c# - Winforms RadPageView 找控件

Question

我在 Winform 应用程序的 RadPageView 控件中嵌套了控件。 RadPageView 有一个子 RadPageViewPage。这两个控件位于窗体上，但是有一个选项卡控件，并且在该选项卡控件内动态添加了一些其他控件。如何通过单击按钮在动态生成的选项卡控件中查找和更改文本框的值。

public Form1()
    {
        InitializeComponent();

        TabControl tb = new TabControl();
        tb.Width = 500;
        TabPage tp = new TabPage("Tab 1");

        Label lb = new Label();
        lb.Text = "Test";
        lb.Location = new Point(10, 10);

        TextBox txt = new TextBox();
        txt.Text = "Textbox";
        txt.Location = new Point(200, 10);

        tp.Controls.Add(lb);
        tp.Controls.Add(txt);

        tb.Controls.Add(tp);

        radPageViewPage1.Controls.Add(tb);


    }

    private void button1_Click(object sender, EventArgs e)
    {

    }

Answer 1

我在 Internet 上找到了这个示例，它运行良好。

public Form1()
    {
        InitializeComponent();

        TabControl tb = new TabControl();
        tb.Width = 500;
        TabPage tp = new TabPage("Tab 1");

        Label lb = new Label();
        lb.Text = "Test";
        lb.Name = "lblTest";
        lb.Location = new Point(10, 10);

        TextBox txt = new TextBox();
        txt.Text = "Textbox";
        txt.Name = "txtName";
        txt.Location = new Point(200, 10);

        tp.Controls.Add(lb);
        tp.Controls.Add(txt);

        tb.Controls.Add(tp);

        radPageViewPage1.Controls.Add(tb);


    }

    private void button1_Click(object sender, EventArgs e)
    {
        var crl = FindControl("txtName");
        MessageBox.Show(crl.Text);
    }

    Control FindControl(string target)
    {
        return FindControl(this, target);
    }

    static Control FindControl(Control root, string target)
    {
        if (root.Name.Equals(target))
            return root;
        for (var i = 0; i < root.Controls.Count; ++i)
        {
            if (root.Controls[i].Name.Equals(target))
                return root.Controls[i];
        }
        for (var i = 0; i < root.Controls.Count; ++i)
        {
            Control result;
            for (var k = 0; k < root.Controls[i].Controls.Count; ++k)
            {
                result = FindControl(root.Controls[i].Controls[k], target);
                if (result != null)
                    return result;
            }
        }
        return null;
    }