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hi
I want to delete a file(xml file) on page_unload event
as
protected void Page_Unload(object sender, EventArgs e)
{
File.Delete(MapPath(@"~/App_Data/abc.xml"));
}
but it gives error "Object reference not set to an instance of an object." but it working fine on page_load event please suggest me if i am wrong.
Thanks in advanced
Abbas
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Member 3169981,
When you write MapPath, by default it refers to Page.MapPath method. Now in Page_Unload method, page object can not be accessed, therefore Page.MapPath method throws an exception "object reference..."
Instead use, Server.MapPath to delete any file inside your Page_Unload method. Should be fine.
Thanks,
Arindam D Tewary
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Thanks Arindam, now it's working with Server.MapPath()
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Thanks,
Arindam D Tewary
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I have a requirement to place to pagable grid inside a webform and display that form as a pop up from button click other window.
Pop up window should have to take the employee name search string and it should display all the emp details (Id(hided),Name,Deaprtment,Location)
in the gridview through bounded link and text controls.
upon selection of a perticular employee by clicking on the underlying linkbutton pop has to be closed and both name and departnames has to be passed back to the parent window.
i tried by implementing modelDialog windows method
these are the issues i found
1)I can't passback the Binding values to the javascript function
2)When i clicked on the linkbutton in the gridview a new browser window is opening with the do_postback.......... as its url
3)I have seen any javascript block executing on the page.
could anyone give me an idea about how to go ahead with this?
Thanks in advance for any suggestions.
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Hii,
I am doing a community project.There client asked me to implement "cooliris" for pages.Could you guys can help me ?..any idea ?
With warm regards
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Never heard of it but if you check out Google - the top search comes up with a site selling you a Flash 3d viewing app. Maybe that's what they want you to use - or something like it.
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Hi,
I am using fileupload control in asp.net. am selecting the file using browse button of file upload control. But due to postback event of any other control on the page the content(file path) of the fileupload textbox gets cleared... Viewstate is enabled to this control.
How to solve this problem??? am using vs 2008 and c#...
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I believe that is default behaviour. You can retain the text through doing partial postback using update panel. Do not send upload control while doing the postback and it should retian the value.
50-50-90 rule: Anytime I have a 50-50 chance of getting something right, there's a 90% probability I'll get it wrong...!!
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I tried like this but not working. Just I placed scriptmanager and updatepanel on the page and kept the fileupload control inside updatepanel... Have I followed correctly???
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Wait a minute, were you referring to postback caused by clicking upload button or some other control?
If you mean after clicking on upload button, I guess it is not possible. Also, AFAIK, you cannot set the text of te textbox in the control so you cannot even keep the file path somewhere and just set it.
If you were referring to some other control which is causing postback, then keep just that control in the update panel and not the upload control.
50-50-90 rule: Anytime I have a 50-50 chance of getting something right, there's a 90% probability I'll get it wrong...!!
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Well... Html file control is very restrictive control. You cannot set value of file upload using javascript. You can only set using Browse Button.
Now when the page is posted back, the whole page is sent to the server, server processes it and rewrites the whole page to the response and which is written over the browser(client).
Thus if you select a file and some other button makes the postback, dont hesitate to save the file to the server as, the path, if not saved to the server, cant be shown in the file control at any case.
Otherwise you can show a popup (preferably using window.open) to upload files and do the upload immediately after user selects the file.
![Rose | [Rose]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/rose.gif)
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How to save and assign to the fileupload control? am trying to assign the path like this
FileUpload1.PostedFile.FileName = "Path"; but getting error "Property or indexer 'System.Web.UI.WebControls.FileUpload.FileName' cannot be assigned to -- it is read only.
any idea??
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save path in any string/contol...
for label control...
label.text=File1.PostedFile.FileName;
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but how to assign string value to fileupload control... I tried but got error messages... pls see my previous post...
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You cannot as I told you. Fileupload should be the last thing to do in a page. Or else, have a listbox/listview (in case of multiple file upload) or a label with remove button or something in your page. That should work.
Something like what we get in Gmail or outlook.
50-50-90 rule: Anytime I have a 50-50 chance of getting something right, there's a 90% probability I'll get it wrong...!!
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You cant do that ...
Even ASP.NET cant do this, thus it cant retain its value during postbacks..
Sorry.. You need to store it in server as soon as you find it in server. And then show the message, file uploaded successfully.. .or so... 
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still confusing.. How to store(session or any string variable) and assign to to fileupload control...
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As I already told you, even if you set the value of a FileUpload control, it cant assign the appropriate file pointer to the browser.
So dont try to do this, rather when user choose the file, upload to the server immediately and work from the file placed in the server.
Cheers.
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Hi,
How can we update all resource files contents in asp.net(2.0) pages?
is there any way in asp.net (2.0)?
Waiting for your reply
Known is a drop, unknown is an ocean
modified on Thursday, December 17, 2009 2:31 AM
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Do you really expect a reply after the edit??
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Hi EveryBody,
I got solution for this problem
this is the way
{
XmlDocument obj = new XmlDocument();
XmlNode rootNode;
obj.Load("E:\\Language\\App_LocalResources\\Default.aspx.resx");
rootNode = obj.SelectSingleNode("root");
foreach (XmlNode Node in rootNode)
{
string str = Label1.Text;
string txt = TextBox1.Text;
if ((Node.Name == "data") && Node.Attributes["name"].Value == "Label1Resource1.Text")
{
Node.SelectSingleNode("value").InnerText = txt;
}
}
obj.Save("E:\\Language\\App_LocalResources\\Default.aspx.resx");
}
Known is a drop, unknown is an ocean
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Its Happy to share with all..!
LatestArticle :Log4Net
Why Do Some People Forget To Mark as Answer .If It Helps.
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I m making role based security with forms authentication in that, to make the role authentication work for forms authentication i modify web.config file like this:-
<configuration>
<system.web>
<authentication mode="Forms">
<forms name="MYWEBAPP.ASPXAUTH"
loginUrl="login.aspx"
protection="All"
path="/"/>
</authentication>
<authorization>
<allow users="*"/>
</authorization>
</system.web>
<location path="administrators">
<system.web>
<authorization>
<!-- Order and case are important below -->
<allow roles="Administrator"/>
<deny users="*"/>
</authorization>
</system.web>
</location>
<location path="users">
<system.web>
<authorization>
<!-- Order and case are important below -->
<allow roles="User"/>
<deny users="*"/>
</authorization>
</system.web>
</location>
<configSections>
.
.
.
.
.
.
.
</configuration>
and with this coding i m getting this error:
only one element allowed per config file and if present must be the first child of the root element.
plz help me with this error
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I also faced this problem in the beginning..! this is due to presence of other config section..!
Check your config section there will be 2 config sections after debugging .!
keep one in comments or delete it..!
LatestArticle :Log4Net
Why Do Some People Forget To Mark as Answer .If It Helps.
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