I have to write a mini social networking website, and I seem to have run into a little bump. I want to display a user picture but for some reason it isn't working. The control looks like this
[Code]....
i'm new to c# and i wanted to know how can i allow user to upload a picture from a text box and a button??
after uploading the picture, how can i save the picture in the database??
**note**the picture i allow user to upload need to be in a fixed size.
Currently i'm saving pictures to our sql server db. A user can go to a clients info page and click an id card image to open a new tab or window and see the picture saved for that client.
What I would like to do is when a client info page opens a small version (thumnail) of the picture to display and let the user click the thumbnail to open a bigger icture in a popup window.
I have a couple of questions on exception handling in .net: 1- Why do we have to catch specific exceptions other than the reason of displaying a particular error to the user? What if we wanted to always display a generic error to the user and not give him much details, would it be okay to catch only generic xceptions?
2- Is throwing exceptions from the data access layer to the UI layer best practice, or is it recommended to return a string or perhaps a boolean values from the data access layer to the UI layer?
I am trying to use Windows Authentication in my asp code. I have read / tried all answers on the web but couldnt my page to connect to sql. I m using classic asp.
My conn string looks like :
OCONN.OPEN ("PROVIDER=SQLOLEDB; DATA SOURCE myserver; INITIAL CATALOG=nrth; Integrated Security=SSPI; trusted_Connection=yes")
but I mgetting error
Microsoft OLE DB Provider for SQL Server
Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection.error '80004005'
I need to develop a web applicaiton which will have a user tree like shown in the picture.Generate Labels dynamically with different "CSSCLASS" and design it like that.
Admin,
Coordinator,
TeamLeaders,
Endusers...
How to give such a UI to the user.... There no options required, but it want to show as group and team level.
I had a problem before with GridView displaying picture and it was solve as post [URL] shows. I am trying to apply the same coding to another GridView with a different configuration and I am having a hard time making the adaptation. May someone take a look at it. What I am trying to add to this GridView is code as:
DataImageUrlFormatStringl='<%# IIF(System.IO.File.Exists(Server.MapPath(string.Format("~/UploadedImagesClassifieds/{0}{1}", Eval("AutoNumber"), "Pic1.jpg"))), string.Format("~/UploadedImagesClassifieds/{0}{1}", Eval("AutoNumber"), "Pic1.jpg"), "~/UploadedImagesClassifieds/NoPicture.gif")
%>'
And the GridView code is the following at the present time:
<
asp:GridView
ID="ClassifiedsDisplayGridView"
runat="server"
DataSourceID="srcClassifieds"
AutoGenerateColumns="False"
CellPadding="4"
ForeColor="#333333"
AllowPaging="True"
PageSize="100"
EnableSortingAndPagingCallbacks="true"
>
<Columns>
<asp:ImageField
DataImageUrlField="AutoNumber"
DataImageUrlFormatString="~/UploadedImagesClassifieds/{0}Pic1.jpg"
HeaderText="Picture"
ReadOnly="True"
>
<ControlStyle
Height="50px"
/>
</asp:ImageField>
<asp:BoundField
DataField="Category"
HeaderText="Category"
/>
<asp:HyperLinkField
DataNavigateUrlFields="AutoNumber"
DataNavigateUrlFormatString="~/Classifieds/DetailPage.aspx?AutoNumber={0}&FlagForm=NoSubmitted"
DataTextField="ItemTitle"
HeaderText="Listing
Title" />
<custom:LongTextField
DataField="ListingComment"
Width="400px"
Height="75px"
HeaderText="Listing
Comment" HtmlEncode="false"
/>
<asp:BoundField
DataField="EnterDate"
HeaderText="Listed
on" SortExpression="EnterDate"
/>
<Columns>
<FooterStyle
BackColor="#00693E"
Font-Bold="True"
ForeColor="White"
/>
<RowStyle
BackColor="#FFFBD6"
ForeColor="#333333"
/>
<PagerStyle
BackColor="White"
ForeColor="#333333"
HorizontalAlign="Center"
/>
SelectedRowStyle
BackColor="#FFCC66"
Font-Bold="True"
ForeColor="Navy"
/>
<HeaderStyle
BackColor="#00693E"
Font-Bold="True"
ForeColor="White"
/>
<AlternatingRowStyle
BackColor="White"
/>
<PagerSettings
Mode="NextPreviousFirstLast"
Position="TopAndBottom"
/>
</asp:GridView>
<asp:ObjectDataSource
ID="srcClassifieds"
TypeName="SearchUtility"
SelectMethod="GetClassifiedsSimpleSearch"
runat="server"
OnSelected="srcClassifieds_Selected"
EnableViewState="False">
<SelectParameters>
<asp:QueryStringParameter
Name="Category"
QueryStringField="Category"
Type="String"
/>
<asp:QueryStringParameter
Name="Activity"
QueryStringField="Activity"
Type="String"
/>
<asp:QueryStringParameter
Name="KindOfSearch"
QueryStringField="KindOfSearch"
Type="String"
/>
<asp:CookieParameter
CookieName="Country"
Name="Country"
Type="String"
/>
<asp:CookieParameter
CookieName="CityTown"
Name="CityTown"
Type="String"
/>
<asp:SessionParameter
Name="State"
SessionField="State"
/>
<asp:Parameter
Direction="Output"
Name="SelectRows"
Type="Int64"
/>
</SelectParameters>
</asp:ObjectDataSource>
I am working on web application will run on local network.
