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Re: How to use "User Controls" in Web Form?

Sherin Iranimose3-Jul-08 19:24

Sherin Iranimose

3-Jul-08 19:24

Did you add the control to the page by using something like below

<br />
<uc9:controlbookdetail id="ID1" runat="server" properties....="" xmlns:uc9="#unknown" /><br />

nguyenhh wrote:
protected void btnSearch_Click(object sender, EventArgs e)
{
TextBox searchValue = (TextBox)Page.FindControl("searchValue");
Control searchType = Page.FindControl("searchType"); //never find this control
if (searchValue != null)
Response.Write(searchValue.Text);
else Response.Write("Bad request");
}

This is not the way of using it.
You should write some properties to your control, So that you can directly use your control properties. No need to find each control inside it.

EVEN THE WORD IMPOSSIBLE SAYS I M POSSIBLE.

Re: How to use "User Controls" in Web Form?

nguyenhh5-Jul-08 8:12

nguyenhh

5-Jul-08 8:12

Sherin Iranimose,
I am learning .net, could you give me some example code to do this the correct way.
my web form file:

<%@ Import NameSpace="com.nangmoi" %> 
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Web" %>
<%@ Page Language="C#" MasterPageFile="~/MasterPageHome.master" Title="www.nangmoi.com" %>

<%@ Register Assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
    Namespace="System.Web.UI.WebControls" TagPrefix="asp" %>
 <%@ Register src="Control/ControlFormBookSearch.ascx" tagname="ControlFormBookSearch" tagprefix="uc6" %> 
 
<script runat="server">  
    private BookManager objManager = new BookManager();    
    protected void Page_Load(object sender, EventArgs e)
    { 
        if (!IsPostBack){
            
            GridView1.DataSource = objManager.getAuthorByAll();
            GridView1.DataBind();                         
        }
    }
 
    protected void btnSearch_Click(object sender, EventArgs e)
    {
        //TextBox searchValue = (TextBox)Page.FindControl("searchValue");
        TextBox searchValue = (TextBox)ControlFormBookSearch1.FindControl("searchValue");
        
        if (searchValue != null)
            Response.Write(searchValue.Text);
        else Response.Write("Bad request");  
    }
</script>
<uc6:ControlFormBookSearch ID="ControlFormBookSearch1" runat="server" /> &nbsp;

user control page

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="ControlFormBookSearch.ascx.cs" Inherits="Control_ControlFormBookSearch" %>
   
<table style="padding:0; border:solid 0px;">
<tr valign="middle"> 
<td style="vertical-align:top;border-bottom:solid 0px">
Keyword:&nbsp;<asp:TextBox ID="searchValue" runat="server" value="test" />&nbsp;
</td> 
</tr> 
</table>

user control code behind:

using System;
using System.Collections;
using System.Configuration;
using System.Data; 
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts; 

public partial class Control_ControlFormBookSearch : System.Web.UI.UserControl
{ 
    protected void Page_Load(object sender, EventArgs e)
    {
         
    }
    //How do i do this the correct way?? do i create properties like this?
    //then how do i use it from webform?
    public SearchValue{
         get {return searchValue.Text;}
         set (searchValue.Text = value;}
    }
}

Thanks!

Hai

Re: How to use "User Controls" in Web Form?

viivekk3-Jul-08 19:29

viivekk

3-Jul-08 19:29

This is sample userctrl with textbox inside:

<![CDATA[<%@ Control Language="C#" AutoEventWireup="true" CodeFile="usc1.ascx.cs" Inherits="UI_usc1" %>]]>

<asp:panel id="Panel1" runat="server" xmlns:asp="#unknown">
    <asp:textbox id="TextBox1" runat="server"></asp:textbox>    
</asp:panel>

This is aspx page i include the user ctrl in this page, i use findcontrol method of usercontrol object, by using this u can find controls inside the usercontrols.

<![CDATA[<%@ Page Language="C#" %>]]>
<![CDATA[<%@ Register Src="~/UI/usc1.ascx" TagName="Communication" TagPrefix="Samplectrl" %>]]>


<script runat="server">

    protected void btn_Click(object sender, EventArgs e)
    {
        ((TextBox)usrctrl1.FindControl("TextBox1")).Text = "adasd";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <samplectrl:communication id="usrctrl1" runat="server" xmlns:samplectrl="#unknown" />
        <asp:button id="btn" runat="server" text="click find and write" onclick="btn_Click" xmlns:asp="#unknown" />        
    </div>
    </form>
</body>
</html>

Re: How to use "User Controls" in Web Form?

nguyenhh5-Jul-08 8:02

nguyenhh

5-Jul-08 8:02

viivekk,
Thank you for pointing that out, what I was missing is:

instead of using:

TextBox searchValue = (TextBox)Page.FindControl("searchValue");

I should use:

TextBox searchValue = (TextBox)ControlFormBookSearch1.FindControl("searchValue");

as ControlFormBookSearch1 is the control id i used in my code.

