Date and time picker- close calender

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Hi guys,

I'm new to project code and C#. I would appeciate advice on the following:

Current problem :(: I have a textbox in which a ref no. is input, the validation of this number occurs in a textbox_leave event. Problem is when user then goes to date and time picker, and if textbox isnt valid a messagebox comes up, and date and time picker just remains dropped down.

Ideal solution:): if textbox invalid, the date and time picker calender doesnt drop down and focus to be on back on textbox.

Thank you

Posted 7-Feb-12 22:32pm

nikki88

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Herman<T>.Instance 8-Feb-12 4:33am

please show code from textbox_leave code

3 solutions

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nikki88 · Answer 1 · 2012-02-07T22:37:00

C#

private void textBox2_Leave(object sender, EventArgs e)
       {
           var carindex2 = (textBox2.Text.Trim()).ToUpper();

               string connectionString = "Provider= OraOLEDB.Oracle; Data Source=TSTEEL;User ID=NEW_DBA;Password=tsteel";
           string sql = "SELECT count(car_index) FROM CAR where car_index = '" + carindex2 + "'";
           OleDbConnection connection = new OleDbConnection(connectionString);
           OleDbCommand command = new OleDbCommand(sql, connection);
           connection.Open();
           int count = Convert.ToInt32(command.ExecuteScalar());
           connection.Close();

           if (count == 0)
           { ////error message if car index doesnt exist

               MessageBox.Show("Car Index does not exist, Please try again!", "Car not found", MessageBoxButtons.OK, MessageBoxIcon.Error);
               textBox2.Clear();



           }

       }

jai000 · Answer 2 · 2012-02-07T22:38:00

Solution 2

If textbox is invalid then set focus to textbox again like following code

C#

textbox1.Focus();

Hope this will help you...

Posted 7-Feb-12 22:38pm

jai000

Comments

nikki88 8-Feb-12 4:43am

Thanks i've tried it, but as weird as it is, it makes the message box come up twice !

jai000 · Answer 3 · 2012-02-07T23:19:00

try this code

C#

private void textBox2_Leave(object sender, EventArgs e)
        {
            var carindex2 = (textBox2.Text.Trim()).ToUpper();
 
                string connectionString = "Provider= OraOLEDB.Oracle; Data Source=TSTEEL;User ID=NEW_DBA;Password=tsteel";
            string sql = "SELECT count(car_index) FROM CAR where car_index = '" + carindex2 + "'";
            OleDbConnection connection = new OleDbConnection(connectionString);
            OleDbCommand command = new OleDbCommand(sql, connection);
            connection.Open();
            int count = Convert.ToInt32(command.ExecuteScalar());
            connection.Close();
 
            if (count == 0)
            { ////error message if car index doesnt exist
              
                MessageBox.Show("Car Index does not exist, Please try again!", "Car not found", MessageBoxButtons.OK, MessageBoxIcon.Error);
                textBox2.Focus();
                textBox2.Clear();
            }
 
        }

Date and time picker- close calender

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