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Hi all
please help me to convert
following code
<br />
<br />
public partial class _Default : System.Web.UI.Page<br />
<br />
, ICallbackEventHandler I face difficulty here <br />
{<br />
<br />
IList<product> list = null;<br />
<br />
protected void Page_Load(object sender, EventArgs e)<br />
{<br />
RegisterClientCallbacks(); <br />
}<br />
<br />
private void RegisterClientCallbacks()<br />
{<br />
string callbackRef = ClientScript.GetCallbackEventReference(this, "arg", "RecieveServerData", "context");<br />
<br />
string script = String.Empty;<br />
<br />
if (!ClientScript.IsClientScriptBlockRegistered("CallServer"))<br />
{<br />
script = "function CallServer(arg,context) { " + callbackRef + "}";<br />
<br />
ClientScript.RegisterClientScriptBlock(this.GetType(), "CallServer", script, true);<br />
}<br />
}<br />
<br />
<br />
<br />
public string GetCallbackResult()<br />
{<br />
return HtmlTableHelper.ConvertProductListToTable(list); <br />
}<br />
<br />
public void RaiseCallbackEvent(string eventArgument)<br />
{<br />
if (String.IsNullOrEmpty(eventArgument)) return;<br />
<br />
list = ProductRepository.GetProducts(eventArgument); <br />
}<br />
<br />
<br />
}<br />
<br />
<br />
<br />
<br />
</product>
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amistry_petlad wrote: Hi all
please help me to convert
Visit Convert C# to VB
please don't forget to vote on the post that helped you.
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Imran Khan Pathan wrote: Visit Convert C# to VB
It's a bad tool. It generates incorrect code most of the time.
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What difficulty?  
Here the class implements ICallbackEventHandler and iherits from Page class !!!
Thanks,
Arindam D Tewary
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amistry_petlad wrote: asp.net c# conversion help in vb.net
Do you want convert this to vb?
EVEN THE WORD IMPOSSIBLE SAYS I M POSSIBLE.
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<br />
Partial Class _Default<br />
Inherits System.Web.UI.Page<br />
Implements ICallbackEventHandler<br />
<br />
Dim lst As IList<br />
<br />
Public Sub RaiseCallbackEvent(ByVal eventArgument As String) Implements ICallbackEventHandler.RaiseCallbackEvent<br />
'Operations<br />
End Sub<br />
End Class<br />
implement all functions in ICallbackEventHandler in same way.
If you are not able to do come back.
EVEN THE WORD IMPOSSIBLE SAYS I M POSSIBLE.
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I have put one textbox and when someone try to type inside the like name it will be fetch from the datbase and listout that names below in the textbox area then he can select and submit that text.
e.g.
example suppose somebody push his first two letter 'am' then the request goes like criteria inside and fetch that name list like amit ,amika,amrita and so on and that person select one name and submit that name.
so for that I have got one application from the code project but i have to need some help for initial part.
