ASP.NET

Re: difference between asp file upload and html file upload

1-Dec-08 13:30

Can any tell me the the difference between asp.net file upload control and html file upload control..?

is there any filesize & file type limitation for both of these? or can we upload any file of any size?

Thanks

Christian Graus1-Dec-08 13:38

Re: difference between asp file upload and html file upload

1-Dec-08 13:38

I guess you don't know what ASP.NET is and does. ASP.NET creates HTML. A HTML upload control is the ONLY way for any file upload to work, it's all a browser supports, without a java plugin or similar.

Christian Graus

Driven to the arms of OSX by Vista.

Aslesh1-Dec-08 13:45

Extending javascript types generated by ASP.NET

1-Dec-08 13:45

About the filesize limitations i find these useful

http://msdn.microsoft.com/en-us/library/aa478971.aspx Smile | :)

bnieland1-Dec-08 11:26

bnieland

1-Dec-08 11:26

Folks,

How can I add functions to a JavaScript type generated by using the
GenerateScriptType in a web service.

Basicly, the C# class has data members that are serialized and passed to the
client to be deserialized javascript objects whoose type bears the same name as
the c# type.

Of course, methods can not be shared.

So let's say I have a c# type

/////////////////////////
// BEGIN FILE: CDog.cs //
/////////////////////////
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace AddJavascriptMethodTest
{
    [Serializable]
    public class CDog
    {
        public CDog()
        {
            this._sColor = "Brown";
        }
        public CDog(string sColor)
        {
            this._sColor = sColor;
        }

        private string _sColor = null;

        public string Color { get { return _sColor; } }
    }
}
/////////////////////////
//   END FILE: CDog.cs //
/////////////////////////

Then I create a web service to return an object of CDog. I also add a GenerateScriptType attribute to generate a javascript type called AddJavascriptMethodTest.CDog

////////////////////////////////
// BEGIN FILE: wsAnimals.asmx //
////////////////////////////////
using System.Web.Services;
using System.Web.Script.Services;

namespace AddJavascriptMethodTest
{
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    [System.Web.Script.Services.ScriptService]
    public class wsAnimals : System.Web.Services.WebService
    {
        [WebMethod]
        [GenerateScriptType(typeof(CDog))]
        public CDog GetDog()
        {
            return new CDog("Red");
        }
    }
}
////////////////////////////////
//   END FILE: wsAnimals.asmx //
////////////////////////////////

Now, the default.aspx looks like this (and this version works fine)...

<!--/////////////////////////////-->
<!-- BEGIN FILE: Default.aspx  //-->
<!--/////////////////////////////-->
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="AddJavascriptMethodTest._Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Add Javascript Method Test</title>
	<script language="javascript" type="text/javascript">
		function getADogFromTheServer()
		{
			AddJavascriptMethodTest.wsAnimals.GetDog(GetDog_Callback_Success, GetDog_Callback_Failure);
		}
		function GetDog_Callback_Success(oDog)
		{
			alert(oDog.Color);
		}
		function GetDog_Callback_Failure(oDog)
		{
			alert("GetDog_Callback_Failure");
		}
		
	</script>    
</head>
<body>
    <form id="form1" runat="server">
	<asp:ScriptManager ID="ScriptManager1" runat="server">
		<Services>
			<asp:ServiceReference Path="~/wsAnimals.asmx" />
		</Services>
	</asp:ScriptManager> 
    <div>
		<input type="button" value="Get a Dog" onclick="getADogFromTheServer();" />
    </div>
    </form>
</body>
</html>
<!--/////////////////////////////-->
<!--   END FILE: Default.aspx  //-->
<!--/////////////////////////////-->

So, okay, you click the button, and the word "Red" is displayed in an alert.

Now, what I want to do instead is add a prototype function called
RenderForDisplay() to the Javascript type AddJavascriptMethodTest.CDog.
CDog.RenderForDisplay() would look somethig like this. It would probably be in a
seperate js file.

