动态添加的winforms控件不显示?

时间:2015-11-27 18:38:29

标签: c# winforms

我有这个自定义控件,它基本上是一个面板:

class ResultPanel : Panel {
    Label scoreValueLabel = new Label();

    public ResultPanel() : base(){
        scoreValueLabel.AutoSize = true;
        scoreValueLabel.Font = new System.Drawing.Font("Microsoft Sans Serif", 15F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
        scoreValueLabel.Location = new System.Drawing.Point(265, 99);
        scoreValueLabel.Name = "scoreValueLabel";
        scoreValueLabel.Size = new System.Drawing.Size(49, 25);
        scoreValueLabel.TabIndex = 10;
        scoreValueLabel.Text = "+10";
        Controls.Add(scoreValueLabel);
    }
}

我正在尝试将其添加到事件处理程序中的面板:

private void ResultsReceivedHandler(object sender, List<QuestionResult> results) {

        ResultPanel resultPanel = new ResultPanel();
        allResultsPanel.Controls.Add(new ResultPanel());
        resultPanel.Anchor = ((AnchorStyles.Top | AnchorStyles.Left) | AnchorStyles.Right);
        resultPanel.BorderStyle = BorderStyle.FixedSingle;
        resultPanel.Location = new Point(0, 155);
        resultPanel.Name = "questionResultPanel";
        resultPanel.Size = new Size(325, 148);
        resultPanel.TabIndex = 0;

    }

我知道ResultPanel的一个实例可以显示在allResultsPanel中,因为我已经(使用设计器视图)将一个ResultPanel添加到allResultsPanel,它与allResultsPanel顶部的大小相同并显示。

allResultsPanel只是一个普通的面板btw,它的大小足以适应控件,因为它的高度为800.

那么为什么我能看到通过设计视图添加的控件而不是动态添加的控件?

1 个答案:

答案 0 :(得分:1)

设置resultPanel时:

ResultPanel resultPanel = new ResultPanel();
resultPanel.Anchor = ((AnchorStyles.Top | AnchorStyles.Left) | AnchorStyles.Right);
resultPanel.BorderStyle = BorderStyle.FixedSingle;
resultPanel.Location = new Point(0, 155);
resultPanel.Name = "questionResultPanel";
resultPanel.Size = new Size(325, 148);
resultPanel.TabIndex = 0;

您正在向allResultsPanel

添加另一个新面板
allResultsPanel.Controls.Add(new ResultPanel());