[Solved] why the async Task always return empty value [closed]

[ad_1] Your problem seems to be that waiting for test().Result causes a dead lock. The reason is that this line await Task.Delay(1000); returns the execution flow to the caller, which then calls test().Result to wait for the task to complete. So your main thread is blocking. The await in the above line tries to resume … Read more

[Solved] Installing Hadoop in LinuxMint

[ad_1] can install the VM on linux You can use a VM on any host OS… That’s the point of a VM. The last link is only Hadoop, where Hortonworks has much, much more like Spark, Hive, Hbase, Pig, etc. Things you’d need to additionally install and configure yourself otherwise Which is better for learning … Read more

[Solved] Failed to convert parameter value from a SqlParameter to a String

[ad_1] The ExecuteDataSet call takes the actual parameter values, not SqlParameter objects. Change it to simply do: var ds1 = db.ExecuteDataSet(“Getmagesbylot2”, “Bob123457”); You might also want to check that you’ve spelled the SP correctly, maybe it should be GetImagesByLot2. 2 [ad_2] solved Failed to convert parameter value from a SqlParameter to a String

[Solved] Circular progress indicator with animation at end

[ad_1] You can use this well known library AnimCheckBox. Here is an screenshot what will you get. How to use? Add this dependency to your app level build.gradle dependencies{ compile ‘com.hanks.animatecheckbox:library:0.1’ } Then in your layout.xml <com.hanks.library.AnimateCheckBox android:layout_width=”50dp” android:layout_height=”50dp” android:padding=”15dp” app:animDuration=”200″ app:checkedColor=”#00f” app:lineColor=”#fff” app:lineWidth=”1.2dp” app:unCheckColor=”#ff0″/> 2 [ad_2] solved Circular progress indicator with animation at end

[Solved] singleton is design-pattern or anti-pattern? [closed]

[ad_1] As far as I know, the book AntiPatterns by Brown et al, 1998 may have been the first to popularise the term. It defines an anti-pattern like this: “An