Webrowser控件错误 [英] Error on webrowser control

问题描述

大家好，

我创建了一个浏览器，当
输入地址等.它工作正常，然后
开始给我发了一个错误:

所请求的站点不可用或找不到"

请任何帮助将被申请

这是我使用的代码

Hi all,

I created a broser that navigates to google maps when the
address etc. is typed in. It was working fine and then
started gining me an error:

"The requested site is unavailible or cannot be found"

Please any help would be appriciated

Here is the code I used

private void LoadMap()
        {
            int yCurrRow = dgvMeterDetails.CurrentRow.Index;

            strProvince = dgvMeterDetails["Province", yCurrRow].Value.ToString();
            strCity = dgvMeterDetails["City", yCurrRow].Value.ToString();
            strSuburb = dgvMeterDetails["Suburb", yCurrRow].Value.ToString();
            strStreetName = dgvMeterDetails["StreetName", yCurrRow].Value.ToString();
            strStreetNo = dgvMeterDetails["StreetNo", yCurrRow].Value.ToString();

            DataTable dt = new DataTable();

            try
            {
                StringBuilder OpenMap = new StringBuilder();
                OpenMap.Append("http://maps.googleapis.com/maps/api/staticmap?center=" + strProvince + "," + strCity + "," + strSuburb + "," + strStreetName + "," + strStreetNo + "&zoom=14&size=400x400&sensor=false");

                wbMap.Navigate(OpenMap.ToString());
            }

            catch (Exception ex)
            {
                MessageBox.Show(ex.Message.ToString(), "Unable To Load Web Browser");
            }
        }

推荐答案

首先，您错误地使用了StringBuilder.创建该类是为了避免在堆中重新创建字符串对象.因此，您应该使用Append方法而不是"+".但是实际上我建议您在这里使用String.Format，例如:

At first, you incorrectly use StringBuilder. This class was created to avoid recreating string objects in heap. So instead of "+" you should use Append method. But actually I recommend you to use String.Format here, here is example:

String.Format("http://maps.googleapis.com/maps/api/staticmap?center={0},{1},{2},{3},{4}&zoom=14&size=400x400&sensor=false", strProvince, strCity, strSuburb, strStreetName, strStreetNo)

关于错误，这就是它的意思.因此，如果您的网址无法使用该网站，则意味着该网站不可用.比较原始创建的URL与您的URL.

Regarding error, it is what it says. So if site is unavailable via your url this means that site is unavailable. Compare originally created URL with yours.

这篇关于Webrowser控件错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！