but I kept your original code 
    for (int i = 0; i < level.GetLength(0); i++) 
    { 
     rbl.Items.Add(level[i]); 
    } 
    rbl.RepeatDirection = RepeatDirection.Horizontal; 
} 

---

的的FindControl方法（这才有意义，如果你动态地创建并添加了单选按钮列表控件，而不是标记，并通过智能感知可用），

string[] level = {"Expert", "Proficient", "Limited Experience", "No Experience"}; 
string[] language = { "CSharp", "VbNet", "VbClassic", "Crystal", "Ssrs", "Sql2005", "UiWeb" }; 

foreach (string lang in language) 
{ 
    RadioButtonList rbl = (RadioButtonList)FindControl("rbl" + lang); 
    if (rbl == null) 
     continue; // keep going through the rest, or throw exception 

    rbl.Items.Clear(); 
    // this could be a foreach instead, but I kept your original code 
    for (int i = 0; i < level.GetLength(0); i++) 
    { 
     rbl.Items.Add(level[i]); 
    } 
    rbl.RepeatDirection = RepeatDirection.Horizontal; 
}