Web Forms :: Read From And Write To Data Base An Image?
Sep 14, 2010How can I show a saved picturs from data base into a Image control? And how can I save an Image from my web page into data base?
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View 1 RepliesAccess :: Read And Write Image To Database?
Aug 2, 2010i need vb code how to read and write an image to access data base
how to read it from dataTable object and store it in my application as image object
Web Forms :: Base.Render Does Not Write To HtmlTextWriterObject?
Jan 18, 2011I'm trying to setup some simple custom HTTP handlers which will render an aspx page to a string builder and then write the result to the HTTPResponse. My problem is that when I call base.Render(writer), the rendered page isn't written. Here is my code:
FROM THE HTTP HANDLER CLASS
public void ProcessRequest(System.Web.HttpContext ctx)
{
Home h = new Home(); //This is an instance of the ASPX Page I'm trying to render
StringBuilder sb = new StringBuilder();
System.IO.StringWriter sw = new System.IO.StringWriter(sb);
[Code]....
Everything is working as it should, when I debug it executes the proper methods and does not throw errors. I can use hw.Write("STRING") in the HTTP handler to write text to the Response which displays on the screen fine. Also, the aspx page itself renders fine when I don't use a custom handler, so there is no problem there. The base.Render just doesn't seem to want to render the page's contents. I've tried RenderControl as well, and the same thing happens. From Googling around, this should work.
Forms Data Controls :: How To Preview Images From SQL Data Base To Image Control
Dec 8, 2010How to preview images from SQL data base to Image control ?
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Web Forms :: Write Some Html Base On The Input Provided By The User?
Sep 15, 2010i have to inplement a taglib(java) kind of functionality in asp.net application.I need to send parameters from the aspx file eg(<cc:displayhtmld="id1" runat="server" customparam="123"/>) and i need to write some Html base on the input provided by the user can somebody please help as to how i can do this.
View 6 RepliesForms Data Controls :: Read A Data Table And Write In Access DB?
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View 5 RepliesForms Data Controls :: Can Write But Not Read CssClass Of A GridView Cell
Feb 24, 2010I have a GridView where some of the BoundFields have a CssClass applied:
<asp:BoundField ... ItemStyle-CssClass="foobar">
In the rendered HTML it looks like <td class="foobar">
But when I try to read the CssClass programatically in an event like RowCreated or CheckboxChanged or PageLoad it returns nothing:
For Each row As GridViewRow In gv.Rows()
For Each cell As TableCell In row.Cells()
ltlMsg.Text += cell.CssClass
Next
Next
(gv is my GridView and ltlMsg is just a Literal for displaying the results)
If I replace cell.CssClass with cell.Text it does display results, so the code is running.
If I change it to cell.CssClass="test" it does set the class of the <td> elements. It just can't seem to read them.
I must have missed something obvious - I've tried putting it in various different events but nothing seems to work. I assume the CssClass must get set at a later point in the event cycle than I have tried. Can anyone recommend a link to documentation that shows the order in which all the events fire?
Eventually I want to use this to show or hide certain columns in the GridView based on whether a CheckBox (outside the GridView) is checked or not.
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I have an Imagefield control within a Detailsview which is using an .aspx file to render the image through the DataImageUrlFormatString (which is typical). In my select statements I tried changing the binary field containing the image from objectdata to objectdata.PathName() per the Microsoft documentation but this does not work. I get the red X image box.
Web Forms :: Attempted To Read Or Write Protected Memory?
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C# - Converting A Base 64 String To An Image And Saving It?
Mar 23, 2011Here is my code:
protected void SaveMyImage_Click(object sender, EventArgs e)
{
string imageUrl = Hidden1.Value;
string saveLocation = Server.MapPath("~/PictureUploads/whatever2.png") ;
[Code]....
The top imageUrl declartion is taking in a Base64 image string, and I want to convert it into an image. I think my set of code only works for images like "www.mysite.com/test.jpg" not for a Base64 string.
