how to retrieve data from data grid view by clicking on button

Question

1.00/5 (1 vote)

See more:

.NET3.5

, +

I am working on GUI form .I want to use a button to display a table which is in database through data grid view.The button name is display and i want when i click on this display button the whole table will appear through data grid view.
I applied the below coding for that but error occured on
if (e.Keychar == (char)13 and the error is:-

'System.EventArgs' does not contain a definition for 'Keychar' and no extension method 'Keychar' accepting a first argument of type 'System.EventArgs' could be found (are you missing a using directive or an assembly reference?).

private void btndisplay_Click(object sender, EventArgs e)
{
if (e.Keychar == (char)13) {
string strSQLconnection = "Data Source=AKMINDER-PC\SQLEXPRESS;Initial Catalog=elin appliances(Comaker of PHILIPS);Integrated Security=True";
SqlConnection sqlConnection = new SqlConnection(strSQLconnection);
SqlCommand sqlCommand = new SqlCommand("SELECT * FROM vendor_info", sqlConnection);
sqlConnection.Open();

SqlDataReader reader = sqlCommand.ExecuteReader();

GridView1.DataSource = reader;
GridView1.DataBind();
GridView1.Visible = true;
GridView1.Focus();
}

Posted 25-Feb-12 3:20am

akminder

Add a Solution

Comments

Sergey Alexandrovich Kryukov 25-Feb-12 23:54pm

Why do you need this 13? Click is a click, its does not have any particular key.
--SA

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

mmm3743 · Answer 1 · 2012-02-25T05:40:00

Solution 1

Try using:

private void Form1_KeyDown(object sender, KeyEventArgs e)
{
    if (e.KeyCode.ToString() == "Return")
    {
        //write here what you want
    }
}

Put it in key down event,This is in case of Enter key pressed

Posted 25-Feb-12 5:40am

mmm3743

Comments

Sergey Alexandrovich Kryukov 25-Feb-12 23:53pm

Very, very bad!
The comparison should be (e.KeyCode == Keys.Return).
Besides, it does not solve a problem. Why checking for the key at all? OP works with a button (!).
--SA