when check SelectedBranchId bind outside for post it is become null

I work on razor asp.net core .i face issue selectedbranchid is inside post form form is get selected value without any issue

but if i use another post and get selectedbranchid it become null why

so How to solve issue please

on page model

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


        

            
                
                    
                        Print Server

now i will check another post method not related to form or another form different with post

public ActionResult OnPostCreateUsers(string selectbranchid) { string selectedbranchid=SelectedBranchId; //here when check it become null }

why bind property outside form become null and how to solve this issue

In your code, it seems that you're trying to access the SelectedBranchId property outside the

tag, which results in a null value. The reason for this behavior is that the SelectedBranchId property is bound to the form's model during the form submission. When you access it outside the form, it loses its binding context and becomes null.

To solve this issue, you have a couple of options:

Option 1: Move the tag inside the tag:

By placing the hidden input field () within the

tag, it will retain the binding context and correctly pass the value of SelectedBranchId during form submission.

Option 2: Use a different approach to retrieve the SelectedBranchId value: If you need to access the SelectedBranchId value outside the form or in a different post method, you can use the HttpContext.Request.Form collection to retrieve the value directly. Modify your code as follows:

public ActionResult OnPostCreateUsers(string selectbranchid)
{
    string selectedBranchId = HttpContext.Request.Form["SelectedBranchId"];
    // Use the selectedBranchId value as needed
}

In this approach, you access the SelectedBranchId value directly from the HttpContext.Request.Form collection using its name. This allows you to retrieve the value even outside the form's model binding context.

1 Reply

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Mohamed Azarudeen Z3y ago
Accepted answer
In your code, it seems that you're trying to access the SelectedBranchId property outside the
tag, which results in a null value. The reason for this behavior is that the SelectedBranchId property is bound to the form's model during the form submission. When you access it outside the form, it loses its binding context and becomes null.

To solve this issue, you have a couple of options:

Option 1: Move the tag inside the tag:
By placing the hidden input field () within the
tag, it will retain the binding context and correctly pass the value of SelectedBranchId during form submission.

Option 2: Use a different approach to retrieve the SelectedBranchId value: If you need to access the SelectedBranchId value outside the form or in a different post method, you can use the HttpContext.Request.Form collection to retrieve the value directly. Modify your code as follows:

public ActionResult OnPostCreateUsers(string selectbranchid) { string selectedBranchId = HttpContext.Request.Form["SelectedBranchId"]; // Use the selectedBranchId value as needed }

In this approach, you access the SelectedBranchId value directly from the HttpContext.Request.Form collection using its name. This allows you to retrieve the value even outside the form's model binding context.
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