DataGridView DataGridViewComboBoxColumn Datasource not clearing


hi,

i have datagrid has about 2700 records in it. i'm looping each row can filter dropdown datasource on row row basis. works fine. 

when close , re-open form not clearing memory form used.

as far can tell line

   ((datagridviewcomboboxcell)this[cell.owningcolumn.index, i]).datasource = selectdatatable(filter.datasorce, filterstring)

the select datatable code:

      datatable selectdatatable(datatable dt, string searchstring)      {        datatable returndt = dt.clone();          returndt.beginloaddata();          foreach (datarow dr in dt.select(searchstring))        {          returndt.loaddatarow(dr.itemarray, loadoption.overwritechanges);        }          returndt.endloaddata();          return returndt;        }

im not sure if holding on datatable when doesnt need , if how clear them out.

any :)

hi,

welocme msdn forum. posting here.

could show what's data source?  , please make sure filterstring changed @ run time. have made same code project, , works on own machine. think it's filterstring problem.

thanks understanding , support.

best regards,
rocky yue[msft]
msdn community support | feedback us
get or request code sample microsoft
please remember mark replies answers if , unmark them if provide no help.




Visual Studio Languages  ,  .NET Framework  >  Visual C#



Comments

Post a Comment

Popular posts from this blog

Azure DocumentDB Owner resource does not exist

having same error microsoft.azure.documents.documentclientexception: message: {"errors":["owner resource not exist"]} , scenario. when deployed webapp azure , try document docdb throws error. docdb exists in azure , contains document looking for. weird local machine(running vs) works fine. i'm using same settings in azure , local. have , idea this. thanks Microsoft Azure  >  Azure Cosmos DB
Read more

job syspolicy_purge_history job fail in sqlserver 2008

Image
hello guys, when installed sqlserver,it automatically created 1 job name job syspolicy_purge_history. but failed @ step 1. the reason is: date                11/6/2010 2:00:00 am log                job history (syspolicy_purge_history) step id                1 server                mxosv-otsdb01 job name                syspolicy_purge_history step name                verify automation enabled. duration                00:00:00 sql severity                16 sql message id                34022 operator emailed                operator net sent                operator paged                retries attempted                0 message executed user: nt authority\system. policy automation turned off. [sqlstate 42000] (error 34022).  the step failed. have run statement: select msdb.dbo.fn_syspolicy_is_automation_enabled the returned valus 0. what can resolve it? or can delete job manually.   thanks in advance. if haven't things want,be
Read more

Trying to register with public marketplace error with 'Get-AzureStackStampInformation'

when trying register against public azure adfs azure stack error below. logs can found at: c:\maslogs\azurestack.azureregistration.2017-10-12.01-31-23.log  and  \\azs-ercs01\c$\maslogs error occurred checking stamp information: system.management.automation.remoteexception: term 'get-azurestackstampinformation' not recognized name of cmdlet, function, script file, or operable program. check spelling of name, or if path included, verify path correct , try again. @ c:\azurestack-tools-master\registration\registerwithazure.psm1:1106 char:5 +     throw "logs can found at: $global:azureregistrationlog  and  \ ... +     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~     + categoryinfo          : operationstopped: (logs can fou... , try again.:string) [], runtimeexception     + fullyqualifiederrorid : logs can found at: c:\maslogs\azurestack.azureregistration.2017-10-12.01-31-23.log  a    nd  \\azs-ercs01\c$\maslogs error occurred chec
Read more