I want to create a Blazor DropDown component and I would use reflection in it. I give the data, the name of the text property and the name of the value property as parameters for it. Unfortunatelly when I get the value of the property it throws NullReferenceException after I get the value:
@foreach (TItem item in Data ?? Array.Empty<TItem>())
{
PropertyInfo prop = typeof(TItem).GetProperty(ValueProperty);
string text = prop.GetValue(item, null).ToString();
...
}
@code {
[Parameter]
public IEnumerable<TItem> Data { get; set; }
[Parameter]
public string ValueProperty { get; set; }
[Parameter]
public string TextProperty { get; set; }
}
TItem is:
public class DropDownData
{
public int ValueInt { get; set; }
public string ValueString { get; set; }
public string Text { get; set; }
}
Thank you in advance.
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