Image not getting the Class ID - Xamarin Forms












0














I have several images in my XAML as follows (for this example I included two images).



    <StackLayout Orientation="Horizontal" HorizontalOptions="Fill" Padding="0,5,0,5">
<Image x:Name="Image1" ClassId="{Binding Image1}" Source="tickoff.png" HeightRequest="18">
<Image.GestureRecognizers>
<TapGestureRecognizer
Tapped="SelectedImage"
NumberOfTapsRequired="1" />
</Image.GestureRecognizers>
</Image>
<Label Text="Asian Foods" FontSize="16" HorizontalOptions="Center" Margin="5,0,0,0"
TextColor="{StaticResource greyishBrown}"/>
</StackLayout>

StackLayout Orientation="Horizontal" HorizontalOptions="Fill" Padding="0,5,0,5">
<Image x:Name="Image2" ClassId="{Binding Image2}" Source="tickoff.png" HeightRequest="18">
<Image.GestureRecognizers>
<TapGestureRecognizer
Tapped="SelectedImage"
NumberOfTapsRequired="1" />
</Image.GestureRecognizers>
</Image>
<Label Text="Japanese Foods" FontSize="16" HorizontalOptions="Center" Margin="5,0,0,0"
TextColor="{StaticResource greyishBrown}"/>
</StackLayout>


I want to check what image has been clicked by the user. Fort this I'm using ClassId. I have included ClassIds in all images. This has a single method in code behind and I'm accessing classId from there.



But I'm not getting the Id when user clicks an image. I'm new to C# and Xamarin Forms. Could someone help me.



public void SelectedImage(object sender, EventArgs eventArgs)
{
Image image = (Image)sender;
string imageString = image.ClassId;

DisplayAlert("Test", imageSender.ClassId,"OK");
//TODO

}









share|improve this question
























  • @Gerald Versluis - Could you please look at this?
    – apple_92
    Nov 12 at 3:39










  • are Image1 and Image2 string properties on your BindingContext?
    – Jason
    Nov 12 at 4:13










  • No. Could you please help me to fix this?
    – apple_92
    Nov 12 at 4:30










  • if you just want to assign a static value to ClassID, then just use a string "Image1" or "Image2". If you want to actually bind ClassID to a value on your model, then you will need to specify the name of a public property in the binding expression
    – Jason
    Nov 12 at 4:33










  • I removed that and added as ClassId="Image2" , now I'm getting cast error. Not working
    – apple_92
    Nov 12 at 5:15
















0














I have several images in my XAML as follows (for this example I included two images).



    <StackLayout Orientation="Horizontal" HorizontalOptions="Fill" Padding="0,5,0,5">
<Image x:Name="Image1" ClassId="{Binding Image1}" Source="tickoff.png" HeightRequest="18">
<Image.GestureRecognizers>
<TapGestureRecognizer
Tapped="SelectedImage"
NumberOfTapsRequired="1" />
</Image.GestureRecognizers>
</Image>
<Label Text="Asian Foods" FontSize="16" HorizontalOptions="Center" Margin="5,0,0,0"
TextColor="{StaticResource greyishBrown}"/>
</StackLayout>

StackLayout Orientation="Horizontal" HorizontalOptions="Fill" Padding="0,5,0,5">
<Image x:Name="Image2" ClassId="{Binding Image2}" Source="tickoff.png" HeightRequest="18">
<Image.GestureRecognizers>
<TapGestureRecognizer
Tapped="SelectedImage"
NumberOfTapsRequired="1" />
</Image.GestureRecognizers>
</Image>
<Label Text="Japanese Foods" FontSize="16" HorizontalOptions="Center" Margin="5,0,0,0"
TextColor="{StaticResource greyishBrown}"/>
</StackLayout>


I want to check what image has been clicked by the user. Fort this I'm using ClassId. I have included ClassIds in all images. This has a single method in code behind and I'm accessing classId from there.



But I'm not getting the Id when user clicks an image. I'm new to C# and Xamarin Forms. Could someone help me.



public void SelectedImage(object sender, EventArgs eventArgs)
{
Image image = (Image)sender;
string imageString = image.ClassId;

DisplayAlert("Test", imageSender.ClassId,"OK");
//TODO

}









share|improve this question
























  • @Gerald Versluis - Could you please look at this?
    – apple_92
    Nov 12 at 3:39










  • are Image1 and Image2 string properties on your BindingContext?
    – Jason
    Nov 12 at 4:13










  • No. Could you please help me to fix this?
    – apple_92
    Nov 12 at 4:30










  • if you just want to assign a static value to ClassID, then just use a string "Image1" or "Image2". If you want to actually bind ClassID to a value on your model, then you will need to specify the name of a public property in the binding expression
    – Jason
    Nov 12 at 4:33










  • I removed that and added as ClassId="Image2" , now I'm getting cast error. Not working
    – apple_92
    Nov 12 at 5:15














0












0








0







I have several images in my XAML as follows (for this example I included two images).



