Vb net matching datagrdviews values another datagrigview

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Hi I have two datagrid view

1 is like this
col1 col2
1 a
2 b
3 c
4 d

2is like tihs
col1 col2
1 50,00
2 70,00
3 21,00
4 32,00

so i want first datagridview like this

col1 col2
a 50,00
b 70,00
c 21,00
d 32,00

can you help for this problem
thanks

What I have tried:

i tried for next two data gridview but i have error

Posted 12-Sep-19 1:50am

Member 14588284

Updated 12-Sep-19 3:49am

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RickZeeland · Answer 1 · 2019-09-12T01:56:00

Solution 1

You could use DataBinding, see example here: https://www.dotnetperls.com/datagridview-vbnet[^]
Then use a DataTable with all columns in it as the DataGridView1.DataSource.

Posted 12-Sep-19 1:56am

RickZeeland

Comments

Member 14588284 12-Sep-19 8:09am

thanks for return
I get both tables from the oracle connection
but I need to match the columns over two tables after the query.
I read the article but could not find anything related to my question

RickZeeland 12-Sep-19 8:27am

Then you need a SELECT something like this:
SELECT a.name, b.value FROM myTable1 a INNER JOIN myTable2 b WHERE a.id = b.id;
Also see: https://www.techonthenet.com/oracle/alias.php

Member 14588284 12-Sep-19 8:37am

can i use datagridview in query?

i say , when i use join in my oracle query time is getting longer

RickZeeland 12-Sep-19 9:44am

Then your tables are quite big probably, you should index them on the field that you want to use in the WHERE clause.

Member 14588284 12-Sep-19 8:24am

my code like this

and error is this address
https://yadi.sk/i/4tMuaDzBZLyZ-g

With Me.reyon
' .Columns(0).DefaultCellStyle.Format = "#"
Try
For i = 0 To .Rows.Count - 1

For i2 = 0 To reyonadıfrm.Rows.Count - 1
If .Rows(i).Cells(0).Value = reyonadıfrm.Rows(i2).Cells(0).Value Then
.Rows(i).Cells(0).Value = reyonadıfrm.Rows(i2).Cells(1).Value
End If

Next i2

Next i

Member 14588284 12-Sep-19 9:59am

Sub match()
With reyon
On Error Resume Next
For i = 0 To .Rows.Count - 1
.Rows(i).Cells(1).Value = Val(.Rows(i).Cells(1).Value * 1)
For i2 = 0 To reyonadıfrm.Rows.Count - 1
' .Rows(i).Cells(0).Value.ToString()
If .Rows(i).Cells(0).Value = reyonadıfrm.Rows(i2).Cells(0).Value Then
.Rows(i).Cells(0).Value = .Rows(i).Cells(0).Value & "-" & reyonadıfrm.Rows(i2).Cells(1).Value
Exit For
End If

Next i2

Next i
End With
End Sub

I changed my codes like this
so ı do it
bu now i have an ordering problem

codes order column(1) like text
like this link;
https://yadi.sk/i/OtS6Xqe_Q-h48A

RickZeeland 12-Sep-19 10:05am

Use an SQL query with an ORDER BY clause.

Member 14588284 12-Sep-19 10:12am

but i Get these data fromdatagridview

RickZeeland 12-Sep-19 12:31pm

Don't, use the right query to get the data from the Oracle database, SQL is much better suited for this purpose. After you have read the data in a DataTable or a List use DataBinding to bind it to the DataGridView.