AJAX :: ModalPopupExtender Won't Hide After Response.Write With Excel
Aug 18, 2010
I am having a great deal of difficulty getting a ModalPopupExtender to hide after I export a datatable to Excel.
If I simply rem out the Response.write in the code below, everything works correctly, but of course I don't get my excel sheet.
I have tried all kinds of ways to do this. Including calling a javascript function to hide it, wrapping the Panel in an updatePanel and placing the TransactionControl in a asp:PostBackTrigger.
All without affect. Anyone have a clue as to how to do this?
I was also hoping some event would fire after the ModalPopupExtender hides, but of course there is no such luck.
[Code]....
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Jun 24, 2010
I've a gridview which I am rendering to a html text writer and allowing clients to download as an excel spreadsheet using Response.Write. I'm using AJAX in my website now and suddenly it stopped working. This is the code I'm using
public static void Convert(DataSet ds, HttpResponse response)
{
try
{
//1. declare filename to export
string filename = "export";
//2. clear response object
response.Clear();
response.Charset = "";
//3. set response mime type to excel
response.ContentType = "application/vnd.ms-excel";
//4. prompt user to download the file
response.AppendHeader("content-disposition", "attachment; filename=" + filename + ".xls");
//5. create a string writer
StringWriter stringWrite = new StringWriter();
//6. create html writer which uses the string writer
HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);
//7. instantiate a gridview
GridView gv = new GridView();
//8. set gridview datasource to the dataset
gv.DataSource = ds.Tables[0];
//9. bind gridview
gv.DataBind();
//10. tell the gridview to render itself into htmltextwriter
gv.RenderControl(htmlWrite);
//11. output html
response.Write(stringWrite.ToString());
//12. end response
response.End();
}
catch (Exception ex)
{
string str = ex.Message;
}
}
I've found that Response.Write doesn't work with AJAX. Are there any alternatives to this?
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Feb 15, 2011
I need to to export a file to the user. It takes 1-2 min to generate the file so I'd like to have the page go into a kind-of modal mode with a layover on the page and a 'Working' spinner showing. The problem is I can't make the modal stuff go away after Save File dialog is closed.
How can I remove the layover after the dialog is done?
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Feb 14, 2010
Is there a simple way to use Response.Write to adjust column widths when exporting data to MS Excel?
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Mar 15, 2010
in my c# code i have the following;
ModalPopupExtender2.Show();
This works fine my popup appears, so i put an ok button on the Panel and on_click in the code file i tried to;
ModalPopupExtender2.hide();
But it dosent work - nothing happens. I dont have it in an update panel.
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Apr 5, 2010
So I have a master page and a child page with ModalPopUpExtender.
When I click a button on child page, the button will call this "ModalPopUpExtender.Show()", but when I click on the button targeted by the CancelControlID, the ModalPopUpExtender won't hide.
If I create a new project without the master page, the code works fine.
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Feb 14, 2011
I have a panel displayed using modalpopupextender, which contains buttons that i want to hide before results are displayed.
However, using button.visible=false cannot work. I do not know the reason for it. Do anyone know how to hide the buttons in the panel for modalpopupextender?
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Jan 4, 2010
In Firefox (3.5 or 3.0), AJAX toolkit modal popups move just before a redirect.It's as if the positioning css is ignored. The rest of the css appears to be honoured i.e. the popup appearance doesn't change but it jumps to the top left-hand corner.
The test code below reproduces the issue. It only happens in Firefox. I am going to try to work around it by implementing client-side-popup-hiding measures but I would still like to know why it is happening.
[Code]....
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May 1, 2010
In a button click, I need to be able to hide my ModalPanel and then continue running other code server-side. I currently have it this way:
[Code]....
It hides the panel at the of the event handler because that's when the page posts back. So what can I do to hide the panel and then continue running the rest of the server-side code?
Basically what I'm trying to do is the following:
1. Button_display in my webform simply displays my UpdatePanel via ModalPopupExtender.
2. Button_closePanel_Click will hide my UpdatePanel and then run some server-side code, which would display my UpdateProgress control.
protected void Button_closePanel_Click(object sender, EventArgs e)
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Apr 22, 2010
what is difference between Response.write and Response.output.write
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Feb 28, 2011
i am using CollapsiblePanelExtender and button to open pdf document using response.document in same form. CollapsiblePanelExtender works fine before i click button to open pdf document using response.write and once i click on button CollapsiblePanelExtender does not work.