    <StackLayout Orientation="Horizontal" HorizontalOptions="Fill" Padding="0,5,0,5">
<Image x:Name="Image1" ClassId="{Binding Image1}" Source="tickoff.png" HeightRequest="18">
<Image.GestureRecognizers>
<TapGestureRecognizer
Tapped="SelectedImage"
NumberOfTapsRequired="1" />
</Image.GestureRecognizers>
</Image>
<Label Text="Asian Foods" FontSize="16" HorizontalOptions="Center" Margin="5,0,0,0"
TextColor="{StaticResource greyishBrown}"/>
</StackLayout>

StackLayout Orientation="Horizontal" HorizontalOptions="Fill" Padding="0,5,0,5">
<Image x:Name="Image2" ClassId="{Binding Image2}" Source="tickoff.png" HeightRequest="18">
<Image.GestureRecognizers>
<TapGestureRecognizer
Tapped="SelectedImage"
NumberOfTapsRequired="1" />
</Image.GestureRecognizers>
</Image>
<Label Text="Japanese Foods" FontSize="16" HorizontalOptions="Center" Margin="5,0,0,0"
TextColor="{StaticResource greyishBrown}"/>
</StackLayout>


I want to check what image has been clicked by the user. Fort this I'm using ClassId. I have included ClassIds in all images. This has a single method in code behind and I'm accessing classId from there.



But I'm not getting the Id when user clicks an image. I'm new to C# and Xamarin Forms. Could someone help me.



public void SelectedImage(object sender, EventArgs eventArgs)
{
Image image = (Image)sender;
string imageString = image.ClassId;

DisplayAlert("Test", imageSender.ClassId,"OK");
//TODO

}









share|improve this question















I have several images in my XAML as follows (for this example I included two images).



    <StackLayout Orientation="Horizontal" HorizontalOptions="Fill" Padding="0,5,0,5">
<Image x:Name="Image1" ClassId="{Binding Image1}" Source="tickoff.png" HeightRequest="18">
<Image.GestureRecognizers>
<TapGestureRecognizer
Tapped="SelectedImage"
NumberOfTapsRequired="1" />
</Image.GestureRecognizers>
</Image>
<Label Text="Asian Foods" FontSize="16" HorizontalOptions="Center" Margin="5,0,0,0"
TextColor="{StaticResource greyishBrown}"/>
</StackLayout>

StackLayout Orientation="Horizontal" HorizontalOptions="Fill" Padding="0,5,0,5">
<Image x:Name="Image2" ClassId="{Binding Image2}" Source="tickoff.png" HeightRequest="18">
<Image.GestureRecognizers>
<TapGestureRecognizer
Tapped="SelectedImage"
NumberOfTapsRequired="1" />
</Image.GestureRecognizers>
</Image>
<Label Text="Japanese Foods" FontSize="16" HorizontalOptions="Center" Margin="5,0,0,0"
TextColor="{StaticResource greyishBrown}"/>
</StackLayout>


I want to check what image has been clicked by the user. Fort this I'm using ClassId. I have included ClassIds in all images. This has a single method in code behind and I'm accessing classId from there.



But I'm not getting the Id when user clicks an image. I'm new to C# and Xamarin Forms. Could someone help me.



public void SelectedImage(object sender, EventArgs eventArgs)
{
Image image = (Image)sender;
string imageString = image.ClassId;

DisplayAlert("Test", imageSender.ClassId,"OK");
//TODO

}






c# xamarin xamarin.forms






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edited Nov 11 at 18:01

























asked Nov 11 at 17:36









apple_92

6110




6110












  • @Gerald Versluis - Could you please look at this?
    – apple_92
    Nov 12 at 3:39










  • are Image1 and Image2 string properties on your BindingContext?
    – Jason
    Nov 12 at 4:13










  • No. Could you please help me to fix this?
    – apple_92
    Nov 12 at 4:30










  • if you just want to assign a static value to ClassID, then just use a string "Image1" or "Image2". If you want to actually bind ClassID to a value on your model, then you will need to specify the name of a public property in the binding expression
    – Jason
    Nov 12 at 4:33










  • I removed that and added as ClassId="Image2" , now I'm getting cast error. Not working
    – apple_92
    Nov 12 at 5:15


















  • @Gerald Versluis - Could you please look at this?
    – apple_92
    Nov 12 at 3:39










