Button

@inherits ControlComponent
<p>Click on the submit button.</p>

<asp.Button Text="Submit" OnClick="this.SubmitBtn_Click" />

<br />

<asp.Label @ref="this.message" />

@code {
                                            private Label message;

                                            protected void SubmitBtn_Click(object sender, EventArgs e)
    {
        message.Text = "Hello World!!";
    }
}

@inherits ControlComponent
<p>Click on one of the command buttons.</p>

<asp.Button Text="Sort Ascending"
                                            CommandName="Sort"
                                            CommandArgument="Ascending"
                                            OnCommand="this.CommandBtn_Click" />

<asp.Button Text="Sort Descending"
                                            CommandName="Sort"
                                            CommandArgument="Descending"
                                            OnCommand="this.CommandBtn_Click" />

<br />
<br />

<asp.Button Text="Submit"
                                            CommandName="Submit"
                                            OnCommand="this.CommandBtn_Click" />

<asp.Button Text="Unknown Command Name"
                                            CommandName="UnknownName"
                                            CommandArgument="UnknownArgument"
                                            OnCommand="this.CommandBtn_Click" />

<asp.Button Text="Submit Unknown Command Argument"
                                            CommandName="Submit"
                                            CommandArgument="UnknownArgument"
                                            OnCommand="this.CommandBtn_Click" />

<br />
<br />

<asp.Label @ref="this.message" />

@code {
                                            private Label message;

                                            protected void CommandBtn_Click(object sender, CommandEventArgs e)
    {
                                            switch (e.CommandName)
        {
                                            case "Sort":
                                            // Call the method to sort the list.
                Sort_List((string)e.CommandArgument);
                                            break;
                                            case "Submit":
                                            // Display a message for the Submit button being clicked.
                message.Text = "You clicked the Submit button";
                                            // Test whether the command argument is an empty string ("").
                                            if ((string)e.CommandArgument == "")
                {
                                            // End the message.
                    message.Text += ".";
                }
                                            else
                {
                                            // Display an error message for the command argument.
                    message.Text += ", however the command argument is not recogized.";
                }
                                            break;
                                            default:
                                            // The command name is not recognized. Display an error message.
                message.Text = "Command name not recogized.";
                                            break;
        }
    }

                                            protected void Sort_List(string commandArgument)
    {
                                            switch (commandArgument)
        {
                                            case "Ascending":
                                            // Insert code to sort the list in ascending order here.
                message.Text = "You clicked the Sort Ascending button.";
                                            break;
                                            case "Descending":
                                            // Insert code to sort the list in descending order here.
                message.Text = "You clicked the Sort Descending button.";
                                            break;
                                            default:
                                            // The command argument is not recognized. Display an error message.
                message.Text = "Command argument not recogized.";
                                            break;
        }
    }
}