How to acces Datakeys into a gridView_RowEditing

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I want to acces a datakey column into my grid, in the event of row editting, MY code is

VB

Private Sub grdOdGovori_RowEditing(sender As Object, e As GridViewEditEventArgs) Handles grdOdGovori.RowEditing
     

     
      Apoen = CDec(grdOdGovori.Rows(e.NewEditIndex).Cells(1).Text)
     
      VidTestiraniPari = grdOdGovori.SelectedDataKey("Sifratestirani").ToString
      BindGridRezultati()

  End Sub

And the error is: Object reference not set to an instance of an object. How can I acces the Datakey??

Posted 28-May-14 2:45am

Voley

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DamithSL · Answer 1 · 2014-05-28T02:50:00

Solution 1

in your gird aspx page, set the DataKeyNames property as your key column name, for example if it is ID then

C#

asp:GridView DataKeyNames ="ID"

then in your event method you can get the id value as below

C#

grdOdGovori.DataKeys(e.RowIndex).Value

ref:
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.gridview.datakeynames(v=vs.110).aspx[^]
if you have multiple keys as below

asp:GridView DataKeyNames ="ID,ID2"

then you can get each key as below
grdOdGovori.DataKeys(e.RowIndex).Values("ID1").ToString() and grdOdGovori.DataKeys(e.RowIndex).Values("ID2").ToString()

Posted 28-May-14 2:50am

DamithSL

Updated 28-May-14 3:08am

v3

Comments

Voley 28-May-14 8:53am

I have the same name as in the gridVie... I have two datakeys in my grid? Can that be the problem? Myy Key looks like DataKeyNames="Id1,Id2" ???

DamithSL 28-May-14 9:08am

check my updated answer

Voley 28-May-14 9:21am

I tryied that before, and the error was this "'RowIndex' is not a member of System.Web.UI.WebControls.GridViewEdit.EventArgs" --I am using that int row deleting and it works but here NO! :(