AJAX :: Unable To Update Gridview Date From Database In Updatepanel
Jun 21, 2010
My problem is that I have tried to update my gridview which is inside my updatepanel but the data in the gridview does not update or change when I change the data in my database.
I have used the basic method of using timer to change the label like this Label1.Text = DateTime and with trigger <asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick" />. Timer is <asp:Timer ID="Timer1" runat="server" Interval="1000" Enabled="true" OnTick="Timer1_Tick"> .
<Triggers>
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Nov 22, 2015
I have a gridview in which am binding all the values from database and when am editing the gridview by taking a ajax calendar extender in edititemtemplate its giving me this error.
AspCode
<asp:TemplateField ItemStyle-Width="250px" HeaderText="DeliveryDate">
<ItemTemplate>
<asp:Label ID="lblDeliveryDate" runat="server"
Text='<%# Eval("DeliveryDate")%>'></asp:Label>
[Code] .....
C# Code
protected void OrderDetails_RowUpdating(object sender, GridViewUpdateEventArgs e) {
DateTime del = (Convert.ToDateTime((TextBox)(OrderDetails.Rows[e.RowIndex].FindControl("txtDelDate"))));
}
Error : Unable to cast object of type 'System.Web.UI.WebControls.TextBox' to type 'System.IConvertible'.
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Aug 25, 2010
i have a website with three UpdatePanel Control and inside of each UpdatePanels has ONE Gridview and a SqlDataSource Control.
all gridviews are connected to its own SqlDataSource Control. so technically when i run my website all gridviews automatically get their data from their respective SqlDataSource Control and display them accordingly.
but what i need to do is instead of letting all the update panels to load each gridview their data upon Onload event, i need the updatepanel to update on queue, (Technically changing the UpdateMode to Conditional does not solve my problem.) there will be an event which will trigger the updatepanel to update later.
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Apr 29, 2010
I have some issues about retrieveing and storing date information to my database (ms sql server 2005).My data column is a DateTime, and i have set my web.config globalization culture is set to "en-gb"
When i retrieve date from the datebase it appears as dd/MM/yy, that's fine. But i cannot insert a new date as same format?! It will only accept MM/dd/yy or yy/mm/dd.Right now i'm using this code to correct the error:
[Code]....
Is it possible to change the date format on the database or something, so i dont need to use this code?
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Apr 2, 2011
I have an itemtemplate field in a gridview which performs some manual deletions.
I cannot seem to get the code in the rowcommand for this button to update the panel in which the grid resides.
<asp:TemplateField HeaderText="" SortExpression="colFullName">
<ItemTemplate>
<asp:Button ID="btnDelete" runat="server" CommandArgument='<%# Bind("colID") %>' [code]....
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Oct 6, 2010
I'm trying to do a similar thing -- I have a long form and in part of it, I have an updatepanel.
Inside the updatepanel I have:5 dropdowns (using the CascadingDropdown functionality)One AddProduct ButtonGrid or Repeater (haven't set it up yet)
I want the following to happen:I have the AddProduct Button disabled initially, but I want it to be enabled once the 5th dropdown is selected (so OnSelectedIndexChanged).If they click the AddProduct button, I want it to populate a Grid or Repeater.So far I am just trying to show what the selection was in a label... but nothing happens. I have an OnSelectedIndexChanged function for the last dropdown, so it enables the button, but that doesn't appear to get called. Previously, before disabling the button, I tried updating the label on button click -- and nothing there either.
It just seems like, because they are in the updatepanel, those callbacks never happen. I also do have UpdateMode = Conditional and I have both items in the triggers list.
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Jan 17, 2010
I am going to outline my setup then where i am failing
UpdatePanel1 - Contents : 3 textboxes and AddButton
UpdatePanel2 - Contents : 1 GridView and SubmitButton
AddButton adds new row to DataTable with data from textboxes, binds DataTable to GridView SubmitButton sends data to database. The Adding of a row works to add the row to the gridview, but it won't add a second or third and so on, only adds the 1. SubmitButton belives the DataTable that GridView is databound to is null and won't send anything to the database. How can i get the datatable to persist between the two update panels? Do i use Sessions as my storage location? Page
[Code]....
