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《Button》文本视窗7
原标题:Change Button Text - Windows Phone 7

您如何改变视窗7和C#的子吨案文? Null Pointer 例外,如果我正在改变纽芬兰文,问题是什么?

public void CreateWords(Word[] theWords)
{
    listOfWords = new Button[theWords.Length]; //Button Array
    textBlock1.Text = theWords[0].getWord(); //Totally Works
    for (int i = 0; i < theWords.Length; i++)
    {
        listOfWords[i].Content = theWords[0].getWord(); //NullPointer Exception
    }

    for (int i = 0; i < theWords.Length; i++)
    {
        stackWords.Children.Add(listOfWords[i]);
    }
}
最佳回答

你重读了<条码>NullReferenceException,因为虽然你建立了新的布顿阵列,但你还是初步确定了该阵列的任何要素(每个要素仍然无效)。

问题回答

正如Justin先前说过的那样,你刚刚创建了布顿型号的阿雷,但你至今还没有把布特纳列入阿雷。 你们需要明确将阿雷拉的每个指数确定为布塔顿: 这样做。

for (int i = 0; i < theWords.Length; i++) 
{ 
    listOfWords[i] = new Button();
    listOfWords[i].Content = theWords[0].getWord(); //NullPointer Exception 
} 




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