Web Forms :: Dropdownlist's Enableviewstate Not Working?
Jan 21, 2010
This problem is stopping me from winding up my project.I have a webform where there is a pop-up page that populates one text box and 2 dropdowns.And I also have a checkbox list that does a postback.Whenever the checkboxlist does a postback, one of the dropdownlist's value is reset.It happens with only one dropdown list.The text box and the other dropdownlist retain their value.I have put enableviewstate = true at both the page level and control level.
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Jan 21, 2010
This problem is stopping me from winding up my project. I have a webform where there is a pop-up page that populates one text box and 2 dropdowns. And I also have a checkbox list that does a postback. Whenever the checkboxlist does a postback, one of the dropdownlist's value is reset. It happens with only one dropdown list. The text box and the other dropdownlist retain their value. I have put enableviewstate = true at both the page level and control level.
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Nov 27, 2010
I have made EnableViewState="False" in @page directive. But still all all controls in page maintaing values even after submit.
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Jul 27, 2010
I know how view state works but I do not know how exactly works RegisterRequiresControlState. Where are stored values from control? How exactly does it work?
View 1 Replies
Apr 21, 2014
If we set enable view state = false of a page then can we maintain the view state of that page ?
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Aug 5, 2010
What does EnableViewState on a HyperLink do or mean?
<asp:HyperLink ID="RegisterHyperLink" runat="server" EnableViewState="false">Register</asp:HyperLink>
What does it mean? and what will it do if I set it to true.
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Apr 1, 2010
I have set enableViewState to false, why my textbox still remain my last value after i hit the postback button?
[Code]....
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May 26, 2010
<div runat="server" enableviewstate="false">
<div runat="server" enableviewstate="false"></div>
</div>
What happends if I won't set the enableviewstate property for the second div. Is it inherited from it's parent or not ?
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Sep 19, 2010
I am trying to avoid enabling EnableViewState..Sample code as you can see has 1 repeater and 2 textboxes inside. I bind the textboxes at page init. After a postback I want to get the updated data from the client & save in a db. The Request.Form contains the data keyed with autogenerated client ids but the repeater has 0 items after the postback. So my options seem limited to.a. Enable viewstate so I can pull the data from the repeater using Control.Find(...)b. iterate through Request.Form and find my textbox values...ultimatly the goal is to to render data from a datatable to some textboxes, allow the user to make changes then save these changes. I'd like to avoid viewstate if there is a clean alternative..ASPX:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Foo.aspx.cs" Inherits="Ads_Foo" EnableViewState="false"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-
[code]...
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Apr 27, 2016
When I select the item in 1st dropdownlist, values are fetched from database and want to display in second dropdownlist... but the autopostback is not working for the 1st dropdownlist..
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May 7, 2015
I have two textbox and dropdownlist in vb.net web application.I want to focus cursor on dropdownlist on page load..In pageload I wrote code as
DropDownList1.Focus()
But cursor is not focusing,why?
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May 8, 2010
My dropdown controls do not keep the values after postback even though their EnableViewState is = true and in Page_Load I fill my controls ONLY if not postback.
My controls are inside a panel and the panel's EnableViewState is set to true as well...
To see the page you can log in as test and password is 12345
click on search page and set a value to say Gender and Ethnicity and click submit.
You will see the results, then navigate to number 2 or 3... You will see that it refreshes the controls and sets them to default.
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Jun 3, 2010
I have two drop down lists on my page. One (DropDownList A) has the values preset by me. The other (DropDownList B) has its values filled by a database query if a button is pressed. Each of them have AutoPostBack set to true. Each of them have corresponding onselectedindexchanged functions. DropDownList A works fine. When I change it, I want it to turn itself invisible. It does. DropwDownList B is not working. When I select something, it does the postback but the selected item is reset and the onselectedindexchanged function is never called. I feel like this is a problem I've solved in the past, but it's been 3 years since I programmed ASP.NET. All this is done in C# by the way.
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Apr 24, 2010
Was the new ViewStateMode property introduced to avoid breaking the existing EnableViewState?
Does setting EnableViewState = false at the page level cause the ViewStateMode setting to be ignored?
PS: What is CW in stackoverflow?
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Apr 28, 2010
I have this code:
aspx
[Code]....
aspx.cs
[Code]....
Why can I not view anything in my dropdown list? It is totally blank
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Jan 8, 2011
i am using dropdownlist selectedindexchanged event , it is working with good speed in ie 6 or ie 7. But working slow in ie8.
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Jan 19, 2010
i have two dropdownlist in my webform both are filled dynamically in the page_load event
[Code]....
