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Help with assigning value of previous row to new row added in DataGridView

Posted on 2016-10-03
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Last Modified: 2016-10-04
Hi,

When adding data in a new row in my DataGridView, I need to automatically assign the COUNTRY column, country value from the previous row or a value from a textbox. How do I achieve this using VB.NET?  Also , How save the record only if more than one column is populated in new row added?

Thanks,

Victor
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Question by:vcharles
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LVL 25

Expert Comment

by:Pawan Kumar
ID: 41827399
Sample example  !! Enjoy !!

Dim newCustomersRow As DataRow = DataSet1.Tables("Customers").NewRow()

newCustomersRow("CustomerID") = "Pawan1312"
newCustomersRow("COUNTRY") = "United States"

DataSet1.Tables("Customers").Rows.Add(newCustomersRow)

DataSet1.Tables(0)(ds.Tables(0).Rows.Count - 1)("COUNTRY") = "United States"
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Author Comment

by:vcharles
ID: 41827400
Hi,

Which method of thr Grid do I include the code?

Thanks,

Victor
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LVL 25

Expert Comment

by:Pawan Kumar
ID: 41827403
You can internally use datatable.

You must be using the datatable as a source to a GridView.  You have to use button click event

When you add a new row in GridView , add a row in the table just as mentioned above. After that change the previous row's country

after that again assign that datatable to the GridView
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Accepted Solution

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Pawan Kumar earned 500 total points
ID: 41827407
May be something like below

Create a new button, on click on that event call below-

Protected Sub AddNewRecord(ByVal sender As Object, ByVal e As EventArgs )
     
	--Get datatable from session
	
	Dim newCustomersRow As DataRow = DataSet1.Tables("Customers").NewRow()

	newCustomersRow("CustomerID") = "Pawan1312"
	newCustomersRow("COUNTRY") = "United States"

	DataSet1.Tables("Customers").Rows.Add(newCustomersRow)

	DataSet1.Tables(0)(ds.Tables(0).Rows.Count - 1)("COUNTRY") = "United States"
	 
    gridView.datasource = DataSet1.Tables(0);
	
	BindData();            

End Sub

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3 Use Cases for Connected Systems

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, testing some more, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us.

 
LVL 25

Expert Comment

by:Pawan Kumar
ID: 41827491
Hi, Do you need more info on this?
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Author Comment

by:vcharles
ID: 41827750
Hi

Will test code this morning and get back to you..

Thanks,

Victor
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LVL 25

Expert Comment

by:Pawan Kumar
ID: 41827771
Here is a sample VB.Net project for you!



Enjoy !
Demo.zip
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Author Closing Comment

by:vcharles
ID: 41827786
Thank you.
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Featured Post

3 Use Cases for Connected Systems

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, testing some more, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us.

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