I am trying to replace a hash char in a string but the following is not working the
string address = "Blk 344, Jurong West, Street 11, #02-111";
address.Replace("#","%23");
Any ideas guys been driving me crazy
Query String full
http://localhost:54965/SKATEZ/thankyou.aspx?firstname=Fiora&lastname=Ray&address=Blk%20344,%20Jurong%20West,%20Street%2011,%20#02-111&total=22&nirc=S6799954H&country=Singapore&orderid=85&postalcode=746112
I construct the url as follows
string url = "thankyou.aspx?firstname=" + firstname + "&" + "lastname=" + lastname + "&" + "address=" + HttpUtility.EscapeDataString(address) + "&" + "total=" + total + "&" + "nirc=" + tbID.Text + "&" + "country=" + ddlCountry.SelectedValue + "&" + "orderid=" + orderid + "&" + "postalcode=" + tbPostalCode.Text;
Response.Redirect(url);
Try
address = address.Replace("#","%23");
Strings in C# are immutable:
Strings are immutable--the contents of a string object cannot be changed after the object is created, although the syntax makes it appear as if you can do this. For example, when you write this code, the compiler actually creates a new string object to hold the new sequence of characters, and that new object is assigned to b. The string "h" is then eligible for garbage collection.
Using System.Uri.EscapeDataString(string) should fix your issue:
var urlbuilder = new StringBuilder();
urlbuilder.AppendFormat("thankyou.aspx?firstname={0}", firstname);
urlbuilder.AppendFormat("&lastname={0}", lastname);
urlbuilder.AppendFormat("&address={0}", System.Uri.EscapeDataString(address));
urlbuilder.AppendFormat("&total={0}", total);
urlbuilder.AppendFormat("&nirc={0}", tbID.Text);
urlbuilder.AppendFormat("&country={0}", ddlCountry.SelectedValue);
urlbuilder.AppendFormat("&orderid={0}", orderid);
urlbuilder.AppendFormat("&postalcode={0}", tbPostalCode.Text);
Response.Redirect(urlbuilder.ToString());
(using System.Text.StringBuilder to compose your url makes the code a little more readable)
Related
I am trying to add some large string into string type varriable.But it gives an error.
string SuccessUrl = "~/Customer/Success.aspx?URL=" + Server.UrlEncode("Transactionid="
+ Transactionid + "&Amount=" + Amount + "&Name=" + Name +
"&EmailOfPayer=" + EmailOfPayer + "&bussness=" + business + "&CompanyName=" + CompanyName
+ "&PaymentDate=" + paymentDateTime +"&SecuritiesandComplianceFee=" + SecuritiesandComplianceFee
+"&Status=" + Convert.ToInt32(Status) + "&BackmyUri=" + BackmyUri);
I have an error because of the last varriable i.e. BackmyUri. The varriable have the string value as given below.
string BackmyUri = "http://localhost:11181/Payment.aspx"
it gives an error .
Input string was not in a correct format.
Any kind of help will be appreciated.
Input string was not in a correct format. is most likely the default error message for int.Parse() and `Convert.ToInt32' . You should really check that. Another helpful thing for us would be to show us an example that makes it error, show the result of:
var x = "Transactionid=" + Transactionid + "&Amount=" + Amount + "&Name=" + Name +
"&EmailOfPayer=" + EmailOfPayer + "&bussness=" + business + "&CompanyName=" + CompanyName
+ "&PaymentDate=" + paymentDateTime +"&SecuritiesandComplianceFee=" + SecuritiesandComplianceFee
+"&Status=" + Convert.ToInt32(Status) + "&BackmyUri=" + BackmyUri
I have created an application. This app contains the five textboxes id, name, surname, age and score.
When a user clicks the "okay button", these values are stores in an sql database.
Additionally, I want to store all of these information in an QR code. And when I decode it, the information should be shown in the textboxes respectively.
