How to write datatable result in textfile

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Hi sir ,
I am uday

I am developing application in c sharp win form
I want emails from email table

I am retriving it from table and binding it in datatable

My datatable contains 1,00,000 emails.
And i want to store it on text file format.

please solve my problem

Thanks

Posted 23-Aug-11 22:57pm

udusat13

Updated 23-Aug-11 23:15pm

v3

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walterhevedeich 24-Aug-11 5:13am

What is the data type of the email field on your database? Do you want to write 1 file for each email?

3 solutions

Solution 1

Out of box suggestion. OSQL can help you.
http://msdn.microsoft.com/en-us/library/aa214012(v=sql.80).aspx[^]

Posted 23-Aug-11 23:10pm

Prerak Patel

Comments

udusat13 24-Aug-11 5:16am

I am confuse.please give me solution

Solution 3

C#

DataTable table = // You data table values;

       var result = new StringBuilder(); 
        foreach (DataRow row in table.Rows)         
        {             
            for (int i = 0; i < table.Columns.Count; i++)             
            {                 
                result.Append(row[i].ToString());                 
                result.Append(i == table.Columns.Count - 1 ? "\n" : ",");             
            }
            result.AppendLine();
        }

        StreamWriter objWriter = new StreamWriter("C:\\test.txt", false);
        objWriter.WriteLine(result.ToString());
        objWriter.Close();

Hope this help!

Posted 23-Aug-11 23:51pm

senthil sennu

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Md. Rashim Uddin · Accepted Answer · 2011-08-23T23:40:00

Hi, This is easy. I have given you a Example

C#

public static void WriteDataToFile(DataTable submittedDataTable, string submittedFilePath)
        {
            int i = 0;
            StreamWriter sw = null;

            sw = new StreamWriter(submittedFilePath, false);

            for (i = 0; i < submittedDataTable.Columns.Count - 1; i++)
            {

                sw.Write(submittedDataTable.Columns[i].ColumnName + ";");

            }
            sw.Write(submittedDataTable.Columns[i].ColumnName);
            sw.WriteLine();

            foreach (DataRow row in submittedDataTable.Rows)
            {
                object[] array = row.ItemArray;

                for (i = 0; i < array.Length - 1; i++)
                {
                    sw.Write(array[i].ToString() + ";");
                }
                sw.Write(array[i].ToString());
                sw.WriteLine();

            }

            sw.Close();
        }

As you have DataTable and FilePath Just Pass it to this Method and it will write the data to your file.

Thanks,
Rashim