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Oct 14, 2010
i am using a TabContainer and at each TabPanel i have embed an UpdatePanel in order to update each tab alone.
this is my code:
[Code]....
the problem is that it makes several seconds to update each tab (the same time for every tab) and i asume that this is happening because it updates all the TabContainer and not the selected Tab.
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May 7, 2015
If the gridview and print button are inside the update panel,then the print fuction is not calling.
 If i place the print button outside the update panel then it is working fine.
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Oct 6, 2010
Actually I have Multiple update panels on page, which update different values on server but the problem is that I have textbox to which I attach javascript class for datepicker on Load event.
But There are other updatepanels before that date TextBox, when I update them first calender image with date control which is in updatepanel disappears. or it remove the calender which is next to the textbox.
txtDate.Attributes.Add("class", "show-week w16em dateformat-d-sl-m-sl-Y");
Before using any updatepanel its like this
After we upfdate any updatepanel control its like this.
But the Date controls which are not in any updatepanel are ok and working.
And in these updatepanels I actually saving values in DataTables and save these DataTables in viewState .... no change in HTML.
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Jan 20, 2011
I have two updatepanels on my site (upanProfileSearch and upanMemberList). When I hit the button in the upanProfileSearch it should bind the Data Items in the gridview in upanMemberList and here make a RowFilter on the text in upanProfileSearch. When I make a run to curser, I can see, it happens. It makes a RowFilter. but it doesn't update the gridview. Can anyone tell me why it doesn't update? I have UpdateMode="Always" and RenderMode="inline" on both UpdatePanels.
[Code]....
[Code]....
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Sep 17, 2010
I'm trying to use the TextBoxWatermarkExtender with MaskedEditExtender/Validator and have found a bug (I think).
In the textbox I enter an invalid date such as 55-55-5555 and exits the textbox. I would then expect the watermark to be shown, but it doesn't. Instead the prompchar is shown (like __-__-____).
If I simply give focus to the textbox and then another control, the watermark is shown.
Is there a workaround such as manually force the TextBoxWatermarkExtender to update.
I'm not the best with javascript, I tried to call focus() and blur() on the textbox in the textbox's onBlur event using window.setTimeout. This works in Firefox, but not IE8, also there has to be a better way I think :-)
<div>
<asp:TextBox ID="TextBox5" runat="server" MaxLength="1" onBlur=""/>
<asp:ImageButton ID="ImgBntCalc" runat="server" ImageUrl="~/images/Calendar_scheduleHS.png" CausesValidation="False" />
</div>
[Code]....
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Jul 14, 2010
I've exempted the irrelevant bits of code. Essentially, I am trying to change the URL of an image control inside of an update panel inside of a custom user control from a function called inside an update panel from my main page. Using UpdatePanel.Update() isn't working: I end up waiting for the next full page POST to occur before all the updates I make to CustomControl from buttons within the main page's update panel are visible. I verified that Update() was being called via the debugger: there are no issues in that department.
Here, you can see Custom Control and the Button declared. The button is in an update panel to avoid giving a full POST and causing the whole page to reload.
<cust:CustomControl runat="server" ID="CustomControl1">
<asp:UpdatePanel runat="server" ID="UpdatePanel1"> <ContentTemplate>
<asp:Button id="Button1" runat="server" OnClick="DoStuff" />
</ContentTemplate> </asp:UpdatePanel>
This control stores images within their own seperate update panels because rerendering the images is very slow (it requires processing arrays of millions of datapoints) and the user only ever needs to modify one image at a time. I'm using Image1 as an example.
[Code]....
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Dec 9, 2010
I am having a weird issue with the update panels. I have an update panel in UpdateMode = Conditional . I have a dropdown list and a grid view..the gridview has to be updated ÖnSelectionChanged event on the dropdown.
The issue here is on changing the selection on dropdown, the onselectionchanged event is triggered, new data is grabbed, bound to gridview..but does nt update the update panel even after the updatepanel.update();
[Code]....
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Mar 29, 2011
For some reason, I can't get the Gridview in the Updatepanel to refresh after I've made changes. can someone help?
I'm using the ToolkitScriptManager control and the UpdatePanel.
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:GridView blah... [code]....
