How do pass textbox string from form1 to form2

Question

4.00/5 (1 vote)

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Hi,
I am trying to pass textbox string from form1 to form2.

I am using the following code to do that

C#

public void btnGatewayMsgsClick(object sender, EventArgs e)
        {

            try
            {
                //new GatewayMsgIDs(txtDataLogFile.Text).Show();
                new GatewayMsgIDs(txtDataLogFile.Text).Show();
            }
            catch (Exception ex)
            {
                MessageBox.Show(Constants.RT_ERROR + ex.Message, Constants.ERROR, MessageBoxButtons.OK, MessageBoxIcon.Error);

            }
        }

Constructor of form2

C#

public class GatewayMsgIDs
    {

 public string dataLogFile = string.Empty;

        public GatewayMsgIDs(string logfilename)
        {
            dataLogFile = logfilename;
        }
}

But when I am trying like this, it is showing empty form2(GatewayMsgIDs)
when I am tring something like below on button click event
new GatewayMsgIDs().Show();
It is showing empty form

Can anyone suggest something about this??+

Thanks
John

Posted 22-Jan-14 2:30am

Member 10408451

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2 solutions

Solution 2

I would add a property for that.

C#

public void btnGatewayMsgsClick(object sender, EventArgs e)
        {

            try
            {
                GatewayMsgIDs gmID = new GatewayMsgIDs();
                gmID.DataLogFile = txtDataLogFile.Text;
                gmID.Show();
            }
            catch (Exception ex)
            {
                MessageBox.Show(Constants.RT_ERROR + ex.Message, Constants.ERROR, MessageBoxButtons.OK, MessageBoxIcon.Error);

            }
        }

the other form looks like this:

C#

public class GatewayMsgIDs
    {

 private string dataLogFile = string.Empty; //this should NOT be public!

        public GatewayMsgIDs()
        {
        }

        public string DataLogFile{
          set{
            //here you could first check if the value a valid value (depending on what it should contain.)
            dataLogFile = value;
          }
          get{} // if necessary
        }
}

hope this helps.

Posted 22-Jan-14 3:09am

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Karthik_Mahalingam · Accepted Answer · 2014-01-22T02:39:00

Solution 1

Change like this

C#

public GatewayMsgIDs(string logfilename)
       {
           InitializeComponent();
           dataLogFile = logfilename;
       }

Posted 22-Jan-14 2:39am

Karthik_Mahalingam