html - C# Web Page. Trouble using button click to update textbox -

So I'm just making a dummy webpage for the basics. Goal: On a button click, I want to update the information shown in the text box.

The method takes in the parameters of myButton_Click button how can I get an object to a text box (or an object for that matter) because this button is not being accessed with the event? I established a public variable, myTextBox _ , which I think I can edit freely again

HTML:

  & Lt; Form, but I'm still not sure how to set  myTextBox _  to understand it. Id = "form1" runat = "server" & gt; & Lt; P style = "height: 324px" & gt; & Lt; Asp: button id = "mybutton" runat = "server" enabledTheming = "true" text = "button" onclick = "myButton_Click" /> & Lt; ASP: Text Box ID = "MyTextbox" runs = "Server" & gt; Hello & lt; / Asp: text box & gt; & Lt; / P & gt; & Lt; / Form & gt;  

Then the C # code:

  textbox myTextBox_; Protected Zero Page_Load (Object Sender, EventArgues E) {// Perhaps the initialization code myTextBox_ is set to id on myTextbox, but how? } Protected Zero myButton_Click (Object Sender, EventArgs e) {myTextbox_.text = "Bye"; }  

You are very close, all you have to do:

  protected myButton_Click (Object Sender, EventArgs e) {myTextBox.Text = "Bye"; }  

You do not need to set up anything in the Page_Load method, as you set them as runatserver That's why they are accessible from the back codes.

As already mentioned, a postback will be required to work on this, do not use this AJAX or in pure JavaScript.