C# variable defined then redefined issue

Hey all I have a question that may or may not have the answer I am looking for.

I want to set the variable _data to something generic so that I can set it again with the proper class name in an if statement.

Example is:

public static void whichStatus(string dataName, object data, sessionVars sVars)
{
if (dataName == "SAVE_PNo_tTrip")
{
object _data; //This is where I attempt to set the variable generic
var pageName = data.GetType().DeclaringType.Name;
if (pageName == "CAttend")
{
CAttend.SAVE_PNo_tTrip _data = (CAttend.SAVE_PNo_tTrip)data;
//This is where I need to actually define the real data type for _data.
}
etc...etc...
}
switch (sVars.userCategory.ToUpper())
{
case "CCLASS":
//_data.ID;
break;
case "LNC":
//_data.ID;
//_data.Name;
break;
etc.. etc...
}

As you see from the above, I am trying to just set _data to something so that I actually define it in the if statement below it. I'll also need to access it from other places within that function so that's why I need to define it at the beginning. Though I am getting an error:

Error CS0136 A local or parameter named '_data' cannot be declared in this scope because that name is used in an enclosing local scope to define a local or parameter

Is it at all possible to do this the way I am trying to do it?

2 Replies

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Vivek Kumar9y ago
Yes, I agree with Nilesh. Just change the _data variable name from one place and you will not get the given error.
-1
Nilesh Shah9y ago
Your problem seems simple to me.

I see you have declared _data two times:

Once here:
object _data; //This is where I attempt to set the variable generic
and then here again:
CAttend.SAVE_PNo_tTrip _data = (CAttend.SAVE_PNo_tTrip)data;
Change the name of one of these and error will be gone
+2