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No Problem in this code. May be your Image path is unknown in other system. you can try ~/images/imagename.jpg
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Hello,
Thanks for the reply.
As I wrote in the query, the exported excel file looks for the path from where it was inserted. And when it is downloaded by client, excel fails to find referenced path for the image.
I was thinking about, somehow embed the image itself in the excel so that it refer the image internally.
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I solved the issue by using a template excel document.
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Hi all,
i have used sessions for my login page and now i want to implement remember me on this computer functionality can any body guide me how i able to do that.
when user comes next time username and Password will be saved ? how to achieve this ?
any suggestion .
best Regards
Rameez
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I don't really now ASP.NET, but what about just using a cookie, maybe containing the session id and keeping it when the browser is closed?
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Thanks for reply ,
Actually i have used sessions for login and now i have to implement Remember me Options kindly provide me example related to use of sessions and cookies or any article pointer to this issue .
best regards
Rameez
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This article shows you how to implement the above functionality in ASP.NET.
Step 1: Add a checkbox in the login page
You can add a checkbox in the login page by dragging and dropping a checkbox from the toolbox when you are in page design mode, or you can create a checkbox programmatically in the code behind class.
The following code shows you how to do this in the second way:
private CheckBox _rememberMeCheckBox;
//.....
this._rememberMeCheckBox = new CheckBox();
this._rememberMeCheckBox.Text = "Remember me next time");
this._rememberMeCheckBox.Checked = true;
this.Controls.Add(this._rememberMeCheckBox);
//.....
Setp 2: Creat a cookie when a subscriber login
create a cookie in the Cliked event handler of the login button:
private void _LoginButton_Click(object sender, System.Web.UI.ImageClickEventArgs e)
{
//....
//....
ApplicationUser user = ApplicationUser.RetrieveCurrentUserByLoginId(userId);
if (user != null && user.Password == password)
{
Session["user"] = user;
Response.Cookies.Remove("CookieFromXXX");
if (this._rememberMeCheckBox != null &&
this._rememberMeCheckBox.Checked)
{
HttpCookie cookie = new HttpCookie(string.Format("cookie_from_{0}", this._host));
cookie.Values.Add("userId", user.Id);
cookie.Values.Add("pwd", user.Password);
cookie.Expires = DateTime.Now.AddYears(1);
Response.Cookies.Add(cookie);
}
}
//....
//....
}
Step 3: Override the OnInit method in the base page
If there is a base page which is the parent page of all other pages in your website, you can override the the OnInit method in the base page like the following code:
override protected void OnInit(EventArgs e)
{
//....
//....
if (!IsPostBack && Session["user"] == null)
{
if (Request.Cookies["CookieFromXXX"] != null)
{
HttpCookie cookie = Request.Cookies["CookieFromXXX"];
string userId = cookie.Values["userId"].ToString();
string pwd = cookie.Values["pwd"].ToString();
ApplicationUser user = ApplicationUser.RetrieveCurrentUserByLoginId(userId);
if (user != null user.Password == pwd)
{
Session["user"] = user;
}
}
}
base.OnInit(e);
}
Or you can add the above logic in the OnLoad method in the home page.
Step 4: Use the Session["user"] to determine the subscriber logged in or not
In any web page, you can check the Session["user"] to determine the subscriber logged in or not, see the following code:
if (Session["user"] != null)
{
//logged in already
//....
}
else
{
//haven't logged in yet
//....
}
Step 5: Expire the cookie when subscriber logout the website
Add the following code to expire the cookie when subscribers logout the website.
this.Session.Clear();
if (Response.Cookies["CookieFromXXX{0}"] != null)
{
//Response.Cookies.Remove("CookieFromXXX");
Response.Cookies["CookieFromXXX"].Expires = DateTime.Now.AddDays(-1);
}
Response.Redirect("./homepage.aspx");
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Hey, sumit nice summary....
cheers,
Abhijit
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"Remember me" is implemented by using cookie. When user chooses "Remember me" option, you need to set a cookie with a value which can identify the user. You can set user's id or login id. But make sure the value is encrypted as cookies can be easily changed since it is stored in the client machine. When page loads, check for cookie existance. Read the cookie value and create session for that.
