Same OnPost handler with different parameters-CodePudding

I have a for with the following submit actions:

<form  method="post">
    <input type="submit" value="Test1" asp-page-handler="Button1"/>
    <input type="submit" value="Test2"  asp-page-handler="Button2"/>
</form>

with .cs file:

public IActionResult OnPostButton1(IFormCollection data)
    {
        if (ModelState.IsValid == false)
        {
            return Page();
        }

        await _db.InsertOrUpdateComments(param1);

       return Redirect("/Projects/Index");
    }

   
    public IActionResult OnPostButton2(IFormCollection data)
    {
        if (ModelState.IsValid == false)
        {
            return Page();
        }

        await _db.InsertOrUpdateComments(param2);

       return Redirect("/Projects/Index");
    }

This works well for what I want, however I wanted to know if I can combine it, as you see, there is pretty much no difference on the post methods other than the parameter passed, I wanted to know if I can combine these submit into a single one and have a condition to know which parameter to pass.

such as if user clicks on Button1 will call the same OnPost as Button2 but passing a different parameter that will be used for "param1" or "param2".

CodePudding user response：

To take advantage of Razor Pages model binding (rather than delving into the FormCollection manually), you can add a bound property to your PageModel class:

[BindProperty]
public string Action { get; set; }

Then add a name attribute to the submit buttons, which now both have the same handler name, so that the value of the button is bound to the PageModel property:

<form  method="post">
    <input type="submit" name="Action" value="Test1" asp-page-handler="Button"/>
    <input type="submit" name="Action" value="Test2"  asp-page-handler="Button"/>
</form>

Then in your single handler, you can test the value of the Action property:

public IActionResult OnPostButton()
{
    if (ModelState.IsValid == false)
    {
        return Page();
    }
    var p  = Action == "Test1" ? p1 : p2;
    await _db.InsertOrUpdateComments(p);

    return Redirect("/Projects/Index");
}