Last Value Remain After EnableViewState = False
Apr 1, 2010I have set enableViewState to false, why my textbox still remain my last value after i hit the postback button?
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I have set enableViewState to false, why my textbox still remain my last value after i hit the postback button?
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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-
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If we set enable view state = false of a page then can we maintain the view state of that page ?
View 1 RepliesI have made EnableViewState="False" in @page directive. But still all all controls in page maintaing values even after submit.
View 2 RepliesI 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
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.
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.
View 6 RepliesThis 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.
View 8 Replies<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 ?
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 RepliesMy 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.
I have a panel, inside a panel there are some checkbox and radiobuttonlist. This panel is place inside an UpdatePanel ajax.
When I click on a checkbox, it will raise autopostback with ajax supported, then the scrollbar of the panel always move back to the first position. It does not keep the current scrolling position.
How could I remain the scrollbar position?
I already have tried to add:
this.Page.SetFocus("PanelTrips");
this.MaintainScrollPositionOnPostBack = true;
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?
I have a FileUpload control and a DropDownlist control in an UpdatePanel and when user select a file for the FileUpload control (no upload yet), in the meanwhile the user select an option from the DropDownList control which will cause a postback! Once the page postback, the path selected in the FileUpload control will gone. How can i remain the path in the FileUpload control? File uploading function was working. I hope can remain the path in the FileUpload control during postback.
I have tried the solution below but the "FileUpload1.HasFile" will return false to me.
If Session("FileUpload1") Is Nothing AndAlso Upload.HasFile Then
Session("FileUpload1") = Upload
lblPhotoUploadErr.Text = Upload.FileName
ElseIf Session("FileUpload1") IsNot Nothing AndAlso (Not Upload.HasFile) Then
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I have a field that may or may not contain comma.
if the field contain some word and separated by comma
how can i remove specific word in the field.
e.g. the field contain --> 11,12,13
how can i remove the number 12 and remain 11,13 in the field?
In my project I create .aspx pages by using master page. But in menu bar when I click the button that I want to navigate, header and menu bar loaded again. I want that only content of the page will be load. How can I do this?
View 5 Repliesi am using light box in one of my asp.net website On a linkbutton click, an application form opens in a lightbox.this form contains a dropdownlist.till now it was working fine.but now i have to change some coding.Whenever a value is selected from that dropdownlist,its selectedindexchanged is fired.At this moment my form with light box gets disapper.what i want is,it should remain on screen as it is when any of the server side event is fired.
View 2 RepliesI have a basic website with a member login page and an administration backend area. I am using ASP.NET Membership tables for authentication.
When a member logs in they are authenticated and have access to their member profile and other related member areas.
If a user logs in and I detect they are in the ADMINISTRATOR role then a link to access the admin area of the site is available.
When the admin clicks this admin link the site redirects to SSL HTTPS protocal and is suppose to send the admin to the Administrtion area of the site.
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How can I force the user to remain logged in when switching to HTTPS from HTTP?
I have a web app I'm creating and a form that has a formview control on it. The form's default is set to insert and when the user enters data and clicks save, the data gets saved to the database; only problem is that the form then clears all the data out of the controls.
Upon saving after updating or inserting, I'd like to set the form mode to edit and also have it retain the values they input into the form. I've tried a few things and have not had any luck.
e.g.
Code:
Protected Sub frmCustomerInformation_ItemInserted(sender As Object, e As FormViewInsertedEventArgs)
' Make sure record inserted properly.
If e.Exception Is Nothing Then
If e.AffectedRows > 0 Then
litMessage.Text = "Customer Information saved."
'GETTING THE NEW quoteCustomerInformationId FROM THE SAVED RECORD AND PLACING IT INTO A SESSION VAR.
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What mode does the formview control have by default after it executes the ItemInserted method? Also, what is the prper way to do this?
I didnt use bound field here.as it is simple grid view with auto generate columns. I want to make some columns Editable while some should not be editable
<asp:GridView ID="noticeDetails" runat="server" AutoGenerateEditButton="True"
onrowediting="noticeDetails_RowEditing1"
onrowupdated="noticeDetails_RowUpdated1"
onrowupdating="noticeDetails_RowUpdating1"
BorderWidth="1px" Width="100%" CellPadding="10">
</asp:GridView>
I want to create a logout session in asp.net?
How to clear history?
When we click on back button it should stay on same only....
