[Solved] Get all keys from Hashtable

[ad_1] You can iterate through HashTable keys as: foreach(object key in hashTable.Keys) { Console.WriteLine(String.Format(“{0}: {1}”, key, hashTable[key])); } Or you can also do as below: foreach(DictionaryEntry entry in hashtable) { Console.WriteLine(entry.Key + “:” + entry.Value); } 0 [ad_2] solved Get all keys from Hashtable

[Solved] Is there any way to restrict inheritance? [closed]

[ad_1] If u really dont want to inherit a class,then just make its member variables and member functions as private ,if other class tries to inherit it they cant have access to its funtions and variables anyways. But using final is a better option 1 [ad_2] solved Is there any way to restrict inheritance? [closed]

[Solved] Convert LINQ C# to VB.Net

[ad_1] Here’s a working sample: http://dotnetfiddle.net/LNksSW The reason for the error you’re getting is that you’re missing Imports System.Linq at the top of your file. Dim dt as DataTable = new DataTable dt.Columns.Add(“col1”) dt.Rows.Add(“1000000”) dt.Rows.Add(“0010000”) dt.Rows.Add(“0100000”) Dim result = dt _ .AsEnumerable() _ .Select(Function(r) r.Field(Of String)(0)) _ .Select(Function(s) string.Join(“”, s.Select(Function(x, i) _ If(x = “0”, … Read more

[Solved] How to track changes in a specified folder on c# [closed]

[ad_1] Use FileSystemWatcher Here is a simple code example watching for created file: public void Watcher() { //Create a new FileSystemWatcher. FileSystemWatcher watcher = new FileSystemWatcher(); //Set the filter to only catch TXT files. watcher.Filter = “*.txt”; //Subscribe to the Created event. //Created Occurs when a file or directory in the specified Path is created. … Read more

[Solved] How to use Switch in C# [closed]

[ad_1] Create an function and call that function. public void Foo() { string istrue = “true”; bool mybool = Convert.ToBoolean(istrue); trans.ADD_NEW_TRANS(Convert.ToInt32(txtID.Text), dtTransDate.Value, txtVibNO.Text, cmbSenderSite.Text, cmbRecievedSite.Text, Convert.ToInt32(txtWorkHours.Text), Convert.ToInt32(cmbTrans.SelectedValue), Program.userInfo.UserName); vib.UPDATE_TRANS_ISOFF(txtVibNO.Text, mybool); MessageBox.Show(“done”, “done”, MessageBoxButtons.OK, MessageBoxIcon.Information); btnSave.Enabled = false; } And you can use switch like this switch (cmbTrans.Text) { case “Good”: //this is mean if(cmbTrans.Text == … Read more

[Solved] wrong result in Visual Studio

[ad_1] insert_recursively does not return a value when it goes into else block however you store the returned value (garbage) in right_linker or left_linker anyway. Note that compiler issues a corresponding warning: warning C4715: ‘insert_recursively’: not all control paths return a value 1 [ad_2] solved wrong result in Visual Studio

[Solved] Extract int value and string from string [closed]

[ad_1] Assume the string follows the format <int,string>,…. Please find the pseudo-code below: Loop through the string `str` and { smaller_sign_pos = str.find(‘<‘, prev_pos) entry_comma_pos = str.find(‘,’, smaller_sign_pos+1) greater_sign_pos = str.find(‘>’, entry_comma_pos+1) if (all pos values are not `npos`) { int_value = atoi(str.substr(smaller_sign_pos+1, entry_comma_pos-smaller_sign_pos-1)) str_value = str.substr(entry_comma_pos+1, greater_sign_pos-entry_comma_pos-1) prev_pos = greater_sign_pos+1 append int_value to int … Read more

[Solved] If I’m able to printf an array index with %x, how do I then save it into a string? [closed]

[ad_1] You have a couple of choices. You can use sprintf or one of it’s cousins which work like printf or you can use std::ostringstream. snprintf example #include <cstdio> char buffer[100] = “some text already there “; std::snprintf(buffer + strlen(buffer), sizeof(buffer) – strlen(buffer), “%x”, index); . std::ostringstream example #include <sstream> std::string text(“some already existing text … Read more

[Solved] c++ (My code is stuck in the first function) [closed]

[ad_1] On the following line for(student_type *p; p<=&studs[1]; ++p){ You should initialize the variable p is not initialized. You should set it to a known value. I guess you’d want to initialize it as follows. Also your stop condition goes one too far: use < instead of <=. for(student_type *p=studs; p<&studs[1]; ++p){ 3 [ad_2] solved … Read more