Thanks again.

Hai

Sql Injection

ngrj3-Jul-08 16:24

ngrj

3-Jul-08 16:24

Hi

am trying to avoid sql injection.

i want to check only the input provided by the user and not the
viewstate how to avoid checking the view state .

the code i used is below

public static string[] checklist=
{"@@","declare","delete","drop","fetch","fetch_status",
"sys","sysobjects","syscolumns","execute", "update","truncate"};

void app_BeginRequest(object sender, EventArgs e)
{
HttpRequest Request = (sender as HttpApplication).Context.Request;
foreach (string key in Request.QueryString)
CheckInputform(Request.QueryString[key]);
foreach (string key in Request.Form)
CheckInputform(Request.Form[key]);

}

private void CheckInputform(string parameter)
{
for (int i = 0; i<checklist.length;> {
if ((parameter.IndexOf(checklist[i], StringComparison.OrdinalIgnoreCase) >= 0))
{
HttpContext.Current.Response.Redirect("~/Error.aspx");
}
}
}

Any help

ngrj.

Re: Sql Injection

Mark Churchill3-Jul-08 16:52

Mark Churchill

3-Jul-08 16:52

Don't do it that way. Use parameterised queries (text or stored procs), or a decent data layer.

If you try to use a crappy hackish solution based on using a crap data access solution then expect complaints when Mr Joe Sysiman, or fetchdog69@hotmail.com wants to sign up for your services.

Mark Churchill
Director
Dunn & Churchill
Free Download:
Diamond Binding: The simple, powerful, reliable, and effective data layer toolkit for Visual Studio.

Re: Sql Injection

ngrj3-Jul-08 17:06

ngrj

3-Jul-08 17:06

Thanks for the reply Mark

I will use the methods you suggested.

thanks for the example.

ngrj.

Wizard sidebar

kjosh3-Jul-08 13:52

kjosh

3-Jul-08 13:52

Hi,

In the wizard control, how to display the Sidebar horizantally at the top of the wizard. The sidebar displaying the steps in hyperlinks. Can we change those hyperlinks into buttons? And also how to distinguish between active step and other steps in the side bar?

Thanks in advance

how to generate query at runtime ......... help plzz

dream_liner_7e73-Jul-08 10:37

dream_liner_7e7

3-Jul-08 10:37

i have to create a search form which contain a multi select listbox and 3 more drop down, user will select values from these ands hit search button, how i can create query on fly? i have to do concatenation work OR is there any other option that asp.net or vs2005 wizard support to generate query on the fly.

Thanks

Re: how to generate query at runtime ......... help plzz

Christian Graus3-Jul-08 10:58

Christian Graus

3-Jul-08 10:58

dream_liner_7e7 wrote:
asp.net or vs2005 wizard support to generate query on the fly.

ASP.NET should have nothing to do with SQL. Wizards in VS sure don't. Yes, you CAN write code that uses controls that try to magically generate SQL, but situations like this are where they hit their limits, and using them is always a nasty option.

I'd do something like this: say one of your possible things to search for is a name. I'd write a proc that does something like

AND (tb1.Name == @Name OR @Name = '')

In other words, you pass empty strings for things you don't want to look for, and write a proc that deals with them

This was a SQL question, you should ask those in the SQL forum

Christian Graus

Please read this if you don't understand the answer I've given you. If you're still stuck, ask me for more information.

Re: how to generate query at runtime ......... help plzz

dream_liner_7e73-Jul-08 11:18

dream_liner_7e7

3-Jul-08 11:18

i think there is something like query builder which is used in case of runtime scenario ... but i m not sure about that .... if u have any idea plz tell .

Thanks

can't align the asp:listItems to left

gottimukkala3-Jul-08 6:22

gottimukkala

3-Jul-08 6:22

I have an

<asp:checkboxlist xmlns:asp="#unknown"></asp:checkboxlist>

with several asp:listItems and align them to left in the table cell but there is always some gap as you can see in this figure. the text boxes in the above row are correctly aligned.

http://picasaweb.google.com/arunagulla/Devloper/photo#5218822729113407922

can anyone tell me how can i get them correctly aligned to left.

here is my cell with the asp:checkboxlist

<td runat="server" align="left" class="tdContactBoxes">
                <asp:CheckBoxList ID="chkContats" runat="server" TextAlign="Right" OnSelectedIndexChanged="Check" CssClass="chkContats">
                    <asp:ListItem>I am interested in the commercial version of doXtop (Hyper.Net)</asp:ListItem>
                    <asp:ListItem>I am interested in a joint venture or business partership with doXtop</asp:ListItem> 
                    <asp:ListItem>I am interested in advertising on doXtop</asp:ListItem>
                    <asp:ListItem>I am interested in the open API of doXtop for development</asp:ListItem> 
                    <asp:ListItem>I am interested in building my content business to doXtop</asp:ListItem> 
                    <asp:ListItem>I am interested in opening a virtual publisher company on doXtop</asp:ListItem> 
                    <asp:ListItem>I want to publish on doXtop and need help</asp:ListItem> 
                    <asp:ListItem>I have a suggestion for improving doXtop</asp:ListItem> 
                    <asp:ListItem>I have questions on doXtop</asp:ListItem>
                    <asp:ListItem>I want to report an error</asp:ListItem>
                    <asp:ListItem>Other</asp:ListItem>
                </asp:CheckBoxList>                              
            </td>

thanks

Re: can't align the asp:listItems to left

Sherin Iranimose3-Jul-08 6:58

Sherin Iranimose

3-Jul-08 6:58

Try by giving

CellPadding="0" CellSpacing="0"

for the list box.

