Clear All textbox Text On One Click

Introduction

When we are making a registration form or a form having many textboxes, i.e.,[10,20-50 textboxes] in a single page and we have to clear all the textboxes at once after submission, what we do is write dozens of lines for every textbox out there in form or page.

If you have one or two textboxes, then it is ok.

Just use textbox-id.Text=""; and it will clear the textbox text.

But when we have many textboxes in a single page of form, then we have to use something better to do that and here this code comes in.

So just read, understand and apply it.

Background

You need a little bit of information about how to create a control in ASP.NET from code-behind.

Using the Code

Here, I have taken a div in which I have placed my textbox and other controls in it.

 <div id="feedback" runat="server">

        <h3>Feedback</h3>

                 Name:

         <asp:TextBox ID="name" runat="server" ></asp:TextBox>

                  Email: 

<asp:TextBox ID="email" runat="server" ></asp:TextBox>

Tell us:

<asp:TextBox ID="text" runat="server" 
CssClass="feedbacktextbox" TextMode="MultiLine" >
</asp:TextBox>
<asp:Button ID="b1" CssClass="feedbackbtn" 
runat="server" Text="Submit" OnClick="b1_Click" />      
</div>  

So, now on code-behind, when button is clicked, it runs the code in which a foreach-loop loops through our division and finds the TextBox control, wherein code below b is Control which will loop through our division.

c is a textbox control we declared.

And what will happen after that is below:

protected void b1_Click(object sender, EventArgs e)
{ 
 foreach ( Control b in feedback.Controls ) //feedback is division

            {
                TextBox c;
                if (b is TextBox)
                {
                    c = b as TextBox; 
                    if (c != null) 
                    {
                        c.Text = String.Empty;

                    // or we can use

                     c.Text="";
                    }
                }
            } 
} 

Points of Interest

Using this will save us from writing dozens of lines to clear TextBox text.

So, guys, use it or leave it. It's your choice. :)