code for clearing all textbox in a form c#

Question

1.07/5 (7 votes)

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C#

Posted 31-May-11 23:14pm

Ragi Gopi

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5 solutions

Solution 3

Try this:

XML

foreach (TextBox t in this.Controls.OfType<TextBox>())
            {
                t.Text = string.Empty;
            }

Posted 31-May-11 23:24pm

RakeshMeena

Comments

Ragi Gopi 1-Jun-11 5:50am

its not working

RakeshMeena 1-Jun-11 6:16am

what error/issue you are getting?

ambarishtv 1-Jun-11 6:24am

i think textbox's placed in groupbox or panel like containers then
use this.Controls replaced as groupbox.Controls

RakeshMeena 1-Jun-11 6:36am

Yes you are correct. My mistake. But to get a control at nth level would require good amt of logic. So I think at the time of writing code, the developer should be well aware of the containers he would be looking in and code accordingly.

For the down-voter: Before downvoting you should post your problem/issue in detail. It's SICK!!!

ambarishtv 1-Jun-11 6:05am

good 5+

RakeshMeena 1-Jun-11 6:16am

thanks!

Sergey Alexandrovich Kryukov 1-Jun-11 15:01pm

Very nice use of generic, but not quite correct solution.
Text Boxes can be children of nested controls (panels, etc.), and more usually are. Sorry, I vote only 4.

Correct solution should be recursive.
Please see my solution.
--SA

Solution 5

Here you go

Using C#[^]

Using Javascript[^]

Posted 1-Jun-11 17:35pm

thatraja

Solution 6

C#

foreach (Control field in container.Controls)
            {
                if (field is TextBox)
                    ((TextBox)field).Clear();
                else if (field is ComboBox)
                    ((ComboBox)field).SelectedIndex=0;
                else
                    dgView.DataSource = null;
                    ClearAllText(field);
            }

Posted 14-Jul-15 21:20pm

Delphy46

v2

Comments

CHill60 15-Jul-15 7:44am

Please refrain from posting solutions to old questions that are already resolved. You will only attract downvotes and your account may be suspended as a result

Sergey Alexandrovich Kryukov 15-Jul-15 8:18am

There is nothing wrong with answering old questions, but only if the new answer has some value. In this case, this is pure abuse, not a solution. "ClearAllText" is not defined...
What's the purpose, to show that combo box can also be "cleared". Well, it's clear. What else? :-)
—SA

CHill60 15-Jul-15 8:40am

I usually leave them alone if they add value, a better explanation, a new way of doing things in later versions etc. But yes, this post is just abuse - member has been making a habit of it and been warned by a few of us. I'm giving them one last chance before reporting the account

Sergey Alexandrovich Kryukov 15-Jul-15 8:50am

If this is a repeated activity, even after warnings, I would say, the last chance is already lost. This person got two abuse reports on the member account so far.

Also, those "answers" are just copies of the code nearly irrelevant to the question.

But next step would be reporting it to the forum. Only it should be properly formulated. This is not answering to old question, which would be perfectly fine, but this is more like an attempt to parasite on the answers of others. Wes Aday called this member a "rep hunter".

—SA

[no name] 16-Jul-15 1:41am

Are you serious ? one mail id is enough to create new account :)
now you go ;)
But anyway i'm sorry guys.. i will avoid this behaviour..

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Sergey Alexandrovich Kryukov · Accepted Answer · 2011-06-01T08:53:00

Solution 4

The other solutions do not take into account that the controls can be nested (I personally always put a number of Panels (splitters, etc.) and add other controls as Panel's children).

So, the solution needs to be recursive:

C#

void ClearTextBoxes(Control parent) {
    foreach (Control child in parent.Controls) {
        TextBox textBox = child as TextBox;
            if (textBox == null)
                ClearTextBoxes(child);
            else
                textBox.Text = string.Empty;
    } //loop
} //ClearTextBoxes

//...

ClearTextBoxes(myForm);

—SA

Posted 1-Jun-11 8:53am

Sergey Alexandrovich Kryukov

Comments

Tarun.K.S 1-Jun-11 15:51pm

Aah right, recursion. Perfect solution. 5+
@RagiGopi: This is the answer.

Sergey Alexandrovich Kryukov 1-Jun-11 16:09pm

Thank you, Tarun.
--SA

ambarishtv 2-Jun-11 1:25am

+5 :thumbsup:

Sergey Alexandrovich Kryukov 2-Jun-11 1:38am

Thank you.
--SA

[no name] 15-Jul-15 3:19am

what is the use of ClearTextBoxes(myForm) ?

Sergey Alexandrovich Kryukov 15-Jul-15 6:59am

As you could see from the implementation, it makes Text property of each text box empty, recursively.

There is no such thing as "clear" the text (what would it be, by definition), but this is just an example. And it's probably what the inquirer wanted. Ask this person what's the use, not me.

Thank you.
—SA

[no name] 15-Jul-15 7:41am

SA tx and i got it ...
that is needs to reset cleartext operation :P

CHill60 15-Jul-15 8:07am

No you haven't got it - it is an example of how to initiate the cleartext operation at the form level. It could be called from a button or some other method.
And if you only "got this" 22 minutes ago, why were you posting it as a solution 4 hours ago?

OriginalGriff · Accepted Answer · 2011-05-31T23:18:00

Solution 1

Try:

foreach (Control c in Controls)
   {
   TextBox tb = c as TextBox;
   if (tb != null)
      {
      tb.Text = string.Empty;
      }
   }

Posted 31-May-11 23:18pm

OriginalGriff

Comments

Ragi Gopi 1-Jun-11 5:50am

not working

StM0n 1-Jun-11 5:52am

Could you please tell us, what does not work?

Аslam Iqbal 1-Jun-11 6:02am

my 5

ambarishtv 1-Jun-11 6:11am

+5

Sergey Alexandrovich Kryukov 1-Jun-11 14:54pm

Not exactly. Text Boxes may be children of some nested controls, such as Panels, so the correct solution must be recursive.

Please see my solution. (Just 4 for yours this time :-)
--SA