Solved

how can i search textbox control on the current form in C#.net windows application ??

Posted on 2011-03-10
4
512 Views
Last Modified: 2012-05-11
i want to know that how can i search textbox control on the current form in C#.net windows application ??

without linq how can i do it ??
0
Comment
Question by:Parth48
4 Comments
 

Author Comment

by:Parth48
ID: 35093585
please refer the below code ...

private TextBox GetTextBox()
        {
            TextBox txtPasskey = new TextBox();
            txtPasskey.Name = "txtPasskey";
            txtPasskey.MaxLength = 8;
            txtPasskey.PasswordChar = '*';
            txtPasskey.TextAlign = HorizontalAlignment.Left;
            txtPasskey.Location = new Point(200, 200);
            txtPasskey.TextChanged += new EventHandler(this.txtPasskey_TextChanged);
            txtPasskey.Validating += new CancelEventHandler(this.txtPasskey_Validating);
            return txtPasskey;
        }

Open in new window


now how can i find above textbox(txtPasskey) without linq ??
0
 
LVL 53

Expert Comment

by:Dhaest
ID: 35093619
Why wouldn't you use LINQ ? If you really not want to do that, you'll need to implement a loop over all your controls

Example without linq

foreach (Control con in mainForm.Controls)
    {
        if ( control is Textbox  && control.Name = ""YourTextBox")
                 // now you have your textbox
    }


See also: http://www.dotnetperls.com/query-windows-forms
0
 
LVL 10

Expert Comment

by:John Claes
ID: 35093786
You can also use the Old Way ;-)

TextBox MyTextBox = control.FindControl("YourTextBox") as TextBox;
0
 
LVL 85

Accepted Solution

by:
Mike Tomlinson earned 500 total points
ID: 35095183
For WinForms, it would be similar:
string CtlName = "txtPasskey";
            Control[] matches = this.Controls.Find(CtlName, true);
            if (matches.Length > 0)
            {
                // ... do something with matches[0] ...
                if (matches[0] is TextBox)
                {
                    TextBox tb = (TextBox)matches[0];
                    tb.Text = "You found me!";
                }
            }

Open in new window

0

Featured Post

3 Use Cases for Connected Systems

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, testing some more, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Problem Hi all,    While many today have fast Internet connection, there are many still who do not, or are connecting through devices with a slower connect, so light web pages and fast load times are still popular.    If your ASP.NET page …
Exception Handling is in the core of any application that is able to dignify its name. In this article, I'll guide you through the process of writing a DRY (Don't Repeat Yourself) Exception Handling mechanism, using Aspect Oriented Programming.
This Micro Tutorial will teach you how to censor certain areas of your screen. The example in this video will show a little boy's face being blurred. This will be demonstrated using Adobe Premiere Pro CS6.
The Email Laundry PDF encryption service allows companies to send confidential encrypted  emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…

775 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question