How Can I Auto Increment Month In Date Format In Asp.Net ?

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i am facing a problem in auto increment,
it increments month by one but not the way i want ..
I want the month number should be increment each time in for loop,but here in my code it increments for 1 time and rest of the entries are same ..
output should be:if current date is 13/3/2014
then--for i=0 > 13/4/2014
i=1 > 13/5/2014
i=2 > 13/6/2014...

here i my code..

C#

for (int i = 0; i <= int.Parse(txt_bank1.Text); i++)
            {
              
                DateTime InstallDate =Convert.ToDateTime(txt_dated.Text);
               
                DataTable dt = conn.filldatatable("ERP.sp_InstallmentMaster_Insert '" + txt_enqno.Text + "'," + Convert.ToDecimal(txt_monthInstall.Text) + ",'" + InstallDate + "','0'," + Convert.ToDecimal(txt_monthInstall.Text) + ",'True'");

            }

please do suggest a better way.

Posted 12-Mar-14 23:50pm

rahulDer

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OriginalGriff · Answer 1 · 2014-03-13T00:25:00

Start by moving some of the code outside the loop:

C#

decimal month;
if (!decimal.TryParse(txt_monthInstall.Text, out month))
    {
    // Report input problem to user
    }
else
    {
    DateTime InstallDate;
    if (!DateTime.TryParse(txt_dated.Text, out InstallDate))
        {
        // Report input problem to user
        }
    else
        {
        for (int i = 0; i <= int.Parse(txt_bank1.Text); i++)
            {
            conn.filldatatable("ERP.sp_InstallmentMaster_Insert '" + txt_enqno.Text + "'," + month + ",'" + InstallDate + "','0'," + month + ",'True'");
            month++;
            }
        }
    }

Then, find a way to do that that doesn't involve concatenating strings: Never concatenate strings to build a SQL command. It leaves you wide open to accidental or deliberate SQL Injection attack which can destroy your entire database. Use Parametrized queries instead.

rahulDer · Answer 2 · 2014-03-13T02:27:00

thank you for youa valuable answer ..
i appreciate it ,but i have solved it by easy way ..
here t is ..

C#

for (int i = 0; i <= int.Parse(txt_bank1.Text); i++)
            {
                DateTime dtchk = Convert.ToDateTime(txt_dated.Text);

                DateTime InstallDate = dtchk.AddMonths(1);

                DataTable dt = conn.filldatatable("ERP.sp_InstallmentMaster_Insert '" + txt_enqno.Text + "'," + Convert.ToDecimal(txt_monthInstall.Text) + ",'" + InstallDate + "','0'," + Convert.ToDecimal(txt_monthInstall.Text) + ",'True'");
                txt_dated.Text = InstallDate.ToString();
            }

How Can I Auto Increment Month In Date Format In Asp.Net ?

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