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You are creating a DataTable. You use the following code segment to create the DataTable. (Line numbers are included for reference only.) 01 Dim dt As New DataTable("Products") 02 dt.Columns.Add(New DataColumn("Price", _ GetType(Decimal))) 03 dt.Columns.Add(New DataColumn("Quantity", _ GetType(Int32))) 04 Dim dc As DataColumn = New DataColumn("Total", _ GetType(Decimal)) 05 dt.Columns.Add(dc) You need to ensure that the Total column is set to the value of the Price column multiplied by the Quantity column when new rows are added or changed. What should you do? （）
- A、Add the following code segment after line 05. dc.ExtendedProperties("Total") = "Price * Quantity"
- B、Add the following code segment after line 05. dc.Expression = "Price * Quantity"
- C、Write an event handler for the DataTable's TableNewRow event that updates the row's Total.
- D、Write an event handler for the DataTable's ColumnChanged event that updates the row's Total.
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更多 “ You are creating a DataTable. You use the following code segment to create the DataTable. (Line numbers are included for reference only.) 01 Dim dt As New DataTable("Products") 02 dt.Columns.Add(New DataColumn("Price", _ GetType(Decimal))) 03 dt.Columns.Add(New DataColumn("Quantity", _ GetType(Int32))) 04 Dim dc As DataColumn = New DataColumn("Total", _ GetType(Decimal)) 05 dt.Columns.Add(dc) You need to ensure that the Total column is set to the value of the Price column multiplied by the Quantity column when new rows are added or changed. What should you do? （）A、Add the following code segment after line 05. dc.ExtendedProperties("Total") = "Price * Quantity"B、Add the following code segment after line 05. dc.Expression = "Price * Quantity"C、Write an event handler for the DataTable's TableNewRow event that updates the row's Total.D、Write an event handler for the DataTable's ColumnChanged event that updates the row's Total.” 相关考题
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单选题You work as a network Exchange administrator at Company.com.The Company.com network currently consists of a single Active Directory forest containing a single domain named Company.com.The Company.com organization makes use of Microsoft Exchange Server 2010 as their messaging solution.During the course of the week you receive an instruction from the CIO to stop internal users from sending e-mail messages containing the words "Classified Data" to users outside the organization. What should you do？（）A
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单选题You work as the enterprise exchange administrator at Company.com.The Company.com network consists of a single Active Directory domain named Company.com.Company.com has an Exchange Server 2010 organization.You have received instructions from the CIO to support Autodiscover from the Internet by creating a resource record in DNS.What should you do？（）A
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单选题You are employed as the exchange administrator at Company.com.the Company.com network contains an exchange 2010 organization.you are responsible for managing an exchange server 2010 mailbox server named -ex01.You are in the process of implementing a policy that deletes e-mail messages automatically after 60 days.You receive an instruction from management to identify another location where users can store their messages after 60 days.However， administrators need to locate the e-mail messages in both locations when executing multi- mailbox searches. What should you do？（）A
You should consider creating a Retention Policy.B
You should consider creating a.pst file for each user that is stored in a shared folder.C
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You should consider creating a journal rule.
考题
单选题You are creating a DataTable. You use the following code segment to create the DataTable. (Line numbers are included for reference only.) 01 Dim dt As New DataTable("Products") 02 dt.Columns.Add(New DataColumn("Price", _ GetType(Decimal))) 03 dt.Columns.Add(New DataColumn("Quantity", _ GetType(Int32))) 04 Dim dc As DataColumn = New DataColumn("Total", _ GetType(Decimal)) 05 dt.Columns.Add(dc) You need to ensure that the Total column is set to the value of the Price column multiplied by the Quantity column when new rows are added or changed. What should you do? （）A
Add the following code segment after line 05. dc.ExtendedProperties(Total) = Price * QuantityB
Add the following code segment after line 05. dc.Expression = Price * QuantityC
Write an event handler for the DataTable's TableNewRow event that updates the row's Total.D
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