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Dynamic table

Posted on 2004-09-29
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Last Modified: 2010-04-23
I have the following requirement:
Step 1: User clicks a "button" to launch a form that asks the number of rows & columns s/he wants. S/he enters the number of rows & columns and hits "Next"
Step 2: In the next window a table with the number of rows & columns appears. User enters some value and submits it to a SQL Server database
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Step 3: These values of the rows & columns are later retrieved from the database and displayed as a table in a browser using XML & XSLT
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Question: I am familiar with Step 3, but not sure how to proceed with developing the dynamic table wizard. I presume we must use Datagrid. Any inputs will make my day :)

Regards,
Naren
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Question by:narenonline2k
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by:arif_eqbal
ID: 12187589
ASP.NET or Windows Form???
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by:narenonline2k
ID: 12228223
It is for Windows Form
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arif_eqbal earned 250 total points
ID: 12234223
You surely have to use DataGrid....
Say the user enters R rows C Cols then on NEXT Click:

Dim DT As DataTable=New DataTable()
Dim i as Integer

'Create the Columns for the Table
For i=0 to C-1
DT.Columns.Add("Col" & Cstr(i), Type.GetType("System.String"))
Next

'Now this is assuming all Cols are String in case there are different dataTypes you'll have to devise a mechanism, may be the user will provide the dataTypes too

Then

DataGrid1.DataSource = DT

'This will show a Grid with appropriate number of Cols. Now as for the Rows it will only show One Row when the user clicks on it he goes into Edit mode and automatically a new row will also append. If this is OK then that is it otherwise you need to Add dummy Rows to the dataTable may be you can add blank Rows like.

Dim Dr As DataRow
Dr = DT.NewRow
Dr(0)=""
DT.Rows.Add(Dr)

You can put this also in a loop till the No of rows R




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