Retrieve all rows from DataTable in asp.net - asp.net

Question

I have created a temporary datatable to store temporary data before send it to database. But after creating that now i want to fetch all the rows from this temporary datatable and save them to data base. For this i loop my datatable using foreach loop
foreach(DataRow r in dt.Rows)
{
string Fname = dt.Rows[0]["Name"].ToString();
string cType = dt.Rows[0]["ContentType"].ToString();
byte[] ePic = (byte[])dt.Rows[0]["pic"];
BAL.saveEventPictures(Convert.ToInt32(lblEventID.Text), Fname, cType, ePic);
}
The problem is that it only fetch the data of first row again and again for the whole loop count. Like if I have 4 datarows with different information, then this will store the data of 1st row in the database for 4 times. What mistake am i doing?

Answer 1

dt.Rows[0] means you are always accessing the first row of your DataTable.You need to use a for loop instead of a foreach and use i to access each index of your table:
for (int i = 0; i < dt.Rows.Count; i++)
{
string Fname = dt.Rows[i]["Name"].ToString();
string cType = dt.Rows[i]["ContentType"].ToString();
byte[] ePic = (byte[])dt.Rows[i]["pic"];
BAL.saveEventPictures(Convert.ToInt32(lblEventID.Text), Fname, cType, ePic);
}

Answer 2

You can use for loop to fetch all value regarding their columns in datatable to assign value in their variables so you can use this way. Because if you use hard coded index of datatable rows then it should fetch only single data every time.
Here i is index of rows and column name to get value from rows. So use dynamically based indexing use for get all records.
for (int i = 0; i < dt.Rows.Count; i++)
{
string Fname = dt.Rows[i]["Name"].ToString();
string cType = dt.Rows[i]["ContentType"].ToString();
byte[] ePic = (byte[])dt.Rows[i]["pic"];
BAL.saveEventPictures(Convert.ToInt32(lblEventID.Text), Fname, cType, ePic);
}