I want to put five buttons: introduction, product, history, feedback, contact. And when I click any one button, that button became dark blue, and others remain, no changes. So I write the following code:
Protected Sub ImageButton1_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles ImageButton1.Click
ImageButton1.ImageUrl = "~/image/CHOICE INTRODUCTION BLUE.jpg"
ImageButton2.ImageUrl = "~/image/CHOICE PRODUCTS.jpg"
ImageButton3.ImageUrl = "~/image/CHOICE HISTORY.jpg"
ImageButton4.ImageUrl = "~/image/CHOICE FEEDBACK.jpg"
ImageButton5.ImageUrl = "~/image/CHOICE CONTACT.jpg"
End Sub
Protected Sub ImageButton2_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles ImageButton2.Click
ImageButton1.ImageUrl = "~/image/CHOICE INTRODUCTION.jpg"
ImageButton2.ImageUrl = "~/image/CHOICE PRODUCTS BLUE.jpg"
ImageButton3.ImageUrl = "~/image/CHOICE HISTORY.jpg"
ImageButton4.ImageUrl = "~/image/CHOICE FEEDBACK.jpg"
ImageButton5.ImageUrl = "~/image/CHOICE CONTACT.jpg"
End Sub
Protected Sub ImageButton3_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles ImageButton3.Click
ImageButton1.ImageUrl = "~/image/CHOICE INTRODUCTION.jpg"
ImageButton2.ImageUrl = "~/image/CHOICE PRODUCTS.jpg"
ImageButton3.ImageUrl = "~/image/CHOICE HISTORY BLUE.jpg"
ImageButton4.ImageUrl = "~/image/CHOICE FEEDBACK.jpg"
ImageButton5.ImageUrl = "~/image/CHOICE CONTACT.jpg"
End Sub
Protected Sub ImageButton4_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles ImageButton4.Click
ImageButton1.ImageUrl = "~/image/CHOICE INTRODUCTION.jpg"
ImageButton2.ImageUrl = "~/image/CHOICE PRODUCTS.jpg"
ImageButton3.ImageUrl = "~/image/CHOICE HISTORY.jpg"
ImageButton4.ImageUrl = "~/image/CHOICE FEEDBACK BLUE.jpg"
ImageButton5.ImageUrl = "~/image/CHOICE CONTACT.jpg"
End Sub
Protected Sub ImageButton5_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles ImageButton5.Click
ImageButton1.ImageUrl = "~/image/CHOICE INTRODUCTION.jpg"
ImageButton2.ImageUrl = "~/image/CHOICE PRODUCTS.jpg"
ImageButton3.ImageUrl = "~/image/CHOICE HISTORY.jpg"
ImageButton4.ImageUrl = "~/image/CHOICE FEEDBACK.jpg"
ImageButton5.ImageUrl = "~/image/CHOICE CONTACT BLUE.jpg"
End Sub
It is workable, however there is only one problem: when i debug it some times it is ok, but some few times the button suddenly became small.
i have searched on google and got an article [URL] keep selected file in fileupload control even after page postback. But it's not working at all. So is there any way through which we can keep selected files in fileupload even after page postback.?
View 1 RepliesI created two stored procedures in SQL Server Management Studio.
First procedure add field in ProjcetsToUsers table (for many-to-many associations)
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I can delete the user from the project and then add another, and the new one is added but removed the remains.
As for data base both this function work correctly.
<PagerStyle HorizontalAlign="Right" CssClass="paging"/>
<PagerTemplate>
<table width="100%">
<tr>
<td style="text-align:left; width:50%">
<asp:LinkButton ID="lnkPrv" Visible="false" CommandName="Page" CommandArgument="Prev" runat="server">Previous</asp:LinkButton>
</td>
<td style="text-align:right; width:50%;padding-left:50%;">
<asp:LinkButton ID="lnkNext" CommandName="Page" CommandArgument="Next" runat="server">Next</asp:LinkButton>
</td>
</tr>
</table>
</PagerTemplate>
Code behind is below
protected void gvProduct_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
Literal1.Visible = gvProduct.PageIndex == 0;
LinkButton lnkPrv = (LinkButton)gvProduct.BottomPagerRow.FindControl("lnkPrv");
LinkButton lnkNext = (LinkButton)gvProduct.BottomPagerRow.FindControl("lnkNext");
lnkPrv.Visible = e.NewPageIndex > 0;
lnkNext.Visible = e.NewPageIndex < gvProduct.PageCount - 1;
gvProduct.PageIndex = e.NewPageIndex;
FillGrid();
}
The code does not give any error. I can see it set the visible property to true/false. But actual control on page remain same (always visible on every page).