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Feb 11, 2010
I want to bring up an Alert messagebox if a user does not fill in a field on my webform before clicking a submit button on the form. I also want to use an UpdatePanel because it makes it a smoother user experience. But I am experiencing a conflict with
response.write("<script>alert('fill in Comment before submitting');</script>");
and the UpdatePanel. If I remove the Updatepanel then I can use my Alert message above but it loses the page temporarily until the user clicks "OK" on the messagebox. My alternative - using the UpdatePanel - was to add a label to the webform where if a user does not fill in the requested info - a label would display text giving the same message - very smoothly with the UpdatePanel. But the label is not modal like the Alert message.
Is there a way I can use response.write in conjunction with an UpdatePanel? The webform is fairly basic. It has a couple of asp.net textboxes and labels and an asp.net button control. I guess I could use a "required" label, but I like the modal property of the Alert message better.
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Feb 23, 2010
I have populated my data using DataRepeater Control and i have a Delete button on that so each and every row has a delete button which allows user to delete a single entry from DB. I have put this control inside UpdatePanel so i can avoid full page postback.
When i delete the row from the database and try to show a alert message using Repsonse.Write it throws me the below error message
Error: Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled. Details: Error parsing near 'itle||Untitled Page|<script language='ja'. Source File: [URL]
But, If i remove my update panel its coming up well, is there any solution so i can show alert box after a row been deleted ?
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Oct 6, 2010
i am calling a function which is inside Homescroll.ascx.cs from Homescroll.ascx so i wrote on Homescroll.ascx as <% Response.Write(scroll()); %> but all this is in update panel,and i am getting errors. so is their any other way to call function from homescroll.ascx to homescroll.ascx.cs,instead of response.write();
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Apr 14, 2010
I have a DataList that contains some Thumbnail Image(Image Button).
Now I want when i click on any Item in datalist the original image come in modalpopupextender.
How I can do this?
<asp:DataList
ID="dlImgGallery"
runat="server"
RepeatColumns="3"
Width="100%"
onselectedindexchanged="dlImgGallery_SelectedIndexChanged"
DataKeyField="Id"
>
<ItemTemplate> <table
style="width:100%;">
<tr>
<td
></td>
<td
class="style3">
<asp:ImageButton
ID="ImageButton1"
runat="server"
ImageUrl='<%# Eval("Img_URL") %>'
BorderColor="#0098DB"
BorderStyle="Double"
BorderWidth="3px"
onclick="ImageButton1_Click1"
/>
</td>
<td
class="style3">
</td>
</tr>
</table> <br
/>
<cc1:ModalPopupExtender
ID="mpe"
runat="server"
BackgroundCssClass="ModalBackColor"
TargetControlID="ImageButton1"
PopupControlID="Panel8"
CancelControlID="btnCancel"
ondatabinding="mpe_DataBinding">
</cc1:ModalPopupExtender>
</ItemTemplate>
</asp:DataList>and
my panel that shows as modalpopu
<
asp:Panel
ID="Panel8"
runat="server"
onload
="Panel8_Load">
<asp:Button
ID="btnCancel"
runat="server"
Text="Cancel"
/>
<br
/>
<asp:Image
ID="Image1"
runat="server"
Height="102px"
Width="124px"
/>
</asp:Panel>
Now where I can to write code that when i click on item in datalist Original Image show in modal popup extender?
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Jan 24, 2010
I have written simple HttpModule. context.Response.Output.Write is working fine. but not context.Response.Write().
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Apr 7, 2010
I would really appreciate if someone can find out what's wrong with this code.
Here is my question. I have textboxes in a modal popup extender (City, state, zip) and there is an image button search for searching the address from the database. All this functionality is within a control (.ascx file). This control is added to the page where it needs to be displayed and is being displayed when a user click the Address button (the code for it is not shown here). The method ShowAddressSearch() in the control is being called from the page and it displays the popup.
