how to update column use as ID Control without save null

Abdalla Elawad

Hi Guys

Salam

I use gridview convert fields as template deal with specific table , generally i have dropdownlist as control id of other dropdownlist works good as ID but when we update its save null

please slove this my problem

thanks

Code Source :

SortExpression="First_Supervisor">

" autopostback="True" <="" div="">

DataSourceID="SqlDataSource4" DataTextField="EmpName"

DataValueField="EmpName">

ConnectionString="<%$ ConnectionStrings:Cash_PlanConne %>"

SelectCommand="select EmpName from EmployeesBasic2 where job='Custodian_1'">

_______________________________________________________________________

DataSourceID="SqlDataSource43" DataTextField="ID_Number" Width="110"

DataValueField="ID_Number">

ConnectionString="<%$ ConnectionStrings:Cash_PlanConne %>"

SelectCommand="SELECT [ID_Number] FROM [EmployeesBasic2] WHERE ([EmpName] = @EmpName)">

PropertyName="SelectedValue" Type="String" />

Thanks

3 Replies

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Naveen Bisht9y ago
it is saving null value due to it is unable to find dropdown value at row data bound action of grid view. i have suggest you url so you can understand how it is working.

if we take any control inside grid view we need to get value of that on row data command or event where you want

now i am sharing you same example you are looking pls have a look

http://www.c-sharpcorner.com/UploadFile/20abe2/get-row-cell-value-from-grid-view-of-checked-checkbox-in-asp/
Abdalla Elawad9y ago
Thank you
Naveen Bisht
This is good link but my problem doesn't solve

why save Null Value ?
Naveen Bisht9y ago
you need to set and get dropdown value at row data item command. below links will help you better regarding same.

http://www.aspdotnet-suresh.com/2012/05/aspnet-gridview-examples-and-samples-in.html