1

每当我使用初始化组件时，我都会丢失我的数据，例如组合框中的选定索引。我尝试在表单加载中声明浏览器，然后只使用按钮下的加载 url 函数，但这不起作用。这是代码：

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/");
}
4

1 回答 1

0

您可以在 Form 构造函数中初始化 BrowserView，然后将其存储为私有字段，并在必要时使用此字段加载其他 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/");
        }
    }
}

如您所见，根本不需要InitializeComponent()多次调用。

于 2016-11-17T07:42:14.943 回答