How To Read And Write Text File
Jan 8, 2010I want to read and write a txt file but
The process cannot access the file 'D:BelgelerimVisual Studio 2005WebSitesmacrotechCounter.txt' because it is being used by another process.
what is wrong with this
StreamWriter FileWriter;
StreamReader FileReader;
string Countstr;
string str1;
int Len1,i;
FileReader = File.OpenText(Server.MapPath(Page.ResolveUrl("~/Counter.txt")));
FileReader = File.OpenText(Server.MapPath("~/Counter.txt"));
Countstr = FileReader.ReadLine();
FileReader.Close();
FileReader.Dispose();
i = Convert.ToInt32(Countstr) + 1;
Countstr = Convert.ToString(i);
FileWriter = File.CreateText(Server.MapPath("~/Counter.txt"));
FileWriter.WriteLine(Countstr);
FileWriter.Close();
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View 1 RepliesC# - Read Write Excel File On Server
Sep 23, 2010I would like to know your libraries recommendations to read and write Excel applications on ASP .NET website. I have tried GemBox and NPOI, because they don't required Excel to be installed on the server, but they have some limitations on handling Excel files that are marked to read only.
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View 4 RepliesDataSource Controls :: Read Or Write Array In Sql
Mar 30, 2010i have a db with two simple tables:
tbl_events:
-Event_ID int
-Event_Name varchar
-Event_Organiser varchar tbl_events_organisers
-Organiser_ID int
-Organiser_name varchar
In event_organiser of tbl_events i want to store the organiser_ID's of the second table in an array, so a record in the first table will like something like:
-Event_ID=18
-Event_Name=My event name
-Event_Organiser= 15,31,109,21
How To Read/Write To .txt File In Global.asax
Feb 18, 2011Usually I use this code to read a file from beginning to end into a List<> and then I write to a file with the code I have above.It seems that StreamReader/StreamWriter is not possible to use in Global.asax.I simply might wonder how I can convert this code for Global.asax?
[Code]....
How To Configure IIS Or The Web Server To Allow It To Read And Write Files
Aug 18, 2010I'm trying to add functionality to a simple web service that will allow me to log information to an XML file on the hard drive where the application is located. When I employ the functionality in a Console version of the application, the data gets logged to:binx86Debug MySolution.MyProjectMessageLogTestMessagess.xml. However, when I try to write read from or write to the XML file in the ASP.NET application, I get a System.UnauthorizedAccessException with the message: Accees to the path 'MessageLog' is denied.I would like the log file to appear in the in folder of the application directory, so what settings in IIS or on the server itself would I need to change to allow my application to read from and write to that folder?
View 3 RepliesRead Message From Webpage To Write Into Table?
Jun 28, 2010I am going to create a table with SQL Server, this table only has two columns: MessageName and Message.
One example is like
[Code]....
[Code]....
But I don't want to manually type in the message because of trmendous text; what I want is to read the message from an existing web page which like
[URL]
WCF / ASMX :: Read File System Image And Return Image?
Oct 5, 2010I have a service which reads an image stored in the database. I want to be able to read an image stored on the file system and return that back to the requestor.
View 4 RepliesHow To Implement A Read And Write For An Unknown Amount Of Rows
Jan 18, 2010I asked a question similarly, but the outcome was pretty messy and I was having difficulties populating so I'm trying to go at from a different angle: [URL]
I have a table which stores steps in a process. Some companies only have 6 steps while others have 15, so I created a table with 15 different slots for steps. What I would like to do is set up a control that displays each step in its own row with a label next to it saying "Step '#'", and not in an adjacent column. I'd also like for it to not display any blank rows. If they are entering the step instructions, I would want for them to have to press a button that would add a row so that they aren't just given 15 empty text boxes to fill in.
What would be the best control to do this in, and how would I get started in setting it up?