I have an button ("export") to export data from grid to excel.
But it's inside an update panel. So I'm registering postback trigger.
What should I assign to PostBackTrigger.ControlId ???
In my UpdatePanel, the user can page, sort and filter a gridview all using AJAX, then they select a row which causes the post to post back and a textbox to be populated with the rows ID.
Problem is, it seems I can't register both an AsyncPostBackTrigger and a PostBackTrigger to the same control - so how would I accomplish this? Here are my triggers so far:
[code]....
What is the different between AsyncPostBackTrigger & PostBackTrigger really?
View 2 Repliesi need to add the PostackTrigger for the ContentPage Button Control. The update Panel in Master PAge
The Button Control in Content Page how to add PostBackTrigger for ContentPage Button Control
I know that UpdateProgress doesn't work with PostBackTrigger, but let me explain what i'm trying:
I'm generating a PDF document (Crystal Report) with ExportToHttpResponse that will be downloaded automaticaly by the browser.
So while the document is been generated, i'd like to show the UpdateProgress just while i'm waiting the doc is being generated, doing the UpdateProgress(or some label) to disappear.
In documentation I have read:
„Use the PostBackTrigger control to enable controls inside an UpdatePanel to cause a postback instead of performing an asynchronous postback."
I made simple application and I do not see difference between using PostBackTrigger and standard postback.
I have three buttons: two inside update panel and one outside update panel. When I click btnUpdateAsync in event handler I set text property of lblUpdatePanel and lblNoUpdatePanel and only lbl that is inside update panel is chaned if web browswer - so this is ok.
Whant I click btnUpdateInUpdatePanelSync all page is refreshed and both lablels are changed in web browser.
When I click btnUpdateOutsideUpdatePanel I see the same behavior.
If I used button that is not associated with PostBackTrigger I would get the same behavior - so what is the purpose of PostBackTrigger?
This is my app:
[Code]....
protected void Page_Load(object sender, EventArgs e)
{
}
protected void LinkButton1_Click(object sender, EventArgs e)
{
}
protected void btnUpdateAsync_Click(object sender, EventArgs e)
{
lblUpdatePanel.Text = "btnUpdateAsync_Click";
lblNoUpdatePanel.Text = "btnUpdateAsync_Click";
}
protected void btnUpdateInUpdatePanelSync_Click(object sender, EventArgs e)
{
lblUpdatePanel.Text = "btnUpdateInUpdatePanelSync_Click";
lblNoUpdatePanel.Text = "btnUpdateInUpdatePanelSync_Click";
}
protected void btnUpdateOutsideUpdatePanel_Click(object sender, EventArgs e)
{
lblUpdatePanel.Text = "btnUpdateInUpdatePanelSync_Click";
lblNoUpdatePanel.Text = "btnUpdateInUpdatePanelSync_Click";
}
On a page for new users to register, I've placed a asp:wizard control in a updatepanel.Everything is working great, but now I want a new user to upload an image. This however requires a full postback.Is there any way to define the finishbutton of the wizard as a postbacktrigger while the next and previousbuttons remain asynchpostbacktriggers?
View 1 RepliesIn updatepanel we can use triggers with two methods AsyncPostBackTrigger and PostBackTrigger so I want to know what is different between these two as well how can we decide we need to go for which one.
View 3 RepliesI have a masterpage and inside that masterage is a user control that has a toolbar with a save button. I then have an aspx page that inherits form t he master page. In that page I have and updatepanel. Is it possible to set the post back trigger to the Save button inside the usercontrol?
View 3 RepliesI have an ASP.NET Webforms site that is regularly having features added.The majority of time a new WebControl is added to the page and I need to increment the TabIndex to all subsequent controls on the page.I'd prefer a more robust solution than choosing an arbitrary gap between the initial assigned tab indexes. Setting the tab indexes using the designer tab order functionality is one option but I'd prefer to stay in the source view.Ideally, if I had, for example, three check boxes I'd like to be able to define the tabindex based off the previous controls tabindex. Then I'd only need to insert the new control and change one existing control.For example, add a new property TabIndexAfterControlId to WebControl:
<asp:CheckBox ID="checkBoxA" runat="server" TabIndex="1"/>
<asp:CheckBox ID="checkBoxB" runat="server" TabIndexAfterControlId="checkBoxA"/>
<asp:CheckBox ID="checkBoxC" runat="server" TabIndexAfterControlId="checkBoxB"/>
is there a way to set datapager controlid to control in other page.
For example: we have 2 pages - page1 with datapager1 and page2 with listview and datapager2. If i put datapager2 in page2 and set pagecontrollid to listview everything is ok. i wonder is there a way to set programatically the same in page1 so we could get te pagecount for other page.
Web Forum is a perfect example - we have posts count, when we click on datapager in topics list, it redirects us on selected page with posts for selected topic (i assume its on other page).
After postback, attributes are cleared.
