Omi Omi - 1 year ago 243
SQL Question

The conversion of a nvarchar data type to a datetime data type resulted in an out-of-range value?

I am trying to insert date in my database table through a textbox. But even if I am converting the string into Datetime I am still getting this error :

"The conversion of a nvarchar data type to a datetime data type resulted in an out-of-range value".

I have taken datetime datatype in my database. This is my code :


SqlCommand cmd = new SqlCommand(@"INSERT INTO tblProject(project_starting_date,project_ending_date)values(@projectstartingdate,@projectendendingdate)", objconn);
// cmd.Parameters.AddWithValue("@projectstartingdate", DateTime.Parse(txtStartingdate.Text).ToString());
//cmd.Parameters.AddWithValue("@projectendendingdate", DateTime.Parse(txtProjectendingdate.Text).ToString());
DateTime stdate;
if(DateTime.TryParse(txtStartingdate.Text, out stdate))
SqlParameter projstrtdate = new SqlParameter("@projectstartingdate", SqlDbType.DateTime);
projstrtdate.Value = stdate;
DateTime enddate;
if (DateTime.TryParse(txtProjectendingdate.Text, out enddate))
// cmd.Parameters.AddWithValue("@projectendendingdate", enddate);
SqlParameter projenddate = new SqlParameter("@projectendendingdate", SqlDbType.DateTime);
projenddate.Value = enddate;

if (objconn.State == ConnectionState.Closed)


norowaffected = cmd.ExecuteNonQuery();
catch (Exception ex)
Response.Write( ex.ToString());

Please guide me where I am doing wrong?

Answer Source

Probably your locale configuration is trying to convert the data string in a wrong unexpected format.

Try with the following:

if(DateTime.TryParse(txtStartingdate.Text, out stdate)
    SqlParameter projectStartingDateParam = new SqlParameter("@projectstartingdate", SqlDbType.DateTime);
        projectStartingDateParam.Value = stdate;

Do the same with "projectendingdate". Create a SqlParameter with SqlDbType equals to SqlDbType.DateTime and add it to the query command (cmd variable).

If this dosen't work, double check your table structure if it's in DateTime format. Do a manually insert directly in database via SQL Server Management Studio.

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