These are the references I am using so far.
using AForge.Video.DirectShow;
using Zen.Barcode;
using ZXing.QrCode;
using ZXing;
I can encode an ID number into a picture box, like so:
CodeQrBarcodeDraw qrcode = BarcodeDrawFactory.CodeQr;
pictureBox1.Image = qrcode.Draw(textBox1.Text, 50);
But I want all of the values in the textboxes to be storee in this QR code.
How can i do that?
The essence of the solution is, that you have to combine all the values from the textboxes into one string. To seperate them after decoding the QR code, you have to add a special character between the data values, that does not exist insinde the user input. After decoding the QR code, you can seperate the values by splitting the string at each occurance of the special character.
This is the quick and dirty way of doing that. If you want the QR code to be conformant to any specific format (like vcard), you have to reserach what it takes to compose the data for this format.
I expect your users cannot enter more than one line into the textboxes, so the newline character can be used as seperator character.
Encode all the information into one QR code.
var qrText = textBox1.Text + "\n" +
textBox2.Text + "\n" +
textBox3.Text + "\n" +
textBox4.Text + "\n" +
textBox5.Text;
pictureBox1.Image = qrcode.Draw(qrText, 50);
You can decode the QR code and assigning the data to the different textboxes again.
var bitmap = new Bitmap(pictureBox1.Image);
var lumianceSsource = new BitmapLuminanceSource(bitmap);
var binBitmap = new BinaryBitmap(new HybridBinarizer(source));
var reader = new MultiFormatReader();
Result result = null;
try
{
result = reader.Decode(binBitmap);
}
catch (Exception err)
{
// Handle the exceptions, in a way that fits to your application.
}
var resultDataArray = result.Text.Split(new char[] {'\n'});
// Only if there were 5 linebreaks to split the result string, it was a valid QR code.
if (resultDataArray.length == 5)
{
textBox1.Text = resultDataArray[0];
textBox2.Text = resultDataArray[1];
textBox3.Text = resultDataArray[2];
textBox4.Text = resultDataArray[3];
textBox5.Text = resultDataArray[4];
}
You can get this done by implementing below code :
"{" + '"' + "name" + '"' + ":" + '"' + txtName.Text + '"' + "," + '"' + "lname" + '"' + ":" + '"' + txtLname.Text + '"' + "," + '"' + "Roll" + '"' + ":" + '"' + txtRoll.Text + '"' + '"' + "class" + '"' + ":" + '"' + txtClass.Text + '"' + "}"
Result will be:
{"name":"Diljit","lname":"Dosanjh","Roll","2071","class":"BCA"}
Such that your QR scanner will recognize the data belong to its specific filed.
I have made a post request with comma separated values. But my form contents changes and "," replace with "%2C". So request does not receive at server side.
I just want to replace "%2C" with ",".
I tried with different codes but that code are for string.
//Uri.EscapeDataString(formContent).Replace("%2C", ",");
Above line is for string but I need same for FormContent.
Here is my Code.
Windows.Web.Http.HttpClient clientOb = new Windows.Web.Http.HttpClient();
Uri connectionUrl = new Uri("http://www.helloworld.com/istar/fileupload/Lip?");
string framURL = UTCdatetime + "," + lng + "," + lat + "," + speed + alt + "," + "," + battery_level + "," + accuracy;
Dictionary<string, string> pairs = new Dictionary<string, string>();
pairs.Add("name", Image_file_name);
pairs.Add("frame", framURL);
//Here is My Content Form.
Windows.Web.Http.HttpFormUrlEncodedContent formContent = new Windows.Web.Http.HttpFormUrlEncodedContent(pairs);
I'm getting FormContent encoded. like
{name=WP_20160224_002.jpg&frame=927858b101b71083f37549517819d6ac%2C20160225125928%2C%2C%2C%2C%2C%2C%2C100%2C%2C2%2C%2C%2C0}
I need to send request with Comma's so I want to remove "%2C". Please help out in this problem.
I Required above contentform like this...
