How do I access a control from a built string(control name)?

Question

Problem code:

for (int i = 0; i <= numberOfPlayers - 1; i++)
{
    if (i == dealerPosition())
    {
        StringBuilder sb = new StringBuilder();

        // e.g. outputs "tbPosition1"
        sb.Append("tbPosition").Append(dealerPosition().ToString()); 

        // The following line of code does not work as sb is a string containing 
        // "thPosition1", not my controller tbPosition1. How do I fix this?
        Dispatcher.Invoke(() => { (sb.Text = dealerPosition().ToString(); });
        break;
    }
}

Using C#, WPF, Visual Studio.

Answer 1

    sb.Append("tbPosition").Append(dealerPosition().ToString()); 

    // The following line of code does not work as sb is a string containing 
    // "thPosition1", not my controller tbPosition1. How do I fix this?
    Dispatcher.Invoke(() => { ((this.FindName(sb.ToString()) as TextBox).Text  = dealerPosition().ToString(); });

From Complexity's comment though, the post mentions that you can add all of your elements into the list and loop / foreach that when you want to work on it:

List<TextBox> textBoxesToEdit = new List<TextBox>(){tbposition1, tbposition2 /*so on*/};

foreach (TextBox textbox in textBoxesToEdit)
{
  //do stuff
}

Answer 2

FindName() 应该可以帮助您 ，但是请注意，如果在最初创建控件后添加它们，则可能必须在创建每个控件时对其进行注册 。

Answer 3

In line with your answer to my quetion I would store my tdPositionXYZ in an array or List and do this instead of all of your code:

Dispatcher.Invoke(() => {
    tbPositionArray[dealerPosition()].Text = dealerPosition().ToString();
});