how to make all buttons in a form fire only one buttonclick event in vb.net

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Hello all.

I have about 700 buttons in my aspx. All buttons will do the same event so I want to declare only one buttonclick event so that all buttons will fire to that only event. How can I do that?

Tq!

Posted 25-Sep-12 21:14pm

snamyna

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Sandeep Mewara · Accepted Answer · 2012-09-25T21:48:00

Define a single button Click event handler and attach that handler to all the buttons.

C#

btn1.Click += new EventHandler(this.GenericBtn_Click);
btn2.Click += new EventHandler(this.GenericBtn_Click);
btn3.Click += new EventHandler(this.GenericBtn_Click);
btn4.Click += new EventHandler(this.GenericBtn_Click);
.
.
.
btnn.Click += new EventHandler(this.GenericBtn_Click);

void GenericBtn_Click(Object sender, EventArgs e)
{
  // all button clicks land here!
}

Refer: MSDN: Button.Click Event[^]

Sandeep Mewara · Accepted Answer · 2012-09-25T21:48:00

Define a single button Click event handler and attach that handler to all the buttons.

C#

btn1.Click += new EventHandler(this.GenericBtn_Click);
btn2.Click += new EventHandler(this.GenericBtn_Click);
btn3.Click += new EventHandler(this.GenericBtn_Click);
btn4.Click += new EventHandler(this.GenericBtn_Click);
.
.
.
btnn.Click += new EventHandler(this.GenericBtn_Click);

void GenericBtn_Click(Object sender, EventArgs e)
{
  // all button clicks land here!
}

Refer: MSDN: Button.Click Event[^]

Pro Idiot · Accepted Answer · 2012-09-25T21:41:00

Solution 1

You can declare as many buttons you want and assign 1 onclick function :)

Tested for 4 buttons

XML

<asp:Button ID="btn1" runat="server" Text="btn1" onclick="btn1_Click" />
    <asp:Button ID="Button1" runat="server" Text="btn1" onclick="btn1_Click" />
     <asp:Button ID="Button2" runat="server" Text="btn1" onclick="btn1_Click" />
      <asp:Button ID="Button3" runat="server" Text="btn1" onclick="btn1_Click" />

Posted 25-Sep-12 21:41pm

Pro Idiot

Updated 25-Sep-12 21:42pm

v2

Comments

snamyna 26-Sep-12 4:07am

Then, how can I determine which button actually cause the event to be fired? or in other words, how can I declare the button ID?

Pro Idiot 26-Sep-12 6:23am

In the btn1_Click function

protected void btn1_Click(object sender, EventArgs e)
{
Button b1 = (Button)sender;
string test = b1.ID;
}

here you get your button id , do appropriate task

snamyna 12-Oct-12 2:44am

Thanks! :)

how to make all buttons in a form fire only one buttonclick event in vb.net

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