How to dynamically add a table row with input fields in .NET.
June 27th, 2007
C# using Visual Studio 2005…
using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; public partial class _Default : System.Web.UI.Page { // How many rows when the page initially loads. static int tDefaultRow_Count = 10; // Max number of rows. static int tMaxRows = 50; // Do not modify the following. private int tUserAddedRowCount = 0; static TextBox[] TextBox_Item = new TextBox[tMaxRows]; static TextBox[] TextBox_Desc = new TextBox[tMaxRows]; static TextBox[] TextBox_Quantity = new TextBox[tMaxRows]; static TextBox[] TextBox_Price = new TextBox[tMaxRows]; static TextBox[] TextBox_Total = new TextBox[tMaxRows]; protected void Page_Load(object sender, EventArgs e) { tUserAddedRowCount = (ViewState["tUserAddedRowCount"] != null) ? int.Parse(ViewState["tUserAddedRowCount"].ToString()) : 0; //Response.Write("User Rows: " + tUserAddedRowCount + "\r\n"); // Recreate the extra rows created by the user on postback // events (required to maintain state). Add_Table_Rows(tUserAddedRowCount + tDefaultRow_Count); } protected void Button1_Click(object sender, EventArgs e) { // User clicked "add a row" button. Add_Table_Rows(1); ViewState["tUserAddedRowCount"] = ++tUserAddedRowCount; } protected void Button2_Click(object sender, EventArgs e) { // User clicked "Submit" button. for (int x = 0; x < tDefaultRow_Count + tUserAddedRowCount; x++) { if (TextBox_Item[x].Text.ToString().Length > 0) { Response.Write(TextBox_Item[x].Text.ToString()); Response.Write(TextBox_Desc[x].Text.ToString()); Response.Write(TextBox_Quantity[x].Text.ToString()); Response.Write(TextBox_Price[x].Text.ToString()); Response.Write(TextBox_Total[x].Text.ToString()); } } } private void Add_Table_Rows(int NumberOfRows) { for (int x = 0; x < NumberOfRows; x++) { TableRow myRow = new TableRow(); Table1.Rows.Add(myRow); TableCell myCell0 = new TableCell(); myRow.Cells.Add(myCell0); TextBox myTextbox0 = new TextBox(); TextBox_Item[x] = myTextbox0; myCell0.Controls.Add(TextBox_Item[x]); TableCell myCell1 = new TableCell(); myRow.Cells.Add(myCell1); TextBox myTextbox1 = new TextBox(); TextBox_Desc[x] = myTextbox1; myCell1.Controls.Add(TextBox_Desc[x]); TableCell myCell2 = new TableCell(); myRow.Cells.Add(myCell2); TextBox myTextbox2 = new TextBox(); TextBox_Quantity[x] = myTextbox2; myCell2.Controls.Add(TextBox_Quantity[x]); TableCell myCell3 = new TableCell(); myRow.Cells.Add(myCell3); TextBox myTextbox3 = new TextBox(); TextBox_Price[x] = myTextbox3; myCell3.Controls.Add(TextBox_Price[x]); TableCell myCell4 = new TableCell(); myRow.Cells.Add(myCell4); TextBox myTextbox4 = new TextBox(); TextBox_Total[x] = myTextbox4; myCell4.Controls.Add(TextBox_Total[x]); } } }
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SQL Injection Cheat Sheet
June 27th, 2007
Run php 4 and php 5.2.x on the same machine with IIS 6.0 as ISAPI.
- Extract the ZIP packages of both php 4 & php 5 (not the Windows Installer) to c:\php4 & c:\php5 respectively.
- Setup the corresponding php.ini files in c:\php4 and c:\php5
- Add the Web Service Extensions for php4 and php5. For php4 use c:\php4\sapi\php4isapi.dll, php5 use c:\php5\php5isapi.dll
- Add the following registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\PHP\5\IniFilePath -> c:\php5 HKEY_LOCAL_MACHINE\SOFTWARE\PHP\IniFilePath -> c:\php4
- Add c:\php4 to the PATH environment variable.
- Add c:\php5 to the PATH environment variable.
- Associate each web site in IIS with the corresponding php version.
- Reboot.
Note: In IIS you still need to to have the DLL’s in the “Allowed Web Service Extensions List” and the extensions in the appropriate “Application Configuration” settings for the given websites/applications.
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HTML PowerPoint presentation running from a secure SharePoint site prompts with a “unsecured” dialog.
June 22nd, 2007
Comet – High Speed AJAX
June 12th, 2007
Basic Definitions of Comet:
Wiki
Server Technologies:
IE will not allow your to read xmlhttp.responseText untill xmlhttp.readyState = 4 (complete — connection closed). It works in FF.
var http_request = false; function makeRequest(url) { http_request = false; if (window.XMLHttpRequest) { // Mozilla, Safari,... http_request = new XMLHttpRequest(); if (http_request.overrideMimeType) { http_request.overrideMimeType('text/xml'); // See note below about this line } } else if (window.ActiveXObject) { // IE try { // http_request = new ActiveXObject("Msxml2.XMLHTTP"); http_request = new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) { try { http_request = new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) {} } } if (!http_request) { alert('Giving up :( Cannot create an XMLHTTP instance'); return false; } http_request.onreadystatechange = alertContents; http_request.open('GET', url, true); http_request.send(null); } var i = 0; var str = ""; function alertContents() { $('info').innerHTML = '<h3>'+ Date() + ' ' + http_request.readyState +':</h3>' + http_request.responseText; if (http_request.readyState == 4) { $('info').innerHTML = '<h1>Complete ('+ http_request.status +'):</h1>' + http_request.responseText; } } function $() { var elements = new Array(); for (var i = 0; i < arguments.length; i++) { var element = arguments[i]; if (typeof element == 'string') { if (document.getElementById) { element = document.getElementById(element); } else if (document.all) { element = document.all[element]; } } elements.push(element); } if (arguments.length == 1 && elements.length > 0) { return elements[0]; } else { return elements; } } function go(){ makeRequest('http://www.kevincornwell.com/comet/x-mixed-replace.php'); }
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