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Of course it can't be impossible, since they've done it. Frown
Here's the problem:
I'm using the AjaxControlToolkit, implementing a tabcontainer with 6 tabs. Each tab corresponds to an .aspx page. I've put an UpdatePanel in each TabPanel surrounding a ContentPlaceHolder (each ContentPlaceHolder being unique, and the corresponding pages referencing their own respective ContentPlaceHolders).
I've gotten around the problem of keeping the selected tab active, but I still have to deal with the flicker and visible postback on each tab (I'm using Response.Redirect()).
I've tried putting the whole tabcontainer in an UpdatePanel, to no avail. I literally have not been to sleep since yesterday and have looked at 100's of tutorials and examples trying to get this to work correctly!
All I want is to be able to switch tabs just as in FF or IE7 without looking like I'm going to a whole new website.
Here's the markup for one of the TabPanels:
<pre>
<cc1:TabPanel ID="tabpanel1" runat="server" HeaderText="Home" Width="900px">
<ContentTemplate>
<asp:UpdatePanel ID="UpdatePanel2" runat="server">
<ContentTemplate>
<table id="Table5" width="900px">
<tr>
<td id="Td13" valign="top">
<asp:TreeView ID="TreeView5" runat="server" DataSourceID="ApplicationSiteMap" ExpandDepth="2"
Width="288px">
</asp:TreeView>
</td>
<td id="Td14">
<div id="Div9">
<asp:SiteMapPath ID="SiteMapPath5" runat="server" SiteMapProvider="DefaultSiteMapProvider">
</asp:SiteMapPath>
</div>
<asp:ContentPlaceHolder ID="DefaultContent" runat="server">
</asp:ContentPlaceHolder>
</td>
<td id="Td15" valign="top">
<div id="Div10">
</div>
</td>
</tr>
</table>
</ContentTemplate>
</asp:UpdatePanel>
</ContentTemplate>
</cc1:TabPanel></pre>
Thanks in advance for any help you can provide!! And if it's something VERY obvious, please don't think you'll offend me by saying so; I'm dumbfounded.
My Music | My Pics | My Articles
BlackDice
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hi,
I stored the values of a class into a httpcontext.current.session("Description"). How can I read this values back from the object.
Thanks.
That is how I assign the value:
HttpContext.Current.Session("Descriptions") = New List(Of Property_Descriptions)
I have defined the following statements to read it back but I am getting invalid cast execption error message
Dim DescList As New List(Of Property_Descriptions)
DescList = HttpContext.Current.Session("Descriptions") 'Error is here
What a curious mind needs to discover knowledge is noting else than a pin-hole.
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DescList = DirectCast(HttpContext.Current.Session("Descriptions"), List(Of Property_Descriptions))
Despite everything, the person most likely to be fooling you next is yourself.
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Thanks for answering. I tried it before but it didn't also work out too.
What a curious mind needs to discover knowledge is noting else than a pin-hole.
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JUNEYT wrote: it didn't also work out too
I suppose that you are trying to say that it didn't work?
Do you get any error message?
Despite everything, the person most likely to be fooling you next is yourself.
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Hi Guffa,
It didn't work. I am getting the following error message
Unable to cast object of type 'System.Collections.Generic.List`1[Property_Descriptions]' to type 'System.Collections.Generic.List`1[Rentgo.Property_Descriptions]
What a curious mind needs to discover knowledge is noting else than a pin-hole.
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You have more than one class named Property_Descriptions. You have to specify exactly in the code which class it is that you mean.
Despite everything, the person most likely to be fooling you next is yourself.
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I need Drop-Down Filter List for a DataGridView Column in webapplication using VB.Net, i need this code very argent, please any olne help me.
Thanks,
Nanthakumar N
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we are not here to do your homework. pls try for it and if you face any problem tell us we will rectify your problems.
SSK.
Anyone who says sunshine brings happiness has never danced in the rain.