{name=WP_20160224_002.jpg&frame=927858b101b71083f37549517819d6ac,20160225092908,74.253794,31.471193,-1,-1,0,,100,103,2,-1,0}
Here I send post request.
Windows.Web.Http.HttpResponseMessage response = await clientOb.PostAsync(connectionUrl, formContent);
You're confusing form encoding with URL encoding. Given your example, there's little need to encode this query string. Forms and query strings have a similar key=value syntax, but there are differences in format.
You're right to use the Uri class - but you can wait until the very end to construct it from a string, as this will ensure the given string is fully sanitized - see the remarks section of MSDN documentation of Uri class.
Here's an untested example:
string framURL = UTCdatetime + "," + lng + "," + lat + "," + speed + alt + "," + "," + battery_level + "," + accuracy;
Dictionary<string, string> pairs = new Dictionary<string, string>();
pairs.Add("name", Image_file_name);
pairs.Add("frame", framURL);
var queryString = String.Join("&", pairs.Select(kvp => kvp.Key + "=" + kvp.Value));
Uri connectionUrl = new Uri("http://www.helloworld.com/istar/fileupload/Lip?" + queryString);
Let me know how you get on!
I have a routine where i prompt the user for a value. In this case the city. They will type in for example LA. I store this value in a variable named inputValue.
Now i need to pass a string to crystal reports that uses this input and i want it to look like this
{member.name} = "LA"
string inputValue = GetInputValue("Enter value for " + fieldName);
string sqlInput = sqlInput.Substring(0, leftPos - 1) + " + inputValue + " + sqlInput.Substring(rightPos + 2);
O thought by using " + inputValue + " would do the trick but it only puts the quotation mark after the input value ex. LA \". What is the proper way to quote this?
" + inputValue + " +
Should be
inputValue +
Thus making
string sqlInput = sqlInput.Substring(0, leftPos - 1) + inputValue +
sqlInput.Substring(rightPos + 2);
Assuming you don't want '"' characters leading and trailing your string.
Then that would be
string sqlInput = sqlInput.Substring(0, leftPos - 1) +"\"" + inputValue + "\"" +
sqlInput.Substring(rightPos + 2);
To explain briefly, I'm trying to search Google with a keyword, then get the URLs of the top 10 results and save them.
This is the stripped down command line version of the code. It should return 1 result at least. If it works with that, I can apply it to my full version of the code and get all the results.
Basically the code I have right now, it fails if I try to get the entire source of Google. If I include a random section of code from Google's HTML source, it works fine. To me, that means my Regex has an error somewhere.
If there is a better way to do this aside from Regex, please let me know. The URLs are between <h3 class="r"><a href=" and " class=l onmousedown="return clk(this.href
I got this Regex code from a generator, but it's really hard for me to understand Regex, Since nothing I've read explains it clearly. If someone could pick out what's wrong and explain why, I'd greatly appreciate it.
