Use of IDictionnary ??

  • Thread starter Thread starter Guest
  • Start date Start date
G

Guest

Dear all,

I have a set of measure named and values that need to be reade and write.
fro that I was thinking to use the IDictionnary object and use this
measureName/values key pairs.

In other words i should get the following list of pairs:

System.Collections.IDictionary m_SysValue = null;

m_SysValue.Add("TotalLength", "0");
m_SysValue.Add("QualityLength", "0");
m_SysValue.Add("QualityStartAt", "0");
m_SysValue.Add("Status", "0");

Then from an other class I should be able to read those pairs and update
there values. The update object is then pass back to the initial class. AS a
result I should get :

m_SysValue.Add("TotalLength", "1250");
m_SysValue.Add("QualityLength", "1250");
m_SysValue.Add("QualityStartAt", "12");
m_SysValue.Add("Status", "3);

When I get this values update, I read them back again and I should read the
name of each key ( which correspond to a database column) and then each
value to be store to proper field.

First of all, does the sue of IDictionnary can be use in that way ?
If yes how can I do this ?

thnaks for help
regards
serge
 
calderara said:
Dear all,

I have a set of measure named and values that need to be reade and write.
fro that I was thinking to use the IDictionnary object and use this
measureName/values key pairs.

In other words i should get the following list of pairs:

System.Collections.IDictionary m_SysValue = null;

m_SysValue.Add("TotalLength", "0");
m_SysValue.Add("QualityLength", "0");
m_SysValue.Add("QualityStartAt", "0");
m_SysValue.Add("Status", "0");
Click to expand...

There are two problems with this code.

1. You haven't created any collection, so there is nothing to add the
items to.

2. IDictionary is an interface, not a class, so you can't create
instances of it. You have to use an actual class, like
Dictionary said:
Then from an other class I should be able to read those pairs and update
there values. The update object is then pass back to the initial class. AS a
result I should get :

m_SysValue.Add("TotalLength", "1250");
m_SysValue.Add("QualityLength", "1250");
m_SysValue.Add("QualityStartAt", "12");
m_SysValue.Add("Status", "3);
Click to expand...

You don't add the items again, you just set the values:

m_SysValue["TotalLength"] = "1250";
m_SysValue["QualityLength"] = "1250";
m_SysValue["QualityStartAt"] = "12";
m_SysValue["Status"] = "3";
When I get this values update, I read them back again
Click to expand...

As you send a reference to the object to the method, the values are
changed directly in the original collection. There is no need to send
anything back.
 
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