So how can I send an attribute applied to controlID via JS to the next request page?
I have a problem in collapsiblepanelextender (CPE), prolong i am searching one, ie. i have four collapsiblepanel with four radiobuttons, i select ratiobutton in random if i select one other CPE must be collapse
View 1 RepliesI want to do something like the following in an asp.net web form but get a Invalid Token error message:
<ul>
<%foreach (var item in Items) {%>
<li>
<asp:TextBox ID="<%= item.Id %>" runat="server" />
</li>
<%} %>
</ul>
What alternative methods are there to achieve the desired result?
how am I be able to assign a value to my hidden field control? I have this web service that returns member's ID and name (e.g. 0001-John dela Vega). In order for me to search for a member, I'm using an autocomplete extender, now, if in case that I found the member I'd like to assign its member id to a hidden field. I ask this because I'd like to change the way my web service return data so instead of displaying the member's id and name at the same, I'll just show its member name.
View 1 RepliesI am trying to assign user control from another user control ..first time its binding control successfully but when we refresh the data its giving error
saying "Object reference is not set an instance".
how to refresh data from another user control ...
My senerio below :
1 Aspx page
2. User control
calling usercontrol databinding method from aspx page but once it get refreshed ,not allowed to bind it again..
I am using an AdRotator Control which bind with SQLDatasource and it working fine My query is how to assign a CompanyName which is field in my SQL Table on the Tooltip property of the AdRotator Control.
Below is code i have applied just wanted for tooltip
<asp:Timer ID="Timer1" Interval="3000" runat="server" />
<asp:UpdatePanel id="UpdatePanel1" runat="server">
<contenttemplate>
<asp:AdRotator ID="AdRotator2"
runat="server"
DataSourceID="SqlAdsRightImage"
ImageUrlField="ImageUrl"
NavigateUrlField = "NavigateUrl"
AlternateTextField = "AlternateText"
ToolTip = ? />
</contenttemplate>
<triggers>
<asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick"></asp:AsyncPostBackTrigger>
</triggers>
</asp:UpdatePanel>
<asp:SqlDataSource ID="SqlAdsRightImage" runat="server" ConnectionString="<%$ ConnectionStrings:sportcal2007ConnectionString %>"
SelectCommand="sp_AdsRightImage" SelectCommandType="StoredProcedure">
<SelectParameters>
<asp:Parameter Direction="ReturnValue" Name="RETURN_VALUE" Type="Int32" />
</SelectParameters>
</asp:SqlDataSource>
When i do the following i am getting object ref not set to instance of an object: there is value in string variable would like to assign to a label.
lblFilename.Text = strFilename
I have a simple user control (myControl.ascx) , in the myControl.ascx.cs file, I defined:
public string sUserName
{
get
{
return _sUserName;
}
set
{
_sUserName = value;
populateData();
}
}
In one of my aspx page, I use this control:
[Code]....
myNameSapce.Config.sType is a public value from a class, I just can't get that value for above inline code, is it possible to do that? Otherwise, I need go to the .cs file to do this: myControl1.sUserType = myNameSapce.Config.sType; But still hope I can do the inline code.
I am trying to develop the single page in asp.net web mobile application as code behind c#. I have took the Mobile select list control on page.It has items, 1,2,3,4,5,6,7,8...20. I want it should be assign the selected value of select control to mobile label control situated on page (Mobile Form). As per i know I have to code this on OnSelectIndexChanged Event at code behind. ok? but nothing like this happening. I have written the method (Event) on code behind. I don't want to write javscript or on .aspx code ( not want any client code). I want to conduct functionality on code behind. How should I can achieve this.? As I found Select List control of Mobile toolkit not generates the server side event. What I have to do?
View 1 RepliesI have to assign default value to my asp.net controls which are residing inside the RoleGroup of Asp.net's LoginView control.
Here is a piece of my code-
[Code]....
[Code]....
But I'm getting this error:
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object. Can anyone tell me why I'm getting this error? And what is the right way of accessing those controls from code behind which are placed inside a loginView's RoleGroup?
how can i assign month to a calendar control?
View 3 RepliesI want to set the default value to the FileUploader Control. Unfortunately due to browser security, this is prevented, but some people have done that. I don't know with which way they have achive that. How to set value to a fileuploader control through visual basic 2010 or c#.
View 1 RepliesI have a fileupload control.I'm selecting a image using the control and saving it in the database.In the edit mode,I need to assign the path of the image in the textbox of the file upload control.
View 1 RepliesI have a webusercontrol with a flash control. I want to assign the movieurl from codebehind when the webusercontrol is registered in a new page.
<uc1:PopVideo
ID="PopVideo1"
runat="server"
/>
inside this webusercontrol I have a flash movie player that I can assign the movieurl in codebehind on the webusercontrol. The problem is that I need to assign the value from the new page the control is registered under. How can I access the flash control from the new page and assign the value?