so please anybody can help me its urgent
<br />
Imports System.Data<br />
Imports System.Data.SqlClient<br />
Imports System.Configuration<br />
<br />
Partial Class _Default<br />
Inherits System.Web.UI.Page<br />
Implements ICallbackEventHandler<br />
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load<br />
RegisterClientCallbacks() <br />
End Sub<br />
Protected Sub RegisterClientCallbacks()<br />
<br />
Dim callbackRef As String<br />
Dim script As String<br />
callbackRef = ClientScript.GetCallbackEventReference(Me, "arg", "RecieveServerData", "context")<br />
script = String.Empty<br />
<br />
If Not ClientScript.IsClientScriptBlockRegistered("CallServer") Then<br />
<br />
script = "function CallServer(arg,Context) { " + callbackRef + "}"<br />
ClientScript.RegisterClientScriptBlock(Me.GetType(), "CallServer", script, True)<br />
End If<br />
<br />
public string GetCallbackResult()<br />
{<br />
<br />
return HtmlTableHelper.ConvertProductListToTable(list); <br />
}<br />
<br />
public void RaiseCallbackEvent(string eventArgument)<br />
{<br />
if (String.IsNullOrEmpty(eventArgument)) return;<br />
<br />
list = ProductRepository.GetProducts(eventArgument); <br />
}<br />
<br />
End Sub<br /> this codebehind it is in .cs
now moving on .aspx page
<br />
<br />
<body><br />
<form id="form1" runat="server"><br />
Search<br />
<asp:textbox id="txtSearch" name="txtSearch" onkeydown="return GetProducts(event)" runat="server" xmlns:asp="#unknown"></asp:textbox><br />
<asp:button id="Button2" runat="server" text="Button" xmlns:asp="#unknown" /><br />
<br />
</form><br />
</body><br />
<br />
<script language="javascript" type="text/javascript"><br />
<br />
var word = ''; <br />
var UP = 38; <br />
var DOWN = 40; <br />
var ENTER = 13;<br />
var index = -1; <br />
var TAB = 9; <br />
var BACKSPACE = 8; <br />
<br />
var table = null; <br />
var rows = null;<br />
<br />
var selectedRow = null;<br />
<br />
function GetProducts(e) <br />
{<br />
var keynum<br />
var keychar<br />
var numcheck<br />
<br />
if(window.event)
{<br />
keynum = e.keyCode<br />
}<br />
else if(e.which)
{<br />
keynum = e.which<br />
}<br />
keychar = String.fromCharCode(keynum)<br />
numcheck = /\d/<br />
<br />
if(keynum == DOWN) <br />
{ <br />
MoveCursorDown(); <br />
return;<br />
}<br />
<br />
else if(keynum == UP) <br />
{ <br />
MoveCursorUp(); <br />
return; <br />
}<br />
<br />
else if(keynum == ENTER) <br />
{<br />
if(IsFireFox()) <br />
{<br />
document.getElementById("txtSearch").value = selectedRow.childNodes[1].innerHTML;<br />
}<br />
else <br />
{<br />
document.getElementById("txtSearch").value = selectedRow.innerText; <br />
}<br />
document.getElementById("results").innerHTML = '';<br />
return false;<br />
}<br />
<br />
if(keynum != DOWN && keynum != UP && keynum >= 65 && keynum <= 90) <br />
{<br />
word = word + keychar; <br />
}<br />
<br />
else if(keynum == BACKSPACE) <br />
{<br />
<br />
word = word.substring(0,word.length-1); <br />
}<br />
<br />
<br />
CallServer(word,'');<br />
<br />
}<br />
<br />
function IsFireFox() <br />
{<br />
return (navigator.appName == 'Netscape'); <br />
}<br />
<br />
function MoveCursorUp() <br />
{<br />
selectedRow = null; <br />
table = document.getElementById("MyTable");<br />
<br />
if(table == null) return;<br />
<br />
rows = table.getElementsByTagName("TR"); <br />
<br />
if(index > 0) <br />
{<br />
index--; <br />
<br />
SetDefaultRowColor();<br />
selectedRow = rows[index];<br />
selectedRow.className = 'HighlightRow' <br />
} <br />
}<br />
<br />
function MoveCursorDown() <br />
{<br />
selectedRow = null; <br />
table = document.getElementById("MyTable");<br />
<br />
if(table == null) return;<br />
<br />
rows = table.getElementsByTagName("TR");<br />
<br />
if(index < rows.length) <br />
{ <br />
<br />
if(index < rows.length -1)<br />
{ <br />
index++; <br />
SetDefaultRowColor(); <br />
selectedRow = rows[index];<br />
selectedRow.className = 'HighlightRow'; <br />
}<br />
<br />
} <br />
}<br />
<br />
function SetDefaultRowColor() <br />
{<br />
for(i=0;i<rows.length;i++)><br />
{<br />
rows[i].className = 'DefaultRowColor';<br />
} <br />
}<br />
<br />
<br />
function RecieveServerData(response) <br />
{<br />
document.getElementById("results").innerHTML = response; <br />
}<br />
<br />
</script>
thanks
modified on Tuesday, July 8, 2008 2:21 PM
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public Function GetCallbackResult() as String Implements ICallbackEventHandler.GetCallbackResult
return HtmlTableHelper.ConvertProductListToTable(list)
End Function
public sub RaiseCallbackEvent(byval eventArgument as string )Implements ICallbackEventHandler.RaiseCallbackEvent
if String.IsNullOrEmpty(eventArgument)<>True then
list = ProductRepository.GetProducts(eventArgument)
end if
End Sub
EVEN THE WORD IMPOSSIBLE SAYS I M POSSIBLE.
