Web Forms :: Reset GridView Display After Postback?
Mar 3, 2011
I have an application where the user scrolls down through a grid and clicks a SELECT button to populate some textboxes based on the content of the grid. On the return from the postback the selected row is out of sight because the grid comes back reset to the top within the scroll window.
Is it possible to have the postback return with the highlighted selected row visible rather than forcing the user to scroll back down to find the selection?
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Mar 26, 2010
I have a DropDownList when selected, brings up Detail Info in GridView1. That GridView has a LinkButton when selected brings up the final Detail Info, in GridView2. need to have the GridView2 clear out and display as when it is "EmptyDataText", when the DropDownList is changed.
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Apr 1, 2010
I have a situation where i want to postback and redirect the user to the diffterent page wherever the user selects something from dropdown list. If the user presses the back button the in the browser the dropdownlist should be in the default state. i have already tried this code
protected void ddl_SelectedIndexChanged(object sender,Eventargs e)
{
int selecteditem = int.Parse(ddl4.SelectedItem.Value.ToString());
ddl.ClearSelection(
ddl.Dispose();
//Even tried ddl.selectedindex = -1 ;
//dosome postback i.e redirecting the user depeneding upon the value in selecteditem
}
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May 19, 2010
I have a panel that users are filling blanks in it.
In this process, several post back will be fired and controls like labels, dropdownlists will change their values, nested panels will change their visible.
Now I wish to know how I can reset these changes when user submit the form.
Like
protected void btnSubmit_Click(object sender, EventArgs e)
{
Panel1.Controls.Reset();
//there is no such a method of Panel
}
As a clarification, I still need to use some of the value in the btnSubmit_Click and display some submit info based on these values. So I *cannot* use Response.Redirect().
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Jul 20, 2010
I have an Usercontrol which has a update panel that being postback by a timer, and it is nested in a parent page which has its own update panel. Every time that the update panel in UserControl cause a postback to server my main page's scrollbar being reset to top or buttom of the page. I enabled viewstate of parent page but nothing, and when enable parent page's MaintainScrollPOsitionOnPOstback it cause a problem for Usercontrol updatepanel postback !
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Feb 25, 2010
I have a kiosk application that uses master pages. There is a refresh meta-tag on the master page (or I can add it programmatically using Page.Header.Controls.add(metaTag), it makes no difference for my problem). When the user does not interact with the aplication it should return to the default page. But when the user does react using async postbacks only a partial postback is performed which does not reset the html meta refresh header, so it just keeps on ticking and after x seconds the page redirects to the default page. How can I avoid this from happening. The meta-tag can not be in the updatepanel so even though I can manipulate it from the code-behind when the async postback happens, any changes I make (for example sometimes when the user makes a mistake he should be redirected to a clean version of the page he is currently on after showing a modal message, so I have to change the url of the meta-tag content to no longer use the default page, but the current page) are not implemented.So the main question is, how can I manipulate (or reset in case of refresh meta tag) meta-tags in an async postback ?
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Mar 11, 2011
I have written a simple jQuery dialog box that will appear in an asp panel if the logged in user has not reset their password in the last 90 days. This is working great, however when the user types in their password and presses submit to insert the new password into the database, the parent page is posting back before the click event is fired on the user control.
Here is how it is set up:
default.aspx
<asp:Panel ID="pnlTest" runat="server" Visible="false">
<div id="dialog" title="Password must be reset">
<cms:ResetPassword runat="server" ID="reset" />
[Code]....
Whenever I click the button to change the password, the default page is calling a postback and it is blanking out the text that was input to change the password, so when the click function gets called the strings come through as "" and it throws an error.
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Sep 6, 2010
I have a couple of fields on a form that will be populated with default values. I would like to put a button that will allow me to reset those fields to their default values if they have been modified. However I would like to avoid the postback so that I don't have data being sent to the database. Is it possible to add a javascript hook such that when that button is pressed I can pull the default values and populate those fields in javascript?
