Mat Expansion Panel not getting displayed

I am using expansion panel in Angular 17 but it is not getting displayed. Below is the HTML

I want that on right Hand Side some arrow (say v ) should be displayed when clicked it should expand. .

If it again clicked it should collapse.

                                
                                

                                
                                    
                                    
                                        Father
                                    
                                    
                                    
                                        
                                            
                                                Custody Allowed
                                                Correspondence Address
                                            
                                            

                                            
                                                
                                                    Full Name
                                                    {{fatherData.fullName}}
                                                
                                                
                                                    Date of birth
                                                    {{fatherData.dateOfBirth }}
                                                
                                                
                                                    Occupation
                                                    Software Engineer
                                                
                                                
                                                    Department
                                                    {{fatherData.department}}
                                                
                                                
                                                    Specialization
                                                    {{fatherData.specialization}}
                                                

                                                
                                                    
    
   
                                                        
                                                            
                                                                Address
                                                            
                                                            
                                                                Official
                                                                Industrial Area, Phase 2, Mohali, India, Punjab, Chandigarh - 160275
                                                                Latitude: 365214 Longitude: 425632
                                                            
                                                            
                                                        
    
                                                        
                                                            Description
                                                            This address is official address and not permanent address, so don't follow this address.

Thanks

The issue you're facing with the Mat Expansion Panel not getting displayed in Angular 17 can be resolved by ensuring that you have imported the necessary modules and components correctly.

First, make sure you have imported the MatExpansionModule in your Angular module file

import { MatExpansionModule } from '@angular/material/expansion';

@NgModule({
  imports: [
    // other imports
    MatExpansionModule
  ],
  // other configurations
})
export class AppModule { }

Next, ensure that you have included the necessary styles and scripts in your index.html file:

Additionally, check if you have imported the necessary CSS styles for the expansion panel in your component's CSS file:

@import '~@angular/material/prebuilt-themes/indigo-pink.css';

Finally, ensure that you have the correct HTML structure for the expansion panel. In your case, it seems like you have the correct structure with the and elements.

If the issue persists, please provide more details or any error messages you are encountering so that I can assist you further.

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Jayraj Chhaya2y ago
The issue you're facing with the Mat Expansion Panel not getting displayed in Angular 17 can be resolved by ensuring that you have imported the necessary modules and components correctly.

First, make sure you have imported the MatExpansionModule in your Angular module file
```
import { MatExpansionModule } from '@angular/material/expansion';

@NgModule({
  imports: [
    // other imports
    MatExpansionModule
  ],
  // other configurations
})
export class AppModule { }
```
Next, ensure that you have included the necessary styles and scripts in your index.html file:
```
  
  


  
  

  
  
```
Additionally, check if you have imported the necessary CSS styles for the expansion panel in your component's CSS file:
```
@import '~@angular/material/prebuilt-themes/indigo-pink.css';
```
Finally, ensure that you have the correct HTML structure for the expansion panel. In your case, it seems like you have the correct structure with the and elements.

If the issue persists, please provide more details or any error messages you are encountering so that I can assist you further.
+1