In a datagridview, when you select the last row, it is marked with an * in the left hand column and when you update the table adapter manager, the datagridview knows to run the insert method. Is there a way to programatically mark a row as new? For instance, I have a datagridview full with data and an extra column at the end that is empty when the view is filled. I would like the row to become marked as "new" any time a value is entered in the extra column at the end. Is this possible?

There is a SetAdded() method in the DataRow class but i'm not sure if this is what you need.

There is a SetAdded() method in the DataRow class but i'm not sure if this is what you need.

This sounds like it may work, but I can't figure out the context to put it in. I've tried a bunch of things (the tableadapter, the datagridview, the data table in the dataset). But none of these recognize the SetAdded method.

Hi MethodMas,

Please look at this document
http://msdn.microsoft.com/en-us/library/system.data.datarow.setadded.aspx

For example:
this.dataSet1.Tables[0].Rows[0].SetAdded();
This code will set the first row in the first table in DataSet1 as an Added Row. The RowState of it will be "DataRowState.Added ".

Is this what you are looking for?

Sincerely,
Kira Qian

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in this example, you can not code this.dataSet1.Tables[0].Rows[0].SetAdded();
because you get the following error:

Value of type 'System.Data.DataTableCollection' cannot be converted to 'System.Data.DataRow'.

Hello,

Does the first row in the first table in the dataset is the one you want to change RowState?
Here is the document about DataRow.SetAdded Method
http://msdn.microsoft.com/en-us/library/system.data.datarow.setadded.aspx

If you have any question, please post your code. That can help us to find a better solution.

Sincerely,
Kira Qian

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