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Feb 19, 2011
I have a Username and Password field on webform and a Submit button.Username ia validated through database on button click.Each time when i click on submit button and if Username already exist then my password gets to be removed due to postback.Please give me some solution so that when i just defocus my username field it will automatically check and display message if it exists.Please donot give Textbox ontextchanged event with update panel in conditional update mode because it will not work for me because i am using devexpress tools on my webforms.
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Jul 28, 2010
I have a masked edit extender extending a text box. I enter the date 01/01/0001 then change a selection on a drop down list inside the same update panel with the autopostback property set to true. The date is changed to 01/01/1910.
[Code]....
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Feb 25, 2012
<asp:GridViewid="gridview"
runat="server" DataSourceID = "SqlDataSource1"
PageSize="30" EmptyDataText = "No Records Found" EmptyDataRowStyle-HorizontalAlign ="Center"
AllowPaging="true"
HorizontalAlign="Center" BorderColor ="Black" Width = "762" Font-Names="Calibri"
[Code] ....
First time on page load
Sorting works fine
But if I done sorting on gridview column then its always the same , How to assign result of SQL query to my result
so that my sort will show result from sql query order not the order of grisview sort ...
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Aug 11, 2010
I have a web form with some labels, textboxes, buttons and a gridview. The gridview has AllowPaging ="true". Girdview displays record numbers (hyperlinked), When I click on a record number in the grid view it populates textbox1. Then I hit the 'Search button to auto populate the form the that record data from the database.
My problem is when I am on say 5th page on my grid view and click a record number to go in textbox1, and then click on the search button to auto populate the form, the gridview goes back to page 1.
How do I make the search button not reset/refresh the gridview?
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Jan 20, 2011
I have webform that is used to search for records and displays them...the form contains a dropdownlist, a textbox, a button, and a gridview...user select an entry from the dropdown, type in a matching value and then click on the button to add the entry into the gridview. All of these seem to be working just fine...however, the issue am having is this...after working with the first entry and users search for the second record, the gridview still maintains the entries from the first search. How do i go about resetting the gridview each time there is a new search? Here is what my code looks like.
[Code]....
[Code]....
[Code]....
How do I get the gridview to reset the next time the btnSearch button is clicked?
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Feb 23, 2012
I have a gridview and I used sqldatasource to bind data with gridview
Sorting is working correctly
But on first button click event If i sort column Name by desc
and on second button click event the sort order for column name id desc only
How to reset column sort as per sql query on every button click event ?
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Sep 12, 2010
Right now I have a gridview with databind. My menu item consist of the 7 days of the week. Everything works fine except for one thing, the page index. Right now by default it loads the results for Monday. If I click on Pg 2 for Monday, and then I click on Tuesday, the page number stays at page 2 and the data remains the same. I have to click on Pg 1 or Pg 3 before the data would refresh and change the result to Tuesday's data.
I've tried adding databind() to the MenuClick event but if Monday has 3 pages, and they click on Tuesday which only has 2 pages, it would give me an error. Also the adding of the Databind() still doesn't fix the page index when I click on a different day.
How do I reset the page index when the user clicks on the day.
[Code]....
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Sep 23, 2010
Just spent about 8 hours googling and looking through this forum for a solution on how to make sure that I can dynamically sort. Here is the situation.
I have 1 Gridview that displays 10 different scenarios based on what button is clicked.
I am also returning only top 10 records. I am doing all of the data binding pragmatically. So I have BoundFields, HyperLinkFields etc.
I also want to sort some records. When I change DataSource SQL statement the gridview somehow remembers what the last sort value was and it errors out saying that value "x" cannot be sorted because it does not exists.
I tried this:
Tried setting gridview1.sqldatasourceid = null; gridview1.allowsorting = false; gridview1.databind();
Here I get an error that says that the data source does not support sorting? Doesnt it say gridview1.allowsorting = false;
I also tried gridview1.sort("", SortDirection.Ascending); This does nothin... except query my database one more time because i have a onSorting event that looks like this:
[Code]....
Here is an example of just one of those SLQ statements inside GetSQLQuery:
[Code]....