AddJavascriptMethodTest.CDog.prototype = { 
	RenderForDisplay: function()
	{
		return "I was given a " + this.Color + " Dog.";
	} 
}

So I can replace GetDog_Callback_Failure(oDog) in the Default.aspx with

function GetDog_Callback_Success(oDog)
{
    alert(oDog.RenderForDisplay());
}

The AddJavascriptMethodTest.CDog type is generated by the wsAnimals.asmx file at
runtime (maybe at compile time, but I don't think so).

Perhaps I could add the RenderForDisplay() function in pageLoad, but that does
not seem the right way to go.

Any Ideas?

Brett Nieland

using a dropdownlist, textbox, and a button to search sql 05 database

brownk12971-Dec-08 9:22

brownk1297

1-Dec-08 9:22

I am trying to use a dropdownlist with a textbox and a "search" button to search a table in sql 05 and display the results in textboxes. This is in c# and asp.net2.0. Any help would be greatly appreciated, thanks in advance

-KB-

Re: using a dropdownlist, textbox, and a button to search sql 05 database

Christian Graus1-Dec-08 9:43

Re: using a dropdownlist, textbox, and a button to search sql 05 database

1-Dec-08 9:43

brownk1297 wrote:
I am trying

Do you mean you wrote actual code for this trivial task, or that you had the idea and hoped someone here would code it for you ? Where are you stuck ?

Christian Graus

Driven to the arms of OSX by Vista.

brownk12971-Dec-08 9:51

brownk1297

1-Dec-08 9:51

I am wanting to write code for this trivial task...i dont want anyone to write the code for me i wold just like a lil assistance in how to have a dropdownlist referencing 3 columns in a sql table and then by the column they choose type in the search criteria in the txtbox and click the button to search. So in the dropdownlist if they choose "Name" and in the textbox they type the name they want to search. I am new at asp.net and c# so i am not sure how to go about this...

Re: using a dropdownlist, textbox, and a button to search sql 05 database

Christian Graus1-Dec-08 10:18

Re: using a dropdownlist, textbox, and a button to search sql 05 database

1-Dec-08 10:18

brownk1297 wrote:
I am new at asp.net and c# so i am not sure how to go about this...

OK - perhaps you should learn some ASP.NET first ? Why do people always seem to be saying 'I am new to programming, and I want to know how to do this complex task' ??

If you have three items in a drop box, then your two options are:

1 - string mash your SQL using the column name
2 - write three bits of SQL ( perhaps stored procs ) and call the right SQL based on which item was selected.

you should read up on SQL injection attacks if you're writing something that will get any real world use, and if you're building SQL in code. But, I assume no-one will ever use this, if you're new to ASP.NET and C#, you're surely not yet writing code people will use, right ?

Christian Graus

Driven to the arms of OSX by Vista.

Paul Conrad1-Dec-08 11:25

Paul Conrad

1-Dec-08 11:25

Christian Graus wrote:
should learn some ASP.NET first ?

I agree. The OP should find a good book on ASP.NET. Not a shortage of them out there.

"The clue train passed his station without stopping." - John Simmons / outlaw programmer

"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon

"Not only do you continue to babble nonsense, you can't even correctly remember the nonsense you babbled just minutes ago." - Rob Graham

How to make DataGrid TemplateColumn ItemTemplate and EditItemTemplate the same without duplicating code?

Cyrilix1-Dec-08 8:39

Cyrilix

1-Dec-08 8:39

Currently, I have something like this:

<asp:DataGrid>
  <asp:TemplateColumn>
    <ItemTemplate>
      //some markup that tells us what controls to draw for ItemTemplate
    </ItemTemplate>
    <EditItemTemplate>
      //same markup as in ItemTemplate which should not be duplicated
    </EditItemTemplate>
  </asp:TemplateColumn>
</asp:DataGrid>

I was wondering if there was a way (either behind the scenes in C#) or in the markup itself, to make it so that we don't have to duplicate the markup. There was a thread I found for the FormView control, where we could set FormView.EditItemTemplate = FormView.ItemTemplate, but unfortunately, this is not available for the DataGrid TemplateColumn type.