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hi m new to asp.net..
i need the help in textbox propery so that on the click onto the texbox the textbox becomes blank.
pl explain me in detail...
Thanx in advance..
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write a javascript function to clear the textbox,
Attach the javascript function to the onclick event of textbox.
textbox_id.attributes.add("onclick","js_function()")
EVEN THE WORD IMPOSSIBLE SAYS I M POSSIBLE.
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Sherin now it seems you have to write js_function() also !!!
Thanks,
Arindam D Tewary
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Try this,
<asp:textbox runat="SERVER" onClick="this.value='';"/>
The main thing is the inline javascript in the onClick event.
Nirandas,
a developer from India.
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hi ,
i want to know standard sceen rosolution setup how i do that any hint ?
i have designed page using 600 by 800 pixles but when i have tried to access on client web browser using 1024 by 768 pixles it doesnt show full screen rosolution how i solve this. any help or hint .
which one screen rosolution is standard one ?
Regards
Rameez
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in your css
body
{
}
.WorkSpace
{
width:800px;
height: 600px;
}
in your aspx:
< body >
< center >
< div class="WorkSpace" >
< /div >
< /center >
< /body >
see the results
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Hi,
i have three dropdown boxes, in first drop down boxes i have a items of databases name.
i want 2nd drop down box contains list of tables dependent on dropdown box1 of databasename.
please guide me,
DataSet ds = new DataSet();
using (SqlConnection sqlcon = new SqlConnection("Data Source=localhost;Initial Catalog=master;integrated security=true"))
{
sqlcon.Open();
string sQuery = "exec sp_databases";
SqlCommand cmd = new SqlCommand(sQuery, sqlcon);
SqlDataAdapter objSqlDA = new SqlDataAdapter(cmd);
objSqlDA.Fill(ds);
DropDownList1.DataSource = ds;
DropDownList1.DataTextField = "Database_name";
//DropDownList1.DataValueField = "Database_size";
DropDownList1.DataBind();
}
thanks,
Murugavel
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hi murugavel
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
DataSet ds1 = new DataSet();
using (SqlConnection sqlcon = new SqlConnection("Data Source=localhost;Initial Catalog=master;integrated security=true"))
{
sqlcon.Open();
string sQuery = "exec sp_databases1";
SqlCommand cmd = new SqlCommand(sQuery, sqlcon);
SqlDataAdapter objSqlDA = new SqlDataAdapter(cmd);
objSqlDA.Fill(ds1);
DropDownList2.DataSource = ds1;
DropDownList2.DataTextField = "Database_Value1";
DropDownList2.DataValueField = "Database_ID1";
DropDownList2.DataBind();
}
}
protected void DropDownList2_SelectedIndexChanged(object sender, EventArgs e)
{
DataSet ds2 = new DataSet();
using (SqlConnection sqlcon = new SqlConnection("Data Source=localhost;Initial Catalog=master;integrated security=true"))
{
sqlcon.Open();
string sQuery = "exec sp_databases2";
SqlCommand cmd = new SqlCommand(sQuery, sqlcon);
SqlDataAdapter objSqlDA = new SqlDataAdapter(cmd);
objSqlDA.Fill(ds2);
DropDownList3.DataSource = ds2;
DropDownList3.DataTextField = "Database_Value2";
DropDownList3.DataValueField = "Database_ID2";
DropDownList3.DataBind();
}
}
-sathis-
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Hi,
I think u didnt understand my question.
for example.
in dropdownlist1 -- i select the northwinddatabase.
in dropdownlist2 -- list the table names depend on dropdownlist1
in dropdownlist3 -- list the columns contains in the table depend on dropdownlist2
Thanks,
Murugavel
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Murugavel Sadagopan wrote:
Hi,
i have three dropdown boxes, in first drop down boxes i have a items of databases name.
i want 2nd drop down box contains list of tables dependent on dropdown box1 of databasename.
please guide me,
Where you are mentioned following,In the above question
Murugavel Sadagopan wrote: in dropdownlist3 -- list the columns contains in the table depend on dropdownlist2
EVEN THE WORD IMPOSSIBLE SAYS I M POSSIBLE.
modified on Tuesday, July 8, 2008 3:05 AM
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Than you add the SqlParameter[] as addRange to the SqlConnection
Small Example?