I have imagebox in gridview it's supposed got on pictures from outside project folder.
The problem the imagebox cannot display any picture outside project folder.
I wanna display pictuers from network path like:
Server-2Images1.png
Server-3Images1.png
i use visual studio 2010 i have stored image into sql server in binary format and how to retrive that image(which is in binary format) and display in image contro
View 1 Repliesi have a master page in a root and some pages in root and works perfectly, but now i need a different folder (secure) and in this folder i have an Admin page but doesnt show icons from master, only the placeholder. If i change the url from .css (url('images/page-bgglare.png') to (url('../images/page-bgglare.png') works the pages inside the folder but doesnt works the pages in root.
View 4 Replies I have this code to insert a picture from database into an ImageControl on my ASP.NET form:
strConnString = "server=" + Server + ";database=" + DataBase + ";UID=" + UID + ";password=" + PASS + ";";SqlConnection MyConnection = new SqlConnection(strConnString);SqlCommand MyCommand = new SqlCommand("SELECT Pic FROM MEN WHERE ID=5", MyConnection);MyConnection.Open();SqlDataReader MyReader = MyCommand.ExecuteReader();if (MyReader.Read()){ byte[] m_MyImage = (byte[])MyReader["Pic"]; Response.BinaryWrite(m_MyImage);}
And I have this ImageControl on the form:
<asp:Image Width="88" Height="100" Runat="server" ID="m_Image" NAME="m_Image" />
but when I run the code, I see the picture big on the screen and not in my ImageControl.
i also put this in the form_load:
m_Image.ImageUrl = "MyPhoneBook.aspx?m_Image";my control is: m_Imagemy control ID is: m_Imagemy namespace is MyPhoneBook
but still dont work
I do have the following code for for a GridViewd that display pictures that are stored in a file. I am using AutoNumber(GUID) from the database to name the pictures before I stored them to the file. I can save up to 4 pictures using the same AutoNumber but adding these ending to it, Pic1, Pic2, Pic3 ,,,,etc.
The problem that I am having is that after I get the AutoNumber from the database, I want to display a standard picture on the GridView field if there is not particular picture associiated to this record in file. The name of the standard picture is located in the same file under the name of NoPicture.gif. How can I do this? So far this is my GridView code and it is working fine:
<
asp:GridView
ID="PublicClassifiedsSamplesGridView"
runat="server"
AutoGenerateColumns="False"
DataKeyNames="AutoNumber"
DataSourceID="PublicClassifiedsSamplesSqlDataSource"
CellPadding="4"
ForeColor="#333333"
OnDataBound="PublicClassifiedsSamplesGridView_DataBound"
>
<Columns>
<asp:TemplateField
HeaderText="Click for information">
<ItemTemplate>
<asp:ImageButton
ID="ThumbNailImageButton"
runat="server" Width="100px"
PostBackUrl='<%# string.Concat("~/Classifieds/DetailPage.aspx?AutoNumber=",Convert.ToString(Eval("AutoNumber")),"&FlagForm=NoSubmitted")
%>'
ImageUrl='<%# string.Concat("~/UploadedImagesClassifieds/",Convert.ToString(Eval("AutoNumber")),"Pic1.jpg")
%>'
/>
</ItemTemplate>
<ItemStyle
HorizontalAlign="Center"
Width="100px"
/>
</asp:TemplateField>
<custom:LongTextField
DataField="TListingComment"
Width="150px"
Height="70px"
HeaderText="Listing Comment"
HtmlEncode="false"
/>
</Columns>
</asp:GridView>
My slideshow extender work perfectly fine, but I want to retrieve the current display picture's information on the server side.