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Jan 3, 2011
i want to see the sales in the grid view based on the month selected from drop down list. Ex: when I select June 2010 from the ddl box, the sales for that month are correctly displayed in the grid view. I go to page 4 to look at some sales there and then switch the month to August 2010 to see sales for that month instead. Here is the problem. When I switch the month, it show August 2010 sales, but stays in page 4 instead of going back/resetting back to page 1 of August 2010 sales.
How do I reset the grid view page back to the first page of August 2010 sales?
I am fairly new to ASP. If I have missed an imp. detail in this post, let me know and I will get that info. out there.
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Mar 9, 2013
<asp:DropDownList ID="ddlday" Width="100px" runat="server" CssClass="iselect" Autopostback="True"
AppendDataBoundItems ="true">
<asp:ListItem Text="--Select--" Value="0" />
<asp:ListItem Text="Full" Value="1" Selected="True" />
<asp:ListItem Text="Half" Value="2" />
</asp:DropDownList>
I have a dropdown in gridview. I bind the gridview after not ispostback condition. Now if i select drodown lsit value "Full" from the first row of gridview i need all other rows of dropdown in gridview to be selected "full" programtically and after that if the user wants to change other row dropdown to "half" then he can change it.
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Nov 9, 2010
how to deal with update buttons once you click on update..I do have some buttons like update, hold, release etc...Once I click on these the database will be updated and the immeadiate changes are not reflect until unless i hit the refresh...I know..I need to rebind everthing or need to make a fresh page_load()...But I am calling around 10 Stored procs on each postback...Is there any way to avoid these many calls to database...I am using the updatepanels..so user not aware of postback...he doesn't get any response from UI about the changes...
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Aug 12, 2012
I have to use progress bar when page postback. in my application report section is there. it's taking some time to generate the report. so i want to show some progress bar.
When page load progress bar should show. and when page load finish the progress bar should hide.
I googled many thing mostly they are using thread.sleep method but i don't want that.
The progress bar should fully depend on page loads.
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Jul 24, 2010
Anyone with similar conclusion? GridView does not databind/refresh upon postback unless the postback is called by itself?
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Sep 7, 2010
i have a gridview binded with data when i hover mouse to row i want to display a image button to display date ,and when i click the button i want to display calender control for choose date, and next step after i choose date it will be must insert into database. and mean while a hidden label control will display and date shuld be display in it
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Jan 10, 2011
I'm trying to extend the GridView control to enable sorting and paging for any situation.
When using my control I am fetching data from a database and filling a DataSet with it, then binding the GridView upon every page load. My first question would be, is this the correct approach?
To sort the GridView I am overriding the OnSorting method which stores the sort expression and direction in the ViewState, then creates a DataView and utalises the Sort method to sort the underlying data. It then sets the Data Source to this DataView and rebinds the GridView.
Paging is handled by OnPageIndexChanging which simply sets the PageIndex property and again rebinds the GridView.
My problem is; when any control causes a postback my GridView is no longer sorted, presumably because it is persistently rebound. If I don't rebind it then the GridView is empty on postback since the data isn't automatically stored in the ViewState. I have considered saving the data source in the ViewState but I would assume that this is bad practice for large amounts of data? - also DataViews are not seralisable.
The only solution I can think of currently is to override OnDataBound and sort the data every time. This results in a double sort when paging triggers a postback which seems inefficient. Code illustration of this below,
[Code]....
I'm looking for the cleanest 'best practice' solution as this is a learning exercise more than anything else.
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Aug 16, 2010
I have an ASP.NET button. When the button is clicked, I'd like a modal popup to display after the server-side code for the button runs. I don't want to use the ASP.NET Ajax control toolkit modal popup extender.
With ASP.NET Ajax, I can hook into the end request event. Is there a way to do this without ASP.NET Ajax. just jQuery? I basically want to run some javascript after the server side click code runs, after the postback.
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Jan 17, 2010
onPageLoad event , i have Make MyPanel.Visible=false;
when some buttons Clicked the UpdatePanle is Updated and then Mypanel.Visible=true;
but the MyPanel still not visible , what i can do to make it visible?
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