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0 Votescustom function for DataColumn Expression
But the second one is just a copy of col1, be aware that for an expression you need an extra datacolumn. To be honnest, I used the DataTable until Linq ...Unanswered | 5 Replies | 2119 Views | Created by usseer - Monday, February 26, 2018 3:13 PM | Last reply by Cor Ligthert - Monday, February 26, 2018 4:46 PM
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DataColumn Expression Aggregate Function with Filtering
DataColumn in the parent DataTable that uses an aggregation function like Count, but I only want to count rows in the child table that meet a certain filtering criteria. An ... -
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DataColumn Expression
Evaluating data before data is present... like putting the carriage before the horse. You would probably have to use a seperate expression ...Answered | 1 Replies | 4531 Views | Created by happy_84k - Monday, August 20, 2007 3:55 PM | Last reply by goose007 - Monday, August 20, 2007 7:55 PM -
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DataColumn Expression Evaluation
exit the DataGridView, otherwise it remains empty. I wanted to ask is there any way to force the 'Expression' property of a DataColumn to evaluate, for e.g. when ...Answered | 10 Replies | 4194 Views | Created by Vaibhav Sawhney - Monday, May 28, 2012 6:18 AM | Last reply by Cor Ligthert - Thursday, May 31, 2012 8:55 AM -
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DataColumn Expression Between
Actually the ADO.NET DataColumn Expression article does mention the "Between" but gives no examples. There are several forum posts and a stackoverflow that says Between is ...Answered | 3 Replies | 4350 Views | Created by Raamakarthikeyan - Thursday, September 20, 2012 9:26 AM | Last reply by Jordan B - Friday, November 2, 2012 5:53 PM -
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DataColumn Expression Error
Dear All, I have problem with DataColumn. Expression An unhandled exception of type ...Answered | 2 Replies | 5508 Views | Created by dotnetsr - Thursday, May 10, 2007 3:42 PM | Last reply by dotnetsr - Sunday, May 13, 2007 2:32 PM -
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DataColumn Expression Support for Byte Array
Is there any support for the System.Byte[] datatype in DataColumn expessions? I would like to at least be able to get the length as in: col.Expression = ...Unanswered | 1 Replies | 2848 Views | Created by JCMeyer - Monday, January 29, 2007 1:05 PM | Last reply by VMazur - Tuesday, January 30, 2007 11:23 AM -
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Problem with Datacolumn aggregate expression
I have a master table named Orders and a detail table named Orders_detail. (Xtreme Access db) I succeeded in calculating the sum of the field [Orders_detail.Qty] by using a ... -
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Custom function in datacolumn.expression
sorry what type of custom function? The expression property will only evaluate certain results/criteria for that datacolumn, such as sum/avg/max ...Answered | 6 Replies | 4983 Views | Created by hmgsh - Saturday, May 24, 2008 10:01 AM | Last reply by extreme-paranoia - Friday, January 23, 2009 1:11 AM -
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DataColumn Expression Error with LookUp
DataTable) CustomerName should be fetched into CustomerName Column of DataGrid(i mean DataTable). For this We should set DataColumn Expression for ...Answered | 5 Replies | 3001 Views | Created by dotnetsr - Thursday, May 17, 2007 2:28 PM | Last reply by dotnetsr - Tuesday, May 22, 2007 5:59 AM -
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DataColumn Expression on bound DataGridView
) Handles MyBase.Load Try ConnectToDb() Dim sql As String = "SELECT surname, name, jobCode ...Answered | 1 Replies | 4961 Views | Created by Raoul_BennetH - Tuesday, August 12, 2008 9:10 AM | Last reply by Martin Xie - MSFT - Monday, August 18, 2008 8:40 AM -
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Datacolumn Expression type conversion error??
result to 2 decimal places. the expression should be working..... So, I took it further. If you just do an expression ...Unanswered | 2 Replies | 365 Views | Created by hfarner - Friday, November 20, 2020 3:36 PM | Last reply by Viorel_ - Saturday, November 21, 2020 9:54 AM -
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DataColumn Expression, to calc Date difference
However it does not work, I can't find a suitable Date function for this, even I have checked functions described in MSDN:Answered | 2 Replies | 3269 Views | Created by Vincent 0 - Tuesday, April 11, 2006 1:06 AM | Last reply by VMazur - Tuesday, April 11, 2006 1:19 AM -
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DataColumn Expression does not calculate
I’m sorry for unclearly. Your code is works well and there is no need to change it. My sampleAnswered | 3 Replies | 2078 Views | Created by Tom R.1956 - Thursday, August 23, 2012 4:25 PM | Last reply by Mark Liu-lxf - Monday, August 27, 2012 2:16 AM -
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Adding custom metadata to DataColumn
DataColumn.ExtendedProperties is one way of adding custom data to a DataColumn. However, this has several limitations. Firstly, it is String-only, ... -
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DataColumn Expression Row Serial Number Generating
dt.Columns.Add(New DataColumn("ProdID", GetType(String))) dt.Columns.Add(New DataColumn("Price", ...Answered | 2 Replies | 5378 Views | Created by dotnetsr - Sunday, May 13, 2007 6:09 AM | Last reply by dotnetsr - Sunday, May 20, 2007 2:41 PM -
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edit datacolumn with expression, in datagridview
I have a datatable with some columns calculated by expression, say "IIF(column1 = 'Maybe 1', '1', '2')". But in rare cases theAnswered | 1 Replies | 2739 Views | Created by visual ryan - Wednesday, April 2, 2008 6:54 PM | Last reply by AlexBB - Vista Ult64 SqlSer64 WinSer64 - Wednesday, April 2, 2008 9:29 PM -
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Strongly typed DataColumn expression never evaluates?
I'm a bit stumped by the default behaviour of a strongly typed DataSet with a DataColumn expression. I've put together a basic DataTable using the designer, with three ...Answered | 2 Replies | 3318 Views | Created by Snixtor - Wednesday, May 25, 2011 12:04 AM | Last reply by Snixtor - Wednesday, May 25, 2011 8:18 AM -
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Binding to Custom Property/DataColumn?
So there is no way for me to programmatically create a computed DataColumn that can be bound along with the designer generated DataColumns? We can create a ...Answered | 9 Replies | 3802 Views | Created by sroughley - Friday, March 13, 2009 3:22 PM | Last reply by sroughley - Thursday, March 19, 2009 9:04 AM - Items 1 to 20 of 2523672 Next ›
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