TECHNOLOGIES
FORUMS
JOBS
BOOKS
EVENTS
INTERVIEWS
Live
MORE
LEARN
Training
CAREER
MEMBERS
VIDEOS
NEWS
BLOGS
Sign Up
Login
No unread comment.
View All Comments
No unread message.
View All Messages
No unread notification.
View All Notifications
Answers
Post
An Article
A Blog
A News
A Video
An EBook
An Interview Question
Ask Question
Forums
Monthly Leaders
Forum guidelines
Safeer Safeer
NA
201
38.2k
i got a error like this but it's saving in database
Aug 1 2013 3:09 AM
it's saving fine .., but after that one message box showing object reference can not set to an instance of an object
here it is form button save ()
private void btnSave_Click(object sender, EventArgs e)
{
try
{
memberinfo infomember = new memberinfo();
houseinfo infohouse = new houseinfo();
membersp spmember = new membersp();
housesp sphouse = new housesp();
infohouse.houseNo = decimal.Parse(txthouse.Text);
infohouse.Address = txtaddress.Text;
infohouse.owner = txtowner.Text;
infohouse.phone = decimal.Parse(txtphone.Text);
int houseId = sphouse.houseadd(infohouse);
if (dataGridView1.RowCount > 0)
{
for (int i = 0; i <= dataGridView1.Rows.Count - 1; i++)
{
string col1 = dataGridView1.Rows[i].Cells["txtName"].Value.ToString();
string col2 = dataGridView1.Rows[i].Cells["txtAge"].Value.ToString();
string col3 = dataGridView1.Rows[i].Cells["cmbSex"].Value.ToString();
string col4 = dataGridView1.Rows[i].Cells["cmbRelation"].Value.ToString();
string col5 = dataGridView1.Rows[i].Cells["txtOccupation"].Value.ToString();
infomember.houseId = houseId;
infomember.Name = col1;
infomember.Age =decimal.Parse( col2);
infomember.Sex = col3;
infomember.Relation = col4;
infomember.Occupation = col5;
spmember.memberadd(infomember);
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
and the housesp
public int houseadd(houseinfo infohouse)
{
int houseId;
try
{
if (sqlcon.State == ConnectionState.Closed)
{
sqlcon.Open();
}
SqlCommand c = new SqlCommand("houseadd", sqlcon);
c.CommandType = CommandType.StoredProcedure;
c.Parameters.Add("@houseNo", SqlDbType.Decimal).Value = infohouse.houseNo;
c.Parameters.Add("@Address", SqlDbType.VarChar).Value = infohouse.Address;
c.Parameters.Add("@phone", SqlDbType.Decimal).Value = infohouse.phone;
c.Parameters.Add("@owner", SqlDbType.VarChar).Value = infohouse.owner;
houseId = Convert.ToInt32(c.ExecuteScalar());
if (houseId > 0)
{
MessageBox.Show("Saved");
}
}
catch (Exception)
{
throw;
}
finally
{
sqlcon.Close();
}
return houseId;
and the membersp
public int memberadd(memberinfo infomember)
{
int memberId;
try
{
if (sqlcon.State == ConnectionState.Closed)
{
sqlcon.Open();
}
SqlCommand c = new SqlCommand("memberadd", sqlcon);
c.CommandType = CommandType.StoredProcedure;
c.Parameters.Add("@houseId", SqlDbType.Decimal).Value = infomember.houseId;
c.Parameters.Add("@Name", SqlDbType.VarChar).Value = infomember.Name;
c.Parameters.Add("@Age", SqlDbType.Decimal).Value = infomember.Age;
c.Parameters.Add("@Sex", SqlDbType.VarChar).Value = infomember.Sex;
c.Parameters.Add("@Relation", SqlDbType.VarChar).Value = infomember.Relation;
c.Parameters.Add("@Occupation", SqlDbType.VarChar).Value = infomember.Occupation;
memberId = Convert.ToInt32(c.ExecuteScalar());
if (memberId > 0)
{
MessageBox.Show("Saved");
}
}
catch (Exception)
{
throw;
}
finally
{
sqlcon.Close();
}
return memberId;
}
}
Reply
Answers (
2
)
SQL Command type
KeypressEvent in C#