EVEN THE WORD IMPOSSIBLE SAYS I M POSSIBLE.

How do add controls from 'codebehind' ?

tina->newcoder3-Jul-08 6:11

tina->newcoder

3-Jul-08 6:11

I have a table, i m adding rows in this table through the code-behind (.cs file).
Is there any way to add asp:textbox or asp:Button
in this table through the code-behind ???
The position (row no. in the table) depends on the data present in the xml file...
Smile | :)

Re: How do add controls from 'codebehind' ?

Sherin Iranimose3-Jul-08 6:18

Sherin Iranimose

3-Jul-08 6:18

Try this
1[^]

2[^]

EVEN THE WORD IMPOSSIBLE SAYS I M POSSIBLE.

Re: How do add controls from 'codebehind' ?

tina->newcoder3-Jul-08 6:23

tina->newcoder

3-Jul-08 6:23

thanx Sherin Iranimose
How to add event handlers to these controls >

Re: How do add controls from 'codebehind' ?

Sherin Iranimose3-Jul-08 6:33

Sherin Iranimose

3-Jul-08 6:33

<br />
control_Name.Event_Name += new EventHandler(Function_Name);<br />

<br />
AddHandler control_Name.Event_Name, AddressOf Function_Name<br />

http://support.microsoft.com/kb/317794[^]

EVEN THE WORD IMPOSSIBLE SAYS I M POSSIBLE.

Re: How do add controls from 'codebehind' ?

tina->newcoder3-Jul-08 6:55

tina->newcoder

3-Jul-08 6:55

Sherin Iranimose wrote:
C#

control_Name.Event_Name += new EventHandler(Function_Name);

Thanx

Re: How do add controls from 'codebehind' ?

Christian Graus3-Jul-08 7:34

Christian Graus

3-Jul-08 7:34

But, if your controls are added in page load or later, the event tree won't be built so the events will not fire.

Christian Graus

Please read this if you don't understand the answer I've given you. If you're still stuck, ask me for more information.

Re: How do add controls from 'codebehind' ?

Sherin Iranimose3-Jul-08 20:50

Sherin Iranimose

3-Jul-08 20:50

You are right. Smile | :)

But I have a doubt about 'page load'....

EVEN THE WORD IMPOSSIBLE SAYS I M POSSIBLE.

Re: How do add controls from 'codebehind' ?

tina->newcoder3-Jul-08 23:59

tina->newcoder

3-Jul-08 23:59

Christian Graus wrote:
But, if your controls are added in page load or later, the event tree won't be built so the events will not fire.

Then, whats the solution ?
where else in the code-behind the controls can be added ?

Re: How do add controls from 'codebehind' ?

Sherin Iranimose4-Jul-08 1:04

Sherin Iranimose

4-Jul-08 1:04

Try it by adding on page load.

EVEN THE WORD IMPOSSIBLE SAYS I M POSSIBLE.

LiveLink

kenexcelon3-Jul-08 5:35

kenexcelon

3-Jul-08 5:35

I'm trying to use a set of classes to add a document to LiveLink. I have never done this before and am being unsucessful. Has anyone dealt with this before? I do not have any code yet as I am still trying to figure out how to login a guest account for LiveLink. Or if you may happen to know of a good tutorial on this as I could not find one to suit my needs. All I need to do is a call from an ASP .NEt application to add a document to livelink through a few classes in 3 layers (.dl, .bl, and .dal) and then retrieve some information about the document I just added so I can add a link to the document for retrieval.

Thanks

Re: LiveLink

matthews_3019-Feb-09 9:36

matthews_30

19-Feb-09 9:36

i have a simillar situacion...

i am trying to use a Livelink code to create a document with its categories. I know how to programm ASP & VB .net but i dont know how to reference to the Livelink library (i don´t even know the library name)

so, if you or someone give the name of the Livelink library to reference in VB i can do the rest.

Oscar.

Date Format Problem

lav naphade3-Jul-08 4:54

lav naphade

3-Jul-08 4:54

sir,
Actualy Problem is That when open my project run a form save the entry my form multiple date field his save successfully .when this project compile and run iss through then i will get error .
'date format is not in correct format' ,so i m not getting the actual date format of iss . Please send solution of to solve this problem.

Thanks & Regards
lav

lav naphade

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