Treat control as either ComboBox or TextBox
.net, c#, generics
Solution
Use `Type.GetType()`. You just have to input a `string` representation of your property in.
if (sender is ComboBox || sender is TextBox)
{
var type = Type.GetType(sender.GetType().AssemblyQualifiedName, false, true);
var textValue = type.GetProperty("Text").GetValue(sender, null);
}
This also allows you to set the value of your properties too.
type.GetProperty("Text").SetValue(sender, "This is a test", null);
You could move this to a helper method to save rewriting code.
public void SetProperty(Type t, object sender, string property, object value)
{
t.GetProperty(property).SetValue(sender, value, null);
}
public object GetPropertyValue(Type t, object sender, string property)
{
t.GetProperty(property).GetValue(sender, null);
}
There is also room for exception handling by using this method.
var property = t.GetProperty("AutoCompleteMode");
if (property == null)
{
//Do whatever you need to do
}
Problem
What is the best way to solve the following problem? ``` foreach (Control control in this.Controls) { if (control is ComboBox || control is TextBox) { ComboBox controlCombobox = control as ComboBox; TextBox controlTextbox = control as TextBox; AutoCompleteMode value = AutoCompleteMode.None; if (controlCombobox != null) { value = controlCombobox.AutoCompleteMode; } else if (controlTextbox != null) { value = controlTextbox.AutoCompleteMode; } // ... } } ``` You see it's complicated enough to get the AutoCompleteMode-property. You can assume that it is guaranteed that I have either a ComboBox or a TextBox. My first idea was to use generic with multiple types for T, but it seems that this is not possible in .NET: ``` public string GetAutoCompleteModeProperty<T>(T control) where T: ComboBox, TextBox // this does not work, of course ``` Sadly the both Controls don't have a common base class. Note: This is meant to be a more general question used with a minimized example. In my case, I also want to access / manipulate other the AutoComplete*-proprties (which also both Controls have in common). Thanks for ideas!