I have 2 dropdownlist on a page. They have ViewState = true. After I
submit to the page, the selection in the DropDownList is lost. I set a
break in the Page_Load event to make sure that I wasn't re-binding them
somehow... I'm not. So shouldn't they maintain their selection?
Anything you can think of to check?
Thanks-
Steve
8  5230 
DropDownList must remember their selection!
I have this example and it works fine...
This page when selected value change make a postback.
Selected value in DropDownList never change.
[C# - CodeBehind]
if (!IsPostBack)
{
ArrayList al = new ArrayList();
al.Add("aa");
al.Add("bb");
al.Add("cc");
DropDownList1.D ataSource = al;
DropDownList1.D ataBind();
al.Add("dd");
DropDownList2.D ataSource = al;
DropDownList2.D ataBind();
}
[ASPX page]
<asp:DropDownLi st AutoPostBack="T rue" id="DropDownLis t1"
runat="server"> </asp:DropDownLis t>
<asp:DropDownLi st AutoPostBack="T rue" id="DropDownLis t2"
runat="server"> </asp:DropDownLis t>
Brun
"sklett" <as**@fkd.com > wrote in message
news:%2******** ********@tk2msf tngp13.phx.gbl. .. I have 2 dropdownlist on a page. They have ViewState = true. After I
submit to the page, the selection in the DropDownList is lost. I set a
break in the Page_Load event to make sure that I wasn't re-binding them
somehow... I'm not. So shouldn't they maintain their selection?
Anything you can think of to check?
Thanks-
Steve
DropDownList must remember their selection!
I have this example and it works fine...
This page when selected value change make a postback.
Selected value in DropDownList never change.
[C# - CodeBehind]
if (!IsPostBack)
{
ArrayList al = new ArrayList();
al.Add("aa");
al.Add("bb");
al.Add("cc");
DropDownList1.D ataSource = al;
DropDownList1.D ataBind();
al.Add("dd");
DropDownList2.D ataSource = al;
DropDownList2.D ataBind();
}
[ASPX page]
<asp:DropDownLi st AutoPostBack="T rue" id="DropDownLis t1"
runat="server"> </asp:DropDownLis t>
<asp:DropDownLi st AutoPostBack="T rue" id="DropDownLis t2"
runat="server"> </asp:DropDownLis t>
Brun
"sklett" <as**@fkd.com > wrote in message
news:%2******** ********@tk2msf tngp13.phx.gbl. .. I have 2 dropdownlist on a page. They have ViewState = true. After I
submit to the page, the selection in the DropDownList is lost. I set a
break in the Page_Load event to make sure that I wasn't re-binding them
somehow... I'm not. So shouldn't they maintain their selection?
Anything you can think of to check?
Thanks-
Steve
That is really odd, I have 2-3 pages that all have the opposite behavior.
If I have a dropdownlist with 3 items, a, b, and c
Auto postback set to true
if I select 'b', when the page is rendered after the post back, 'a' is
selected.
I don't know what to do differently...
Thanks for the response though, looks like I have gremlins somewhere ;(
"Bruno Sirianni" <br***********@ virgilio.it> wrote in message
news:5B******** *************@n ews3.tin.it... DropDownList must remember their selection!
I have this example and it works fine...
This page when selected value change make a postback.
Selected value in DropDownList never change.
[C# - CodeBehind]
if (!IsPostBack)
{
ArrayList al = new ArrayList();
al.Add("aa");
al.Add("bb");
al.Add("cc");
DropDownList1.D ataSource = al;
DropDownList1.D ataBind();
al.Add("dd");
DropDownList2.D ataSource = al;
DropDownList2.D ataBind();
}
[ASPX page]
<asp:DropDownLi st AutoPostBack="T rue" id="DropDownLis t1"
runat="server"> </asp:DropDownLis t>
<asp:DropDownLi st AutoPostBack="T rue" id="DropDownLis t2"
runat="server"> </asp:DropDownLis t>
Brun
"sklett" <as**@fkd.com > wrote in message
news:%2******** ********@tk2msf tngp13.phx.gbl. .. I have 2 dropdownlist on a page. They have ViewState = true. After I
submit to the page, the selection in the DropDownList is lost. I set a
break in the Page_Load event to make sure that I wasn't re-binding them
somehow... I'm not. So shouldn't they maintain their selection?
Anything you can think of to check?
Thanks-
Steve
That is really odd, I have 2-3 pages that all have the opposite behavior.
If I have a dropdownlist with 3 items, a, b, and c
Auto postback set to true
if I select 'b', when the page is rendered after the post back, 'a' is
selected.
