Hi, All,
I have two dropdown lists in itemtemplate in a datagrid. for example, dropA
and dropB. also, for the dropdown, I set < Runat="server" AutoPostBack="T rue"
OnSelectedIndex Changed="some event name"> When users selects an item, it will
do a postback to server. Before the postback completes and the page
refreshes, click any dropdown menu again (either dropA or dropB) the frame
page will become blank out. I must to click F5 or refresh button to reload
the page. the problem is the two dropdown menu are in itemTemplate, so, they
may have more than one row. How could I disable the dropdown menus once they
has been click and enable them later.
any ideas?
Thank you for your help
Brian
2  1374 
Hi Brian,
in your DDL event, it should look like EventName(objec t sender,
System.EventArg s e), cast sender to DDL. And then disable it.
DropDownList ddlA = (DropDownList)s ender;
ddlA.Enabled = false;
HTH
Elton Wang
"Brian" wrote: Hi, All,
I have two dropdown lists in itemtemplate in a datagrid. for example, dropA
and dropB. also, for the dropdown, I set < Runat="server" AutoPostBack="T rue"
OnSelectedIndex Changed="some event name"> When users selects an item, it will
do a postback to server. Before the postback completes and the page
refreshes, click any dropdown menu again (either dropA or dropB) the frame
page will become blank out. I must to click F5 or refresh button to reload
the page. the problem is the two dropdown menu are in itemTemplate, so, they
may have more than one row. How could I disable the dropdown menus once they
has been click and enable them later.
any ideas?
Thank you for your help
Brian
Thanks, Elton,
I tried what you told me but it doesn't work. The codes looks like,
Protected Sub EventName_Selec tedIndexChanged (ByVal sender As Object, ByVal
e As System.EventArg s) Handles DataGridName.Se lectedIndexChan ged
Dim ddlA As DropDownList
ddlA = CType(sender, DropDownList)
ddlA.Enabled = False
......
......
End sub
after I clicked the dropdowns first time, it still can be selected for the
second time. it looks like the enable of dropdown hasn't been set to false.
did I miss something?
thank you!
"Elton W" wrote: Hi Brian,
in your DDL event, it should look like EventName(objec t sender,
System.EventArg s e), cast sender to DDL. And then disable it.
DropDownList ddlA = (DropDownList)s ender;
ddlA.Enabled = false;
HTH
Elton Wang
"Brian" wrote:
Hi, All,
I have two dropdown lists in itemtemplate in a datagrid. for example, dropA
and dropB. also, for the dropdown, I set < Runat="server" AutoPostBack="T rue"
OnSelectedIndex Changed="some event name"> When users selects an item, it will
do a postback to server. Before the postback completes and the page
refreshes, click any dropdown menu again (either dropA or dropB) the frame
page will become blank out. I must to click F5 or refresh button to reload
the page. the problem is the two dropdown menu are in itemTemplate, so, they
may have more than one row. How could I disable the dropdown menus once they
has been click and enable them later.
any ideas?
Thank you for your help
Brian This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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