When the user enters any of the 3 values and hits search a server event is fired up and the result should be displayed in a grid. What is happening is, when the user hits the search button the server call is made and the data fetched from the db but the modal popup closes itself here is the code for this. I would really appreciate if someone can find out where and how popup is getting closed.
[Code]....
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Jan 21, 2010
Let me explain better than what the question state. I dynamically generate a KML file from an aspx page and use routing to change the url so I can access myapp.com/mykml.kml and the download starts. I use Response.write() in the aspx page to send the data and it work flawlessly. But there is a zipped version for KML files which is KMZ and I am wondering if I can still use my aspx page to serve a KMZ instead of a KML. Since I do not use a file I cannot "zip" it. Is there a way to zip the stream and output it in the Response.Write()?
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Sep 3, 2010
I have a modal popup extender with one control (ascx) this control has a label that on onclic method call other popup extender.
It's has other ascx, it's has a button for a search. When I do Click in this button in first time, the event click not fired and there are a javascript error that say "this._activeDRagVisual is null reference".
In the other hand, If a use de second popup inside an asp page the event and control work correctly. The problem is with the popup inside popup.
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Sep 13, 2010
how come the following won't write to different lines? It is all in the same sub.
[Code]....
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Oct 13, 2010
I have the following subroutine:
Public Sub StartTimeDif()
Dim dt As DateTime = Convert.ToDateTime(starttimeInput.Text)
Dim dt1 As DateTime = Convert.ToDateTime(endtimeInput.Text)
Dim ts As TimeSpan = dt1.Subtract(dt)
Response.Write(ts.Minutes)
End Sub
and I'm trying to pass (ts.minutes) to durationLabel.
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Oct 25, 2010
In the past I have always worked from the code behind page in ASP.NET and emitting all of my markup from that area.I am now learning MVC and am working in the .ASPX page directly.
<%= Html.Label("Test") %>
<%: Html.Label("Test")%>
<% Html.Label("Test"); %>
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Nov 18, 2010
UPDATE:
The service cannot be activated because it does not support ASP.NET compatibility. ASP.NET compatibility is enabled for this application. Turn off ASP.NET compatibility mode in the web.config or add the AspNetCompatibilityRequirements attribute to the service type with RequirementsMode setting as 'Allowed' or 'Required'.
when i try to access wcf service i get this error: the reason is HttpContext.Current is null, what should i do in this case?
Object reference not set to an instance of an object.
System.Web.Script.Serialization.JavaScriptSerializer s = new System.Web.Script.Serialization.JavaScriptSerializer();
Person p = new Person() { FirstName = "First name", LastName= "last name" };
string json = s.Serialize(p);
System.Web.HttpContext.Current.Response.Write("jsoncallback" + json);} //error
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Feb 23, 2011
I have database code like this
try
{
string strConnectionString = ConfigurationManager.ConnectionStrings["SqlServerCstr"].ConnectionString;
SqlConnection myConnection = new SqlConnection(strConnectionString);
myConnection.Open();
string hesap = Label1.Text;
string musteriadi = DropDownList1.SelectedItem.Value;
string avukat = DropDownList2.SelectedItem.Value;
SqlCommand cmd = new SqlCommand("INSERT INTO AVUKAT VALUES (@MUSTERI, @AVUKAT, @HESAP)", myConnection);
cmd.Parameters.AddWithValue("@HESAP", hesap);.......
It works fine but what I want, in the catch function, is to call the javascript alert function.
I've tried this
Response.Write("<script language=javascript>alert('ERROR');</script>);
But there is an error
How can I show error message in javascript alert function?
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Jan 3, 2011
I am trying to force a download of an XML file when the user visits a page.
This is the code I am using
public partial class GenerateTemplate : LayoutsPageBase
{
protected void Page_Load(object sender, EventArgs e)
{
//.............
//Going about generating my XML
//.............
Response.ClearContent();
Response.AddHeader("content-disposition", "attachment; filename=template.xml");
Response.Write(xmlDoc.InnerXml);
Response.Flush();
Response.Close();
}
}
I am facing a problem that my download window hangs indefinitely, without ever completing the download/Open of the file.
What am I doing wrong? Am I not disposing any objects or closing any connections here?
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