Re: How to make DataGrid TemplateColumn ItemTemplate and EditItemTemplate the same without duplicating code?

Samer Aburabie1-Dec-08 10:39

Samer Aburabie

1-Dec-08 10:39

Greetings,
I think the thread you read already gave you the correct way ... its only a matter of casting the template column correctly then set the EditItemTemplate property to ItemTemplate property ... here is the code:

TemplateField colmun = this.GridView1.Columns[0] as TemplateField;
colmun.EditItemTemplate = colmun.ItemTemplate;

Sincerely Samer Abu Rabie

Note: Please remember to rate this post to help others whom reading it.

Re: How to make DataGrid TemplateColumn ItemTemplate and EditItemTemplate the same without duplicating code?

Cyrilix1-Dec-08 11:59

Cyrilix

1-Dec-08 11:59

Ah, I didn't think of that. Thanks.

file upload to FTP ?

Aslesh1-Dec-08 7:37

1-Dec-08 7:37

Hi i am trying to upload a file to a folder in FTP...

i am using asp.net file upload control .. how can i do this ?

Santhapur

Re: file upload to FTP ?

Muhammad Gouda1-Dec-08 8:04

Muhammad Gouda

1-Dec-08 8:04

Search google for: upload files +ASP.NET

foreach(Minute m in MyLife)
myExperience++;

Re: file upload to FTP ?

Aslesh1-Dec-08 8:14

Custom Control property problem

1-Dec-08 8:14

Thanks for your answer..

i have done it prior to posting..

i founded two links donno which one works ? Frown | :(

http://www.codeguru.com/csharp/csharp/cs_internet/desktopapplications/article.php/c13163__2/

http://www.developerfusion.com/code/4340/ftp-client-library-for-c/

Santhapur

Re: file upload to FTP ?

Muhammad Gouda1-Dec-08 8:29

Muhammad Gouda

1-Dec-08 8:29

I can understand that you just want to brows for files and upload the file you select to the server

If this is the situation
All you need is the upload control as you did
Then create a file on the sever and copy the data as stream of bytes from client's file to server's file

foreach(Minute m in MyLife)
myExperience++;

Dirso1-Dec-08 6:48

Dirso

1-Dec-08 6:48

Hi,

I created a webcontrol (Textbox derivated) and I have a property that was suppose to link a Label control to it - when my control gets the focus, I'm gonna change some style from the assigned label.

Here is my code... When I select the Label, my text box disappears and show an error "Error Rendering Control ... Cannot create an object from its string representation"... How can I fix it?

public virtual Label Label
{
    get
    {
        object label = ViewState["Label"];
        if (label == null)
            return null;
        return (Label)Page.FindControl((string)label);
    }
    set
    {
        ViewState["Label"] = value.UniqueID;
    }
}

Thanks,
Dirso

Dirso1-Dec-08 9:21

Dirso

1-Dec-08 9:21

It would be nice when someone marks my question as a "Bad Question" tell me why. It might be the solution to my problem and I would vote for him as a big 5.

Thanks,
Dirso

Christian Graus1-Dec-08 9:45

1-Dec-08 9:45

Why are you storing the label in ViewState ? Why not just create a label and refer to it by name ?

Your core issue imo is that your code requires postback. If you want to change a page when a control gets focus, you definately want to do it on the client, in javascript.

Christian Graus

Driven to the arms of OSX by Vista.

Dirso1-Dec-08 12:53

Dirso

1-Dec-08 12:53

I'm kinda n00bie on server controls development (big surprise hum Smile | :)

)
I created a script (using javascript) that would do the trick of changing colors and styles.
I use this, because I'm creating several forms and in each form there are several textboxes (my textboxes) and so, everytime a textbox gets the focus, the assigned label should have it's style changed too.
Back to the problem, at design time, i want to select in the property window (of each textbox) the label it should change the style from.
I read about TypeConverters, but still not sure how to use it... I'm learning about it now..

Thanks,
Dirso

Christian Graus1-Dec-08 14:18