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Nov 11, 2010
I have the following in a web user control:
asp:DropDownList
ID="ddlPrescriptionCodeGroup"
runat="server"
AppendDataBoundItems="True"
AutoPostBack="True"
DataSourceID="PrescriptionCodeGroupDataSource"
DataTextField="CodeGroupDescription"
DataValueField="PrescriptionCodeGroupID"
onselectedindexchanged="ddlPrescriptionCodeGroup_SelectedIndexChanged">
<asp:ListItem
Text="--Please Select--"
Value="-1"></asp:ListItem>
<
</asp:DropDownList>
<asp:SqlDataSource
ID="PrescriptionCodeGroupDataSource"
runat="server"
ConnectionString="<%$ ConnectionStrings:RadiotherapyConnectionString %>"
SelectCommand="SELECT [PrescriptionCodeGroupID], [CodeGroupDescription] FROM [PrescriptionCodeGroup] WHERE (([Archived]
= @Archived) AND ([OrganisationID] = @OrganisationID))">
<SelectParameters>
<asp:Parameter
DefaultValue="False"
Name="Archived"
Type="Boolean"
/>
<asp:SessionParameter
Name="OrganisationID"
SessionField="OrganisationID"
Type="Int32"
/>
</SelectParameters>
</asp:SqlDataSource>
<asp:DropDownList
ID="ddlPrescriptionCode"
AutoPostBack="True"
runat="server"
AppendDataBoundItems="True"
onselectedindexchanged="ddlPrescriptionCode_SelectedIndexChanged"
DataSourceID="PrescriptionCodeDataSource"
DataTextField="CodeDescription"
DataValueField="PrescriptionCodeID"
>
<asp:ListItem
Text="--Please Select--"
Value="-1"></asp:ListItem>
</asp:DropDownList>
<asp:SqlDataSource
ID="PrescriptionCodeDataSource"
runat="server"
ConnectionString="<%$ ConnectionStrings:SystemConnectionString %>"
SelectCommand="SELECT [PrescriptionCodeID], [CodeDescription] FROM [PrescriptionCode] WHERE (([Archived] = @Archived)
AND ([PrescriptionCodeGroupID] = @PrescriptionCodeGroupID))">
<SelectParameters>
<asp:Parameter
DefaultValue="False"
Name="Archived"
Type="Boolean"
/>
<asp:ControlParameter
ControlID="ddlPrescriptionCodeGroup"
Name="PrescriptionCodeGroupID"
PropertyName="SelectedValue"
Type="Int32"
/>
</SelectParameters>
</asp:SqlDataSource>
When I select from the first dropdown I want to populate the second. However, this is not happening. The postback is happening, but the SelectedIndexChanged handler isn't being called (I have a breakpoint which isn't being hit). The user controls are created dynamically and put into a PlaceHolder which itself is within an AJAX Updatepanel, with ChildrenAsTriggers set to true.
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Mar 16, 2011
I have 2 dropdownlists and on change 1st dropdownlist (ddlPlant), the 2nd dropdownlist (ddlCategoryName) refreshes its data based on 1st dropdownlist value. However, the codes does not worked.
My codes:
[Code]....
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Dec 21, 2010
I have three drop down lists that are all databound to a gridview. When the user selects 1. a school, 2. a house number, and 3. a street from seperate drop down lists, bus stops for that address are displayed in a gridview. Everything works fine. After the user selects a valid school/house number/street combination the gridview automatically displays. I would like to add a "Submit" button and not have the gridview display until this button is clicked.
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May 9, 2010
Stuck trying to populate a dropdownlist with an ObjectDataSource using the wizard.
using the wizard i can successfully configure the datasource, then I can choose the datasource. The next step you should be able to select your display value and the selected value. However, these boxes are not populated within the wizard. I added a gridview to test the datasource and it displays fine.
[Code]....
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Sep 23, 2010
i tried to change an cascading dropdownlist example
http://www.codedigest.com/Articles/jQuery/224_Building_Cascading_DropDownList_in_ASPNet_Using_jQuery_and_JSON.aspx
But i get always the message "Microsoft JScript runtime error: Object expected"
<asp:Content ID="Content1" ContentPlaceHolderID="contentplaceholderHEAD" runat="Server">
</script src="~/_scripts/jQuery-1.4.2.js" type="text/javascript">
<script language="javascript">[code]...
Can't tag all my code as "Sourceode" because its not working corectly..
<asp:Content ID="Content2" ContentPlaceHolderID="maincontent" runat="Server">
<div> [code]...
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Mar 28, 2011
I just installed IE9 on my machine and when I opend my ASP.NET application its DropDownList is not working. When I click on button next to the dropdown list it does not open the selection box.
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Apr 27, 2010
I am using Visual Studio 2008. I have created a login screen and when user enters invalid userid or password, I am displaying error message in label by checking the database.
I am clearing the label, txtUserName and Password on click of Refresh button. But still the label message is appearing because UserName and Password controls are not clearing
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Jan 7, 2011
I have this code frontline (default.aspx)
[Code]....
And then i have a codeBehind i get an Error 1 'SortBy' is not declared. It may be inaccessible due to its protection level. and i cant see why!??My codebehind (default.aspx.vb) is
[Code]....
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