Thanks,
Kevin
using System;
using System.Text.RegularExpressions;
using System.Net;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
WebClient wc = new WebClient();
string keyword = "seo nj";
string html = wc.DownloadString(String.Format("http://www.google.com/search?q={0}", keyword));
string re1 = "(<)"; // Any Single Character 1
string re2 = "(h3)"; // Alphanum 1
string re3 = "(\\s+)"; // White Space 1
string re4 = "(class)"; // Variable Name 1
string re5 = "(=)"; // Any Single Character 2
string re6 = "(\"r\")"; // Double Quote String 1
string re7 = "(>)"; // Any Single Character 3
string re8 = "(<)"; // Any Single Character 4
string re9 = "([a-z])"; // Any Single Word Character (Not Whitespace) 1
string re10 = "(\\s+)"; // White Space 2
string re11 = "((?:[a-z][a-z]+))"; // Word 1
string re12 = "(=)"; // Any Single Character 5
string re13 = ".*?"; // Non-greedy match on filler
string re14 = "((?:http|https)(?::\\/{2}[\\w]+)(?:[\\/|\\.]?)(?:[^\\s\"]*))"; // HTTP URL 1
string re15 = "(\")"; // Any Single Character 6
string re16 = "(\\s+)"; // White Space 3
string re17 = "(class)"; // Word 2
string re18 = "(=)"; // Any Single Character 7
string re19 = "(l)"; // Any Single Character 8
string re20 = "(\\s+)"; // White Space 4
string re21 = "(onmousedown)"; // Word 3
string re22 = "(=)"; // Any Single Character 9
string re23 = "(\")"; // Any Single Character 10
string re24 = "(return)"; // Word 4
string re25 = "(\\s+)"; // White Space 5
string re26 = "(clk)"; // Word 5
Regex r = new Regex(re1 + re2 + re3 + re4 + re5 + re6 + re7 + re8 + re9 + re10 + re11 + re12 + re13 + re14 + re15 + re16 + re17 + re18 + re19 + re20 + re21 + re22 + re23 + re24 + re25 + re26, RegexOptions.IgnoreCase | RegexOptions.Singleline);
Match m = r.Match(txt);
if (m.Success)
{
Console.WriteLine("Good");
String c1 = m.Groups[1].ToString();
String alphanum1 = m.Groups[2].ToString();
String ws1 = m.Groups[3].ToString();
String var1 = m.Groups[4].ToString();
String c2 = m.Groups[5].ToString();
String string1 = m.Groups[6].ToString();
String c3 = m.Groups[7].ToString();
String c4 = m.Groups[8].ToString();
String w1 = m.Groups[9].ToString();
String ws2 = m.Groups[10].ToString();
String word1 = m.Groups[11].ToString();
String c5 = m.Groups[12].ToString();
String httpurl1 = m.Groups[13].ToString();
String c6 = m.Groups[14].ToString();
String ws3 = m.Groups[15].ToString();
String word2 = m.Groups[16].ToString();
String c7 = m.Groups[17].ToString();
String c8 = m.Groups[18].ToString();
String ws4 = m.Groups[19].ToString();
String word3 = m.Groups[20].ToString();
String c9 = m.Groups[21].ToString();
String c10 = m.Groups[22].ToString();
String word4 = m.Groups[23].ToString();
String ws5 = m.Groups[24].ToString();
String word5 = m.Groups[25].ToString();
//Console.Write("(" + c1.ToString() + ")" + "(" + alphanum1.ToString() + ")" + "(" + ws1.ToString() + ")" + "(" + var1.ToString() + ")" + "(" + c2.ToString() + ")" + "(" + string1.ToString() + ")" + "(" + c3.ToString() + ")" + "(" + c4.ToString() + ")" + "(" + w1.ToString() + ")" + "(" + ws2.ToString() + ")" + "(" + word1.ToString() + ")" + "(" + c5.ToString() + ")" + "(" + httpurl1.ToString() + ")" + "(" + c6.ToString() + ")" + "(" + ws3.ToString() + ")" + "(" + word2.ToString() + ")" + "(" + c7.ToString() + ")" + "(" + c8.ToString() + ")" + "(" + ws4.ToString() + ")" + "(" + word3.ToString() + ")" + "(" + c9.ToString() + ")" + "(" + c10.ToString() + ")" + "(" + word4.ToString() + ")" + "(" + ws5.ToString() + ")" + "(" + word5.ToString() + ")" + "\n");
Console.WriteLine(httpurl1);
}
else
{
Console.WriteLine("Bad");
}
Console.ReadLine();
}
}
}
You're doing it wrong.
Google has an API for doing searches programmatically. Don't put yourself through the pain of trying to parse HTML with regexes, when there's already a published, supported way to do what you want.
Besides, what you're trying to do -- submit automated searches through Google's Web site and scrape the results -- is a violation of section 5.3 of their Terms of Service:
You specifically agree not to access (or attempt to access) any of the Services through any automated means (including use of scripts or web crawlers)
using RegEx to parse HTML is sado-masochism.
Try using the HTML Agility Pack instead. It will allow you to parse HTML. See this question for an example of using it.