Update specific column of a table in Entityframe work

Question

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Hi ,
i have a table with

SQL

ArticleID
Created_Date
CreatedBy
Modify_Date
Modify_By
IsActive
MemberID
ArticalTitle
ArticleTeaser
SEOFriendlyArticalTitle
ArticalDetails
CanDownloadAttachment
RoleTypeValue
ApprovedForPublish
ApprovedBy
EditorApprovalDate
TotalVisit
Ratting
TotalBooMarks
TotalDownload
TotalComments

this fields

when i update this table with

C#

db.CH_ArticleInfomation.Attach(ch_articleinfomation);


                db.ObjectStateManager.ChangeObjectState(ch_articleinfomation, EntityState.Modified);
                db.SaveChanges();

code

all fields are update
but I want to update only

C#

Modify_Date
Modify_By
IsActive

ArticalTitle
ArticleTeaser
SEOFriendlyArticalTitle
ArticalDetails
CanDownloadAttachment
RoleTypeValue
ApprovedForPublish

how do i do this in Entity Framework.

Posted 5-Apr-14 0:51am

KuntalBose

Updated 5-Apr-14 1:30am

Sampath Lokuge

v2

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2 solutions

Solution 2

Suppose you want to update the value of rating column. You have to write the following code
UPDATE TABLE_NAME SET RATING='" & Textbox1.text & "' WHERE ID=" & Textbox2.Text & "

Posted 5-Apr-14 2:31am

Avijit Atta

Updated 5-Apr-14 2:33am

v2

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Sampath Lokuge · Accepted Answer · 2014-04-05T01:59:00

Please try is as below.This is just a sample.Adjust it according to your app.

Step 1 : Retrieve your db object which you want to update.

i.e.

SQL

var invoiceConfigobj = (from invoiceConfig in Catalog.InvoiceConfigurations
                                 where invoiceConfig.Provider.Id == providerId
                                 select invoiceConfig).SingleOrDefault();

Step 2 : After that update the fields which you want and save it back.

i.e.

C#

invoiceConfigobj.IsAllowInvoice = allowInvoice;
invoiceConfigobj.IsCustomerInvoice = customerInvoice;
invoiceConfigobj.Schedule = scheduleType;
invoiceConfigobj.ScheduleDate = scheduleDate;
Catalog.SaveChanges();