  • are Image1 and Image2 string properties on your BindingContext?
    – Jason
    Nov 12 at 4:13










  • No. Could you please help me to fix this?
    – apple_92
    Nov 12 at 4:30










  • if you just want to assign a static value to ClassID, then just use a string "Image1" or "Image2". If you want to actually bind ClassID to a value on your model, then you will need to specify the name of a public property in the binding expression
    – Jason
    Nov 12 at 4:33










  • I removed that and added as ClassId="Image2" , now I'm getting cast error. Not working
    – apple_92
    Nov 12 at 5:15
















@Gerald Versluis - Could you please look at this?
– apple_92
Nov 12 at 3:39




@Gerald Versluis - Could you please look at this?
– apple_92
Nov 12 at 3:39












are Image1 and Image2 string properties on your BindingContext?
– Jason
Nov 12 at 4:13




are Image1 and Image2 string properties on your BindingContext?
– Jason
Nov 12 at 4:13












No. Could you please help me to fix this?
– apple_92
Nov 12 at 4:30




No. Could you please help me to fix this?
– apple_92
Nov 12 at 4:30












if you just want to assign a static value to ClassID, then just use a string "Image1" or "Image2". If you want to actually bind ClassID to a value on your model, then you will need to specify the name of a public property in the binding expression
– Jason
Nov 12 at 4:33




if you just want to assign a static value to ClassID, then just use a string "Image1" or "Image2". If you want to actually bind ClassID to a value on your model, then you will need to specify the name of a public property in the binding expression
– Jason
Nov 12 at 4:33












I removed that and added as ClassId="Image2" , now I'm getting cast error. Not working
– apple_92
Nov 12 at 5:15




I removed that and added as ClassId="Image2" , now I'm getting cast error. Not working
– apple_92
Nov 12 at 5:15












1 Answer
1






active

oldest

votes


















0














XAML



 <StackLayout Orientation="Horizontal" HorizontalOptions="Fill" Padding="0,5,0,5">
<Image x:Name="Image1" ClassId="Image1" Source="tickoff.png" HeightRequest="18">
<Image.GestureRecognizers>
<TapGestureRecognizer
Tapped="SelectedImage"
NumberOfTapsRequired="1" />
</Image.GestureRecognizers>
</Image>
<Label Text="Asian Foods" FontSize="16" HorizontalOptions="Center" Margin="5,0,0,0" TextColor="{StaticResource greyishBrown}" />
</StackLayout>

<StackLayout Orientation="Horizontal" HorizontalOptions="Fill" Padding="0,5,0,5">
<Image x:Name="Image2" ClassId="Image2" Source="tickoff.png" HeightRequest="18">
<Image.GestureRecognizers>
<TapGestureRecognizer
Tapped="SelectedImage"
NumberOfTapsRequired="1" />
</Image.GestureRecognizers>
</Image>
<Label Text="Japanese Foods" FontSize="16" HorizontalOptions="Center" Margin="5,0,0,0" TextColor="{StaticResource greyishBrown}"
/>
</StackLayout>


C#



public void SelectedImage(object sender, EventArgs eventArgs)
{
Image image = (Image)sender;
string imageString = image.ClassId;

DisplayAlert("Test", imageString ,"OK");
//TODO

}





share|improve this answer





















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    XAML



     <StackLayout Orientation="Horizontal" HorizontalOptions="Fill" Padding="0,5,0,5">
    <Image x:Name="Image1" ClassId="Image1" Source="tickoff.png" HeightRequest="18">
    <Image.GestureRecognizers>
    <TapGestureRecognizer
    Tapped="SelectedImage"
    NumberOfTapsRequired="1" />
    </Image.GestureRecognizers>
    </Image>
    <Label Text="Asian Foods" FontSize="16" HorizontalOptions="Center" Margin="5,0,0,0" TextColor="{StaticResource greyishBrown}" />
    </StackLayout>

    <StackLayout Orientation="Horizontal" HorizontalOptions="Fill" Padding="0,5,0,5">
    <Image x:Name="Image2" ClassId="Image2" Source="tickoff.png" HeightRequest="18">
    <Image.GestureRecognizers>
    <TapGestureRecognizer
    Tapped="SelectedImage"
    NumberOfTapsRequired="1" />
    </Image.GestureRecognizers>
    </Image>
    <Label Text="Japanese Foods" FontSize="16" HorizontalOptions="Center" Margin="5,0,0,0" TextColor="{StaticResource greyishBrown}"
    />
    </StackLayout>


    C#



    public void SelectedImage(object sender, EventArgs eventArgs)
    {
    Image image = (Image)sender;
    string imageString = image.ClassId;