SqlParameter[] parms = new SqlParameter[1];
parms[0] = new SqlParameter("@databaseID", dropDownList1.SelectedValue);
ddlDropDownlist2 = MyClass.FillMyDropDownList(ddlDropDownlist2, parms, "ddlText", "ddlID", "ConnectionString", "SqlCommandOrStoredProcedure");
public DropDownList FillMyDropDown(DropDownList ddlName, SqlParameter[] parms, String TextValue, String IDValue, String ConnectionName, String StoredProcedure)
{
SqlCommand cmd = null;
cmd = BaseDatabaseData(StoredProcedure, parms, ConnectionName);
ddlName.DataSource = cmd.ExecuteReader(CommandBehavior.CloseConnection);
ddlName.DataTextField = TextValue;
ddlName.DataValueField = IDValue;
ddlName.DataBind()
cmd.Connection.Close();
return ddlName;
}
private SqlCommand BaseDatabaseData(String StoredProc, SqlParameter[] arrParameters, String ConnectionName)
{
try
{
String connection = System.Configuration.ConfigurationManager.ConnectionStrings[ConnectionName].ConnectionString;
SqlConnection con = new SqlConnection(connection);
SqlCommand cmd = new SqlCommand(StoredProc, con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddRange(arrParameters);
cmd.CommandTimeout = 3600;
cmd.UpdatedRowSource = UpdateRowSource.None;
if (cmd.Connection.State.Equals(ConnectionState.Open))
cmd.Connection.Close();
cmd.Connection.Open();
return cmd;
}
catch (Exception err)
{
throw new Exception(err.Message, err.InnerException);
}
}
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can anyone help me with this...any samples in vb would be great
i have already searched google and had no luck.
thanks
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I am developing a web application using ASP.NET 2.0. I want to view/modify file metadata like Author, Title, Company, etc. that file may be a txt / doc / exe / xml / html / pdf/ doc any format...
File metadata can be viewed / modified using dsofile.dll, but it is applied only on Office documents.
How can I view/modify file metadata that can applied on all files( txt / doc / exe / xml / html / pdf).
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Hi,
I've made a Web Crawler in C#.Net and it crawls a given url in the textbox for all the url's on the page and stores in database.
Then taking one url at a time it again crawls all the urls for email addresses on the contact page of the website.
Now what i want is that when i open my web browser and open google.com search for anything and the results which come out, i mean it gives all the links n urls so i want my tool to work there.
I want my web crawler to work with the google.com results... right now i'm manually providing one url in the textbox for the whole crawling procedures.
I hope i can get good advice and suggestion to solve my problem.
Thanks
Paritosh Tripathi
B.Tech. (C.S.)
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hi,
can't your web crawler start off by accessing the Google page?
send a WebRequest containing Google's URL plus all relevant search parameters, and
capture the response.
If that's OK with you, you don't need a browser at all.
If not, include a WebBrowser object in your app, use it to Google, and take the Document
it produces as the starting point.
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It can start off by accessing the google page but it is manual thing.
everytime i've to put the url in the textbox. i want it to be done with a single click. I mean i want my web crawler to automatically check the google page for the search done by any user.
Hope you are getting me??
I'll explain it again. For example: firstly a user opens a web browser and searches for "new medicine invented" google will search for the given keyword and displays the links n urls now here my crawler should work with a single click it should do all the task..
Now hope you get my view. So please if you have any suggestion regarding this one do reply
Thanks
Paritosh Tripathi
B.Tech. (C.S.)
modified on Tuesday, July 8, 2008 3:55 AM
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