DataSets in Child Forms

  • Thread starter Thread starter 2003et
  • Start date Start date
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2003et

Couldn't I create DataSet in child forms????

Is there any solution for this???

Thanks in advance!

E.T.
 
2003et,

You can create a data set anywhere like this:

// Create a data set.
DataSet pobjDataSet = new DataSet();

But it wouldn't provide you with much off the bat. What are you trying
to do, or what are you finding you can't do?
 
Hi Nicholas,

I am writing what exactly my situation is:

I first create a form and set it as mdicontainer, then, create a second form
and set its mdiparent property to first form. Now I have two forms, parent
and child form.

Now, I can create dataset in parent form as you said:
DataSet ds = new DataSet();

But I cannot create the dataset in the second form...
DataSet ds2 = new DataSet();

It gives error:
F:\Ruhsat\M1.cs(2429): The type or namespace name 'DataSet' could not be
found (are you missing a using directive or an assembly reference?)

using System.Data.SqlClient; is there and I can create sqlcommand for
example, but I cannot create DataTable or DataSet.

Please try it, on VS.NET 2002

Thanks....



Nicholas Paldino said:
2003et,

You can create a data set anywhere like this:

// Create a data set.
DataSet pobjDataSet = new DataSet();

But it wouldn't provide you with much off the bat. What are you trying
to do, or what are you finding you can't do?


--
- Nicholas Paldino [.NET/C# MVP]
- (e-mail address removed)

2003et said:
Couldn't I create DataSet in child forms????

Is there any solution for this???

Thanks in advance!

E.T.
Click to expand...
Click to expand...
 
2003et,

You will want to place the following at the head of your file:

using System.Data;

The DataSet class is located in the System.Data namespace, and this will
allow you to use the short notation for the DataSet class. Alternatively,
you can do this:

// Create the dataset.
System.Data.DataSet pobjDataSet = new System.Data.DataSet();

But you can see how this would get tedious.

Finally, make sure that you have a reference to System.Data.dll.

Hope this helps.


--
- Nicholas Paldino [.NET/C# MVP]
- (e-mail address removed)

2003et said:
Hi Nicholas,

I am writing what exactly my situation is:

I first create a form and set it as mdicontainer, then, create a second form
and set its mdiparent property to first form. Now I have two forms, parent
and child form.

Now, I can create dataset in parent form as you said:
DataSet ds = new DataSet();

But I cannot create the dataset in the second form...
DataSet ds2 = new DataSet();

It gives error:
F:\Ruhsat\M1.cs(2429): The type or namespace name 'DataSet' could not be
found (are you missing a using directive or an assembly reference?)

using System.Data.SqlClient; is there and I can create sqlcommand for
example, but I cannot create DataTable or DataSet.

Please try it, on VS.NET 2002

Thanks....



message news:[email protected]...
2003et,

You can create a data set anywhere like this:

// Create a data set.
DataSet pobjDataSet = new DataSet();

But it wouldn't provide you with much off the bat. What are you trying
to do, or what are you finding you can't do?


--
- Nicholas Paldino [.NET/C# MVP]
- (e-mail address removed)

2003et said:
Couldn't I create DataSet in child forms????

Is there any solution for this???

Thanks in advance!

E.T.
Click to expand...
Click to expand...
Click to expand...
 
Dear Nicholas,

Thank you so much!

I was about to get crazy!

Yes, you are right, I added using System.Data and it is ok now!

Thanks again!!!

Nicholas Paldino said:
2003et,

You will want to place the following at the head of your file:

using System.Data;

The DataSet class is located in the System.Data namespace, and this will
allow you to use the short notation for the DataSet class. Alternatively,
you can do this:

// Create the dataset.
System.Data.DataSet pobjDataSet = new System.Data.DataSet();

But you can see how this would get tedious.

Finally, make sure that you have a reference to System.Data.dll.

Hope this helps.


--
- Nicholas Paldino [.NET/C# MVP]
- (e-mail address removed)

2003et said:
Hi Nicholas,

I am writing what exactly my situation is:

I first create a form and set it as mdicontainer, then, create a second form
and set its mdiparent property to first form. Now I have two forms, parent
and child form.

Now, I can create dataset in parent form as you said:
DataSet ds = new DataSet();

But I cannot create the dataset in the second form...
DataSet ds2 = new DataSet();

It gives error:
F:\Ruhsat\M1.cs(2429): The type or namespace name 'DataSet' could not be
found (are you missing a using directive or an assembly reference?)

using System.Data.SqlClient; is there and I can create sqlcommand for
example, but I cannot create DataTable or DataSet.

Please try it, on VS.NET 2002

Thanks....



message news:[email protected]...
2003et,

You can create a data set anywhere like this:

// Create a data set.
DataSet pobjDataSet = new DataSet();

But it wouldn't provide you with much off the bat. What are you trying
to do, or what are you finding you can't do?


--
- Nicholas Paldino [.NET/C# MVP]
- (e-mail address removed)

Couldn't I create DataSet in child forms????

Is there any solution for this???

Thanks in advance!

E.T.
Click to expand...
Click to expand...
Click to expand...
 
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