I don't know what to do differently...
Thanks for the response though, looks like I have gremlins somewhere ;(
"Bruno Sirianni" <br***********@ virgilio.it> wrote in message
news:5B******** *************@n ews3.tin.it... DropDownList must remember their selection!
I have this example and it works fine...
This page when selected value change make a postback.
Selected value in DropDownList never change.
[C# - CodeBehind]
if (!IsPostBack)
{
ArrayList al = new ArrayList();
al.Add("aa");
al.Add("bb");
al.Add("cc");
DropDownList1.D ataSource = al;
DropDownList1.D ataBind();
al.Add("dd");
DropDownList2.D ataSource = al;
DropDownList2.D ataBind();
}
[ASPX page]
<asp:DropDownLi st AutoPostBack="T rue" id="DropDownLis t1"
runat="server"> </asp:DropDownLis t>
<asp:DropDownLi st AutoPostBack="T rue" id="DropDownLis t2"
runat="server"> </asp:DropDownLis t>
Brun
"sklett" <as**@fkd.com > wrote in message
news:%2******** ********@tk2msf tngp13.phx.gbl. .. I have 2 dropdownlist on a page. They have ViewState = true. After I
submit to the page, the selection in the DropDownList is lost. I set a
break in the Page_Load event to make sure that I wasn't re-binding them
somehow... I'm not. So shouldn't they maintain their selection?
Anything you can think of to check?
Thanks-
Steve
I got stumped for awhile on a similar situation when
I set the item values to something other than the item text.
So for example if the resulting html looked like this:
<option value="2">Abel</option>
<option value="3">Baker </option>
<option value="2">Charl ie</option>
and I selected 'Charlie', when the form posted back
the first item with the selected value (2 in this case)
would display, so 'Abel' would be displayed.
HTH,
Jim
*** Sent via Developersdex http://www.developersdex.com ***
Don't just participate in USENET...get rewarded for it!
I got stumped for awhile on a similar situation when
I set the item values to something other than the item text.
So for example if the resulting html looked like this:
<option value="2">Abel</option>
<option value="3">Baker </option>
<option value="2">Charl ie</option>
and I selected 'Charlie', when the form posted back
the first item with the selected value (2 in this case)
would display, so 'Abel' would be displayed.
HTH,
Jim
*** Sent via Developersdex http://www.developersdex.com ***
Don't just participate in USENET...get rewarded for it!
Jim,
Yeah, that would be a fun one to find ;)
however, that is not the case for me. I set a breakpoint in the page_load
to check what the dropdown list's selected index was and it was correct IE:
if I had selected the 3rd item before postback, the SelectedIndex value was
2
but once the page is rendered... it's back to selecting the first item.
so strange.
Thanks for sharing your situation though, will come in handy some day!
"Jim Corey" <jc****@nospamc harter.net> wrote in message
news:OL******** ******@TK2MSFTN GP12.phx.gbl... I got stumped for awhile on a similar situation when
I set the item values to something other than the item text.
So for example if the resulting html looked like this:
<option value="2">Abel</option>
<option value="3">Baker </option>
<option value="2">Charl ie</option>
and I selected 'Charlie', when the form posted back
the first item with the selected value (2 in this case)
would display, so 'Abel' would be displayed.
HTH,
Jim
*** Sent via Developersdex http://www.developersdex.com ***
Don't just participate in USENET...get rewarded for it!
Jim,
Yeah, that would be a fun one to find ;)
however, that is not the case for me. I set a breakpoint in the page_load
to check what the dropdown list's selected index was and it was correct IE:
if I had selected the 3rd item before postback, the SelectedIndex value was
2
but once the page is rendered... it's back to selecting the first item.
so strange.
Thanks for sharing your situation though, will come in handy some day!
"Jim Corey" <jc****@nospamc harter.net> wrote in message
news:OL******** ******@TK2MSFTN GP12.phx.gbl... I got stumped for awhile on a similar situation when
I set the item values to something other than the item text.
So for example if the resulting html looked like this:
<option value="2">Abel</option>
<option value="3">Baker </option>
<option value="2">Charl ie</option>
and I selected 'Charlie', when the form posted back
the first item with the selected value (2 in this case)
would display, so 'Abel' would be displayed.
HTH,
Jim
*** Sent via Developersdex http://www.developersdex.com ***
Don't just participate in USENET...get rewarded for it! This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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I have 2 dropdownlist on a page. They have ViewState = true. After I
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break in the Page_Load event to make sure that I wasn't re-binding them
somehow... I'm not. So shouldn't they maintain their selection?
Anything you can think of to check?
Thanks-
Steve
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