從文本文件導出數據到gridview

Question

我想從c＃中的文本文件導出數據到gridview。文本文件只包含數字。 文本文件格式 1313232,12323232,7676768,8786868 ......

我需要設置表格列爲10，然後是新行，直到文本文件中的數字完成。 謝謝。

Answer 1

我希望這不是你的功課。如果是這樣，請盡你的責任來改進這個有點代碼的代碼。您還必須使用System.IO讀入文件並將其存入字符串中。

ASP.NET

<asp:GridView ID="gvNumbers" runat="server" AutoGenerateColumns="true"></asp:GridView> 

C＃

var dt = new DataTable(); 
string fileText = "1313232 , 12323232, 7676768, 8786868,1313232 , 12323232, 7676768, 8786868,1313232 , 10, 7676768, 8786868,1313232 , 12323232, 7676768, 8786868,1313232 , 12323232, 7676768, 20,1313232 , 12323232, 7676768, 8786868,1313232 , 12323232, 7676768, 8786868,1313232 , 12323232, 7676768, 8786868,"; 
string[] nums = fileText.Split(','); 
//set up columns 
for (int i = 1; i < 11; i++) 
{ 
    dt.Columns.Add("Col" + i, typeof(int)); //add integer columns and name them 
} 
int colCount = 0; 
int[] oneRow = new int[10]; 
int n, failCount = 0; 
foreach (string s in nums) 
{ 
    if (int.TryParse(s, out n)) 
    { 
     oneRow[colCount] = n; 
     colCount++; 
    } 
    else //invalid integer 
    { 
     failCount++; //you could use this value if you want to see if the file was fully valid or not. 
    } 
    //check if row is complete 
    if (colCount == 10) 
    { 
     dt.Rows.Add(oneRow[0], oneRow[1], oneRow[2], oneRow[3], oneRow[4], oneRow[5], oneRow[6], oneRow[7], oneRow[8], oneRow[9]); 
     colCount = 0; 
     oneRow = new int[10]; //reset array 
    } 
} 
if (colCount > 0) dt.Rows.Add(oneRow[0], oneRow[1], oneRow[2], oneRow[3], oneRow[4], oneRow[5], oneRow[6], oneRow[7], oneRow[8], oneRow[9]); //add final incomplete row 

//reference the DataTable as a source to the GridView and bind it. 
gvNumbers.DataSource = dt; 
gvNumbers.DataBind();