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Oct 26, 2010
I have a page that displays data depending upon the date range entered by the user into two textboxes. I have added the CalendarExtender control from the Ajax Toolbox to each of these two textboxes, and I would like the associated updatePanel to refresh with new data whenever either of the two dates is changed. Sounds simple enough, but I have not been able to manage it so far.
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Mar 14, 2011
I have taken over development of a asp.net 3.5, c#, MSSQL website, which I did not create.
There is a form on the website which adds all kinds of information into my SQL database. I have added two fields to the database, two corresponding extra form questions and added to the c# code behind so that these new fields are treated in exactly the same way as the existing ones.
I am therefore completely stumped as to why those two fields aren't populated in the database when I submit the form.
No page errors or anything, it's just the fields remain empty when the other pre-existing ones are populated just fine.
Is there something obvious I'm missing - for example is there a setting in the database I'm not enabling to allow the two new fields to be written to by my c# file?
I was not a programmer before this, I'm just picking it all up as I go along.
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Jan 29, 2011
I have an UpdatePanel with a MultiView inside. I am using jQuery to call the server to run some logic and based on it, change the view in the MultiView. The problem is that the updatepanel is not getting refreshed.
My UpdatePanel:
<asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional" ChildrenAsTriggers="false">
This is my call to the server:
[code]....
When the page loads again, the multiview is not showing the assigned view.
I have noticed that the call to the server doesn't set Page.IsPostback = true, it remains false. Perhaps this is somehow related?
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Mar 29, 2010
I am dynamically ading the following to an UpdatePanel
Tab control which has X# of Tabs, each Tab has a various labels and a Rating Control.
When the user hits the Rating contro, the RATING_Changed fires and runs a stored Proc to update the DB. I want the Panel to then display the newest information back from the DB. I can't seem to get the last part to work. I'm still learning .NET so i may have missed somethign easy, but i've tried setting AutoPopstback, using Triggers, etc.
The DB Update does take place but the NEW contents are not displayed
[Code]....
[Code]....
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Apr 18, 2010
I have UpdatePanel with a grdiview inside. I want to take values from the gridview and put them in TextBox out side the UpdatePanel
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Jul 5, 2010
how to update treeview using updatepanel?I am binded my treeview using xml datasource,periodically the datasource was updated,so i am used updatepanel in treeview but, it is not updating while changes came.when i refresh that page ,it is update
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Jan 30, 2011
I am using an updatepanel. Inside this updatepanel I have a LinkButton with the clickevent below.
When clicking this button the Image does not update to a new image. As seen I am assigning the Session variable a new Image path(Session["showThisImage"]) which I am getting in the Page_Load event.
Now I am putting this path in a public variable that is set to the HTML control "Img1" with help of Page.DataBind().
However the Image does not change which is the problem, the image is still there. But other things as labels, links etc do get updated with new data which I haven´t put in this example which means that the updatepanel works except changing the Image here? Also to mention is that if you uncomment: "Response.Redirect("ThisPage.aspx");" the image will change but this will mean a FULL postback which I dont want.
[Code]....
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Mar 20, 2010
ScriptManager exist in MasterPage. I registered trigger by timer.I want to update color of rectangle in Map.aspx. but It is not update. If use Label instead of Image Control, update is done. - structureDefault.aspx have table. table have cell. cell have usercontrol. usercontrol have updatepanel.updatepanel have image control. image control have Draw.aspx in ImageUrl.- Code Sample1. MasterPage behind Code
protected void Page_Load(object sender, EventArgs e) { ToolkitScriptManager1.RegisterAsyncPostBackControl(Timer1); }
protected void Page_Load(object sender, EventArgs e)
[code]...
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Aug 26, 2010
I am also facing problem with Ajax Update panel. I want to refresh only the area placed under update panel. on clicking refresh button is it possible?
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Apr 14, 2010
This sounds weird, but I would like to NOT update a control that's within an update panel. Is this possible? basically the way facebook works, facebook controls are rendered on a "get" command. but I have controls within the same update panel that cause AJAX postbacks. When the postback's happen, I lose my facebook server-side controls. I am wondering if I can "unregister" a control from an update panel? Or do I just have to redesign that page.
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