    DisplayAlert("Test", imageString ,"OK");
    //TODO

    }





    share|improve this answer


























      0














      XAML



       <StackLayout Orientation="Horizontal" HorizontalOptions="Fill" Padding="0,5,0,5">
      <Image x:Name="Image1" ClassId="Image1" Source="tickoff.png" HeightRequest="18">
      <Image.GestureRecognizers>
      <TapGestureRecognizer
      Tapped="SelectedImage"
      NumberOfTapsRequired="1" />
      </Image.GestureRecognizers>
      </Image>
      <Label Text="Asian Foods" FontSize="16" HorizontalOptions="Center" Margin="5,0,0,0" TextColor="{StaticResource greyishBrown}" />
      </StackLayout>

      <StackLayout Orientation="Horizontal" HorizontalOptions="Fill" Padding="0,5,0,5">
      <Image x:Name="Image2" ClassId="Image2" Source="tickoff.png" HeightRequest="18">
      <Image.GestureRecognizers>
      <TapGestureRecognizer
      Tapped="SelectedImage"
      NumberOfTapsRequired="1" />
      </Image.GestureRecognizers>
      </Image>
      <Label Text="Japanese Foods" FontSize="16" HorizontalOptions="Center" Margin="5,0,0,0" TextColor="{StaticResource greyishBrown}"
      />
      </StackLayout>


      C#



      public void SelectedImage(object sender, EventArgs eventArgs)
      {
      Image image = (Image)sender;
      string imageString = image.ClassId;

      DisplayAlert("Test", imageString ,"OK");
      //TODO

      }





      share|improve this answer
























        0












        0








        0






        XAML



         <StackLayout Orientation="Horizontal" HorizontalOptions="Fill" Padding="0,5,0,5">
        <Image x:Name="Image1" ClassId="Image1" Source="tickoff.png" HeightRequest="18">
        <Image.GestureRecognizers>
        <TapGestureRecognizer
        Tapped="SelectedImage"
        NumberOfTapsRequired="1" />
        </Image.GestureRecognizers>
        </Image>
        <Label Text="Asian Foods" FontSize="16" HorizontalOptions="Center" Margin="5,0,0,0" TextColor="{StaticResource greyishBrown}" />
        </StackLayout>

        <StackLayout Orientation="Horizontal" HorizontalOptions="Fill" Padding="0,5,0,5">
        <Image x:Name="Image2" ClassId="Image2" Source="tickoff.png" HeightRequest="18">
        <Image.GestureRecognizers>
        <TapGestureRecognizer
        Tapped="SelectedImage"
        NumberOfTapsRequired="1" />
        </Image.GestureRecognizers>
        </Image>
        <Label Text="Japanese Foods" FontSize="16" HorizontalOptions="Center" Margin="5,0,0,0" TextColor="{StaticResource greyishBrown}"
        />
        </StackLayout>


        C#



        public void SelectedImage(object sender, EventArgs eventArgs)
        {
        Image image = (Image)sender;
        string imageString = image.ClassId;

        DisplayAlert("Test", imageString ,"OK");
        //TODO

        }





        share|improve this answer












        XAML



         <StackLayout Orientation="Horizontal" HorizontalOptions="Fill" Padding="0,5,0,5">
        <Image x:Name="Image1" ClassId="Image1" Source="tickoff.png" HeightRequest="18">
        <Image.GestureRecognizers>
        <TapGestureRecognizer
        Tapped="SelectedImage"
        NumberOfTapsRequired="1" />
        </Image.GestureRecognizers>
        </Image>
        <Label Text="Asian Foods" FontSize="16" HorizontalOptions="Center" Margin="5,0,0,0" TextColor="{StaticResource greyishBrown}" />
        </StackLayout>

        <StackLayout Orientation="Horizontal" HorizontalOptions="Fill" Padding="0,5,0,5">
        <Image x:Name="Image2" ClassId="Image2" Source="tickoff.png" HeightRequest="18">
        <Image.GestureRecognizers>
        <TapGestureRecognizer
        Tapped="SelectedImage"
        NumberOfTapsRequired="1" />
        </Image.GestureRecognizers>
        </Image>
        <Label Text="Japanese Foods" FontSize="16" HorizontalOptions="Center" Margin="5,0,0,0" TextColor="{StaticResource greyishBrown}"
        />
        </StackLayout>


        C#



        public void SelectedImage(object sender, EventArgs eventArgs)
        {
        Image image = (Image)sender;
        string imageString = image.ClassId;

        DisplayAlert("Test", imageString ,"OK");
        //TODO

        }






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 12 at 7:04









        Mustafa Mohammed Eldkhri

        161




        161






























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