How to create a modal form in blazor sever?

Question

Hi Team

I am using VS 2022 and have .net sdk 8 want to create modal form will be triggered when button is clicked. Are there any articles i can relate how to do this step by step? So can follow it, maybe on my current app i might miss some steps or else js files that are need for modal to show mine its not pop up when i clicked the button.

 

// Blazor requirements

The application
should include the following:
? a listing of operations with an option to remove an operation
? a modal form to add a new an operation to the list of operations
? a modal form to add a new device to an operation
? a pleasant user interface
? razor components
The application does not need to cater for any form of persistence.

class Operation {

	public int OperationID {get;set;}
	public string Name {get;set;}
	public int OrderInWhichToPerform {get;set;}
	public byte[] ImageData {get;set;}
	public Device Device {get;set;}

}

public Device {
	public int DeviceID {get;set;}
	public string Name {get;set;}
	public DeviceType {get;set;}
}


enum DeviceType {

	BarcodeScanner,
	Printer,
	Camera,
	SocketTray


}

C#

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Answer 1

To create a modal form in your Blazor application, you can follow these steps:

1. Install Bootstrap: Ensure you have Bootstrap included in your project for styling and modal functionality. You can add it via NuGet or link it in your index.html.

2. Create a Modal Component: Create a new Razor component, e.g., ModalForm.razor, and define the modal structure. Here’s a simple example:

3. @code {
       private bool showModal = false;
   
       public void Show() => showModal = true;
       public void Hide() => showModal = false;
   }
   
   <div class="modal @(showModal ? "show" : "")" style="@(showModal ? "display:block;" : "display:none;")">
       <div class="modal-dialog">
           <div class="modal-content">
               <div class="modal-header">
                   <h5 class="modal-title">Add Operation</h5>
                   <button type="button" class="close" @onclick="Hide">&times;</button>
               </div>
               <div class="modal-body">
                   <!-- Form fields go here -->
               </div>
               <div class="modal-footer">
                   <button type="button" class="btn btn-secondary" @onclick="Hide">Close</button>
                   <button type="button" class="btn btn-primary">Save changes</button>
               </div>
           </div>
       </div>
   </div>
   

4. Trigger the Modal: In your main component, add a button to trigger the modal:

5. <button class="btn btn-primary" @onclick="ShowModal">Add Operation</button>
   
   @code {
       private ModalForm modal;
   
       private void ShowModal() => modal.Show();
   }
   

6. Add Functionality: Implement the logic to handle form submissions and data binding as needed.