如何在不使用initialize组件的情况下导航浏览器?

Question

每当我使用initialize组件时，我就会丢失数据，例如组合框上选择的索引。我尝试在表单加载中声明浏览器，然后在按钮下使用加载url函数，但这不起作用。下面是代码:

int tracker;
    string LocationTracker;
    tracker = (cbEventsList.SelectedIndex);

    lblLocation.Text = cData[tracker];
    LocationTracker = cData[tracker];

    //In this button the program takes the information previosuly entered into the Enter Event Tab and loads it on the lab
    //InitializeComponent();
    // BrowserView browserView = new WinFormsBrowserView();
    // Controls.Add((Control)browserView);
    browserView.Browser.LoadURL("https://www.google.com/maps/place/" + cData[tracker]);

}
private void btnLoadNew_Click(object sender, EventArgs e)
{
    InitializeComponent();
    BrowserView browserView = new WinFormsBrowserView();
    Controls.Add((Control)browserView);
    browserView.Browser.LoadURL("https://www.google.com/maps/place/");
}
private void MapView_Load(object sender, EventArgs e)
{
    //   btnLoadNew.Visible = false;
    InitializeComponent();
    BrowserView browserView = new WinFormsBrowserView();
    Controls.Add((Control)browserView);
    browserView.Browser.LoadURL("https://www.google.com/maps/place/");
}

Answer 1

你可以在Form构造函数中初始化BrowserView，然后将其存储为私有字段，并在必要时使用该字段加载其他url:

using DotNetBrowser;
using DotNetBrowser.WinForms;
using System;
using System.Windows.Forms;
namespace WinFormsSampleCS
{
    public partial class Form1 : Form
    {
        private BrowserView browserView;
        public Form1()
        {
            InitializeComponent();
            browserView = new WinFormsBrowserView();
            Controls.Add((Control)browserView);
            //Load initial URL here, if necessary 
            browserView.Browser.LoadURL("https://www.google.com/maps/place/");
        }
        private void btnLoadNew_Click(object sender, EventArgs e)
        {
            //load another URL on button click
            browserView.Browser.LoadURL("https://www.google.com/maps/place/");
        }
    }
}

正如您所看到的，根本没有必要多次调用InitializeComponent()。