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currently i m using asp.net with c# (2.0 framework).
i have placed a .net calendar in a webform and code behind i written the following javascript coding... (in HTML page)
<script runat="server">
public void Page_Load()
{
if (!IsPostBack)
{
Calendar1.SelectedDate = DateTime.Today;
}
}
public void buttonClose_Click(object sender, EventArgs e)
{
string returnScript = "";
returnScript += "<script language=javascript>";
returnScript += "window.opener.document.all['";
returnScript += Request.QueryString["Src"];
returnScript += "'].value = '";
returnScript += Calendar1.SelectedDate.ToString("dd-MMM-yyyy");
returnScript += "';window.close();";
returnScript += "<" + "/" + "script>";
Page.RegisterStartupScript("", returnScript);
}
</script>
I call the above webform in my MASTER page by using the below function in a button click, so that when user clicks this button the calendar will popup and selected date will asign to a textbox
(eg., OnClientClick="pickDate1('txtbox1')")
<script language="javascript" type="text/javascript">
function pickDate(Src)
{
calendar_window=window.open("Calendar1.aspx?src=" + Src, "_blank","height=180, width=200, left=660, top=300,location=no, menubar=no, resizable=yes,scrollbars=no, titlebar=no, toolbar=no", true); calendar_window.focus();
}
</script>
Now here i want to fill another textbox with YEAR ALONE (say, txtbox2) when user select the date for txtbox1 (eg., if user selects the date 01-Oct-2008 for txtbox1, then the year 2008 should be placed in txtbox2).
How to achieve it. help me - KARAN
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hi frnds can any one tell me how can i do this,
because i dont need groove , solid dashed or any other skin provided by asp your own theme and skins
thank you.
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You can create your custome theme in your application, just Right Click on Application - > Add Asp.Net Folder - > Add Theme Folder
now you have to add just a Css and a skin file.
and then aspx page just write inside page directive StyleSheetThme="Your Theme Name"
You can check My Article[^], although the purpose of this article is different but in that application i have used Custom Theme , just dowload the applicatio and try. let me know if any issue.
cheers,
Abhijit
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i am using js function to check gridview value existence it was working fine for single page it doesnt check the whole records it only checks those records which are on current page,
<br />
function checkval()<br />
{<br />
<br />
<br />
var txt=document.getElementById("<%= txt_category.ClientID %>").value;<br />
var theGridView = document.getElementById("<%= gv_faculty_category.ClientID %>");<br />
if(theGridView!=null && txt!="")<br />
{<br />
for ( var rowCount = 1; rowCount < theGridView.rows.length; rowCount++ )<br />
{<br />
alert(theGridView.rows.length);<br />
if ( theGridView.rows(rowCount).cells(0).children(0)!=null)<br />
<br />
{<br />
<br />
<br />
var theGridViewLable = theGridView.rows(rowCount).cells(1).children(0);<br />
if(theGridViewLable.innerHTML==txt)<br />
{<br />
document.getElementById("<%=lbl_proceed.ClientID %>").innerHTML="Category Exists";<br />
<br />
document.getElementById("<%=hf.ClientID %>").setAttribute("value","no");<br />
break;<br />
}<br />
else<br />
{<br />
document.getElementById("<%=lbl_proceed.ClientID %>").innerHTML="Proceed";<br />
document.getElementById("<%=hf.ClientID %>").setAttribute("value", "Proceed");<br />
<br />
}<br />
}<br />
}<br />
}<br />
else<br />
{ <br />
document.getElementById("<%=lbl_proceed.ClientID %>").innerHTML=""; <br />
document.getElementById("<%=hf.ClientID %>").setAttribute("value", "Proceed");<br />
} <br />
} <br />
<br />
can u plz help me
thanks in advance
learning developer
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function popup1(id)
{
var d=id+1;
if(document.getElementById ('TextBox' + d + ').value.length == 0')
{
window.open ('Eventdetails.aspx');
}
else
{
var id1=id;
window.open ('Timeevent.aspx?id='+id1,null,'height=212px,titlebar=no,toolbar=no,width=215px,scroll=no');
return false;
}
}
can any one tell me what is the problem in the above code?
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