show message box for those textboxes which are empty

hadoop hadoop

I've some textboxes in my win form. On submit button I want to check if all the textboxes are filled or not. I want to show message for only those textboxes which are empty.

For eg.

First Name >> txtbox_FirstName

Last Name >> txtbox_LastName

Middle Name >> txtbox_MiddleName

Address >> txtbox_Address

Class >> txtbox_Class

private void btnSubmit_Click(object sender, EventArgs e)

{

if (txtbox_FirstName.Text == "" || txtbox_LastName.Text == "" || txtbox_MiddleName.Text == "" || txtbox_Address.Text == "" || txtbox_Class.Text == "")

{

MessageBox.Show( MessageBoxButtons.OK, MessageBoxIcon.Information);

// focus on the empty text boxes

}

In the message box I want to say to the user, please fill the text box which is empty.

Suppose, if the user has not fill txtbox_LastName, the message should be "please enter Last Name"

if the user has not fill txtbox_FirstName and txtbox_Class, the message should be "please enter First Name and Class".

And also focus on the first empty text box.

How can I do that?

7 Replies

Know the answer? Post it — somebody with the same question will find it here.

Govinda Rajulu Yemineni11y ago
Hi,

private void btnSubmit_Click(object sender, EventArgs e)
{
string result = "Please Enter ";
if (txtbox_FirstName.Text == string.Empty)
{
   result += "First Name,";
}
if (txtbox_LastName.Text == string.Empty)
{
   result += "Last Name,";
}
if (txtbox_MiddleName.Text == string.Empty)
{
   result += "Middle Name,";
}
if (txtbox_Address.Text == string.Empty)
{
   result += "Address,";
}
if (txtbox_Class.Text == string.Empty)
{
   result += "Class";
}
else
{
if (result.Contains(','))
{
   result = result.Remove(result.LastIndexOf(','));
}
}
if(result!="Please Enter ")
{
   MessageBox.Show(result);
}
}

0
Ranjit Powar11y ago
if (txtbox_FirstName.Text == "")
{
MessageBox.Show("Please enter First Name!");
txtbox_FirstName.Focus();
}
else if (txtbox_LastName.Text == "")
{
MessageBox.Show("Please enter Last Name!");
(txtbox_LastName.Focus();
}
else if (txtbox_MiddleName.Text == "")
{
MessageBox.Show("Please enter Middle Name!");
txtbox_MiddleName.Focus()
}
else if (txtbox_Address.Text == "")
{
MessageBox.Show("Please enter Address!");
txtbox_Address.Focus();
}
else if (txtbox_Class.Text == "")
{
MessageBox.Show("Please enter Class!");
txtbox_Class.Focus();
}
0
Vilas Shende11y ago
Dude @Hadoop Hadoop,
I have suggested code for Windows Desktop Application itself.
0
Manoj Bhoir11y ago
Hi,

Instead of your code :

if (txtbox_FirstName.Text == "" || txtbox_LastName.Text == "" || txtbox_MiddleName.Text == "" || txtbox_Address.Text == "" || txtbox_Class.Text == "")
{
MessageBox.Show( MessageBoxButtons.OK, MessageBoxIcon.Information);
// focus on the empty text boxes
}

Try this :

if (txtbox_FirstName.Text == "")
{
MessageBox.Show("Please enter First Name!");
}
else if (txtbox_LastName.Text == "")
{
MessageBox.Show("Please enter Last Name!");
}

else if (txtbox_MiddleName.Text == "")
{
MessageBox.Show("Please enter Middle Name!");
}
else if (txtbox_Address.Text == "")
{
MessageBox.Show("Please enter Address!");
}
else if (txtbox_Class.Text == "")
{
MessageBox.Show("Please enter Class!");
}
else
{
// Your code if all fields validated successfully.
}

0
Rakesh11y ago
http://www.codeproject.com/Articles/13922/Validate-user-input-in-Windows-Forms
0
hadoop hadoop11y ago
Thanks for the reply. But I need solution for C# desktop application.
0
Vilas Shende11y ago
Hi,
Your code is okay, just you have to increase number of conditions, for each & every text box condition should be separate. For examples:-

First Name >> txtbox_FirstName
Last Name >> txtbox_LastName
Middle Name >> txtbox_MiddleName
Address >> txtbox_Address
Class >> txtbox_Class

private void btnSubmit_Click(object sender, EventArgs e)
{
if (txtbox_FirstName.Text == "")
{
MessageBox.Show("Please enter First Name");
}
if (txtbox_LastName.Text == "")
{
MessageBox.Show("Please enter Last Name");
}

if (txtbox_MiddleName.Text == "")
{
MessageBox.Show("Please enter Middle Name");
}
if (txtbox_Address.Text == "")
{
MessageBox.Show("Please enter Address");
}
if (txtbox_Class.Text == "")
{
MessageBox.Show("Please enter Class");
}
}
0