C#实现从Web服务器文本文件动态读取内容并添加至ListBox

Alright, let's walk through how you solved this problem (with a big shoutout to David.Warwick for the assist!)—this will be super helpful for others trying to pull dynamic list content from a remote text file into a ListBox.

You wanted to:

• Pull content from a text file hosted on a web server
• Extract just the game values (like x, x2, x3) and display them as individual entries in a ListBox
• Have any new entries added to the text file automatically show up in the ListBox without modifying code

You made two key adjustments to get this working smoothly:

1. Updated Text File Format #

You revised the separators in your remote text file to simplify parsing:

• Use * to split individual entries (replacing the original colon-heavy line structure)
• Use , to separate the game value from other associated data in each entry

Example updated text file content:

x,y* x2,y2* x3,y3

2. Modified C# Implementation #

You adjusted your code to split the downloaded content correctly and loop through each entry to extract the game value:

string RetrieveList;
WebClient con = new WebClient();
RetrieveList = con.DownloadString("com.com/data.txt");
// Split the full string into individual entries using *
string[] sLines = RetrieveList.Split('*'); 
foreach (string sLine in sLines)
{
    // Extract the first part (game value) before the comma
    string sGameValue = sLine.Split(',')[0];
    gameList.Items.Add(sGameValue);
}

• WebClient.DownloadString() fetches the entire content of the remote text file
• Splitting on * creates an array of all individual game entries
• For each entry, splitting on , and taking the first element grabs exactly the game name you want to display
• Adding each game name to gameList.Items ensures they appear as separate entries in the ListBox
• Any new entries added to the text file (formatted as newGameName,newImageValue*) will automatically be picked up next time the code runs—no code edits required!

内容的提问来源于stack exchange，提问作者beamed