clearing data from excel sheet

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Hi,
I have an application by which a user enters his task in the form aft every specific time interval and the data entered is inserted into the excel sheet.The form has a link to the report of excel sheet where all the data is stored.so each time I m pressing the link,the data entered is getting multiplied.Is there anyway so that I can clear the excel sheet before I insert the data in my program.I have tried the sql queries like delete and updating each column to null.But none worked.plz help...
Thnx in advance.

Posted 12-Aug-11 0:14am

AC777

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Wendelius · Answer 1 · 2011-08-12T00:30:00

Solution 1

Can you use Clear method: http://msdn.microsoft.com/en-us/library/aa223824(v=office.11).aspx[^]

Posted 12-Aug-11 0:30am

Wendelius

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AC777 12-Aug-11 6:59am

no it didnt work...I am using oledb connection for connecting to excel.My code for inserting the non repetitive tasks into the excel sheet is like this...

for (int i = 0; i < NonRepTasks.Count; i++)
{
sql = "Insert into [Sheet1$] values( '" + NonRepTasks[i] + "','"
+ FinalTime[i] + "','" + Completion[i] + "','" + Status[i] + "')";
myCommand.CommandText = sql;
myCommand.ExecuteNonQuery();
}

Tell me what I shud add b4 the for loop to clear my excel sheet 1 retaining the column names.

Wendelius 12-Aug-11 7:16am

Ok, So if you're using Oledb have you tried updating every column to NULL before inserts. If I recall correctly DELETE won't work, but there's no harm in trying that also.

AC777 16-Aug-11 1:39am

I have tried that too...it didnt work...shows a syntax error always even when my syntax is correct

Wendelius 17-Aug-11 11:39am

Can you post the update statement and the full error message?