Question

我正在尝试将数据从文本文件导出到c＃中的gridview。仅包含数字的文本文件。文本文件格式 1313232,12323232,7676768,8786868，......

我需要将表列设置为10然后新行，直到文本文件中的数字结束。感谢。

Answer 1

我希望这不是你的功课。如果是的话，请你有责任改进这个有点笨拙的代码。您还必须使用System.IO读入文件并将其放入字符串中。

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();

将数据从文本文件导出到gridview

1 个答案: