在运行时使用文本文件填充Gridview [英] Populate Gridview at runtime using textfile

问题描述

对于许多人来说，似乎是一个简单的问题，但是我想要做的是我正在使用 StreamReader （ASP）点击事件阅读文本文件.net& C＃）读取该文本文件后，我用，分隔符分隔每一行，然后它的每一部分都存储在 Datatable的列中，然后绑定datatable到我的gridview，我的问题是我已经编写了代码，但是我得到这样的空gridview这样

Gridviews列标题我从设计器创建了 autogeneratecolumns =false / p>

我的代码是

  protected void readfile_Click（object sender，EventArgs e ）
 {
 string line; 
 DataTable dt = new DataTable（）; 
 using（StreamReader sr = new StreamReader（@D：\Temp\fileread\readtext.txt））
 {
 while（（line = sr.ReadLine（）） ！= null）
 {
 string [] parts = line.Split（'，'）; 
 dt.Rows.Add（）; （int i = 0; i< parts.Length; i ++）
 {
 dt.Columns.Add（）; 
 
 dt.Rows [0] [i] = parts [i]; 
 MyGridView.DataSource = dt; 
 MyGridView.DataBind（）; 
} 
} 
 sr.Close（）; 
} 
  

我的文本文件有数据

  1,1,4,2，＃，描述1 
 5,5,4,2，＃，描述2 
 3,3 ，6,3，＃，描述3 
 2,2,4,2，＃，描述4 
 4,5,4,2，＃，描述5 
  

希望你得到我想要的东西。

解决方案

如何这样做：

  protected void readfile_Click（object sender，EventArgs e）
 {
 DataTable table = new DataTable（）; 
 table.Columns.Add（行号）; 
 table.Columns.Add（Col No.）; 
 table.Columns.Add（宽）; 
 table.Columns.Add（Height）; 
 table.Columns.Add（Image URL）; 
 table.Columns.Add（Description）; 
 
 using（StreamReader sr = new StreamReader（@D：\Temp\fileread\readtext.txt））
 {
 while（！sr.EndOfStream） 
 {
 string [] parts = sr.ReadLine（）。Split（'，'）; 
 table.Rows.Add（parts [0]，parts [1]，parts [2]，parts [3]，parts [4]，parts [5]）; 
} 
} 
 MyGridView.DataSource = table; 
 MyGridView.DataBind（）; 
} 
  




it may seem to be simple problem to many of you, but want i am trying to do is i am reading a text file on a click event using StreamReader (ASP.net & C#) after reading that text file i am splitting each line with ',' delimiter and then each part of it i am storing in Datatable's column and then binding the datatable to my gridview, my problem is i have written the code but i m getting empty gridview like this

Gridviews Column header i have created from designer with autogeneratecolumns="false"

my code is

protected void readfile_Click(object sender, EventArgs e)
{
    string line;
    DataTable dt = new DataTable();
    using (StreamReader sr = new StreamReader(@"D:\Temp\fileread\readtext.txt"))
    {
        while ((line = sr.ReadLine()) != null)
        {
            string[] parts = line.Split(',');
            dt.Rows.Add();
            for (int i = 0; i < parts.Length; i++)
            {
                dt.Columns.Add();
                dt.Rows[0][i] = parts[i];
                MyGridView.DataSource = dt;
                MyGridView.DataBind();
            }
        }
        sr.Close();
    }

my text file has data

1,1,4,2,"#",Description1
5,5,4,2,"#",Description2
3,3,6,3,"#",Description3
2,2,4,2,"#",Description4
4,5,4,2,"#",Description5

Hope you got it what i am trying to ask.

解决方案

How about something like this:

    protected void readfile_Click(object sender, EventArgs e)
    {
        DataTable table = new DataTable();
        table.Columns.Add("Row No.");
        table.Columns.Add("Col No.");
        table.Columns.Add("Width");
        table.Columns.Add("Height");
        table.Columns.Add("Image URL");
        table.Columns.Add("Description");

        using (StreamReader sr = new StreamReader(@"D:\Temp\fileread\readtext.txt"))
        {
            while (!sr.EndOfStream)
            {
                string[] parts = sr.ReadLine().Split(',');
                table.Rows.Add(parts[0], parts[1], parts[2], parts[3], parts[4], parts[5]);
            }
        }
        MyGridView.DataSource = table;
        MyGridView.DataBind();
    }

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