So I added a normal asp button on the same page as the slideshow extender. When button clicked, it fire off a server side function. In the function I grabbed the SlideShow's name label, description label or the Image, but none of them contain any current information of the picture displayed at slideshow extender.
Is there another way to obtain the slideshow extender current state? Or am are those name, description label text value should be updated?
I use these code for resizing image
behind code
public string img_resize(string picname, int maxHeight, int maxWidth)
{
System.Drawing.Image currentImage = System.Drawing.Image.FromFile(server.mappath("mypics") + picname);
double imgHeight = 0;
double imgWidth = 0;
imgHeight = currentImage.Height;
imgWidth = currentImage.Width;
[code].....
but in this line occur error
<ItemTemplate> <%#img_resize(Eval("my_img"),100, 80)%> </ItemTemplate>
error: Parser Error
Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately. Parser Error Message: The server tag is not well formed.
what should i do ?
I want to crop a picture in a picturebox by allowing the user to selecta rectangular region like you get in software like Photoshop.
Or User Will select a region in pircture box and then region will be saved as a individual picture.
Is it possible using C#.
I obtained the facebook profile details of an user.Now I need to store the profile details including profile picture in my local database.
View 1 RepliesI ve an application dat am working on. The section of the upload picture works perfectly on the development environment and also on a test server but the issue comes up when it was hosted life. I started geting an error dat says picture could not be attached. I ve a folder cald Passport and dis ve been working for me on befor now but i dont now the reason y its not working now.
protected void btnUpload_Click1(object sender, EventArgs e)
{
Boolean fileOK = false;
String fileExtension = string.Empty;
String path = Server.MapPath("~/Passport/");
if (fuPassport.HasFile)
{
fileExtension = System.IO.Path.GetExtension(fuPassport.FileName).ToLower();
String[] allowedExtensions = { ".gif", ".png", ".jpeg", ".jpg" };
if (allowedExtensions.Contains(fileExtension))
{
fileOK = true;
}
}
else
{
Utilities.PortalMessage = "Please attach an image file.";
return;
}
if (fileOK)
{
try
{..............................
i am using visula studio 2005 and sql server 2005 i want to display a image in picture box that is store in database how can i achieve this task ?
View 3 Repliesi m facing a issue in my code i m calling a user control which is in master page, and in row databound i m calling it and it is working fine but on select index change of checkbox it is not working
protected void chkIntClient_SelectedIndexChanged(object sender, EventArgs e)
{
UserControls_AlwaysVisible uc = this.Page.Master.FindControl("Alwaysvisible") as UserControls_AlwaysVisible;
uc.Visible = true;
ArrayList raters = new ArrayList();
CheckBox chkselproducer;
[code]...
I would like users to upload a profile picture when they register, and to then show that picture in a picture box control when they are logged in based on that specific user.
View 1 RepliesI know that in a web site project VWD will cram all the files into 1 specified folder which holds all the peices of your site together in a nice little container.
However, in a web based application (rather than web site) you have a similar folder but it contains a solution file; people often say this has more advantages, but from my early days of learning what would those advantages be?
I've noticed that ASP.NET automatically creates an App_Data folder for you whenever you make a new webforms application.
Since all of my data comes from a SQL Server 2005 database server, is there any reason to actually keep this folder?
Why the website developers use PNG format images in their webpages?
View 2 RepliesIs there any reason to separate front-end FE and back-end BE (for Administration and customer service) in different websites under the same solution.
Actually it causes me problems in Removing items from the cache, (they) decided to put FE and BE in different app domains, this means different Cache objects!!
I asked them about the reason and they said
1- To not be out of memory and to remove BE effect on the FE performance.
I doubt on this, Customer service team are probably affecting the centralized database performance, but there hits will be like adding 10 customers to our website, it is nothing!! Also App domain memory extends when needed, as far as I know, it does not pre allocate resources
2- To avoid losing both FE and BE if the website goes down.
I agree but this is not a reason to put the whole BLL in a web service, what about SECURING the BLL!!!, I PREFER TO LOSE BOTH if the IIS goes down.
I have an accordion and a nested accordion as a menu ba on left. thepanes contain various controls mainly dropdownlists. I disable the accordion after a user has enetered some values and clicked the search button. However in IE7 the accordion is disabld and all the contained controls are too. But in IE6 the dropdownlists aren't disabled whats the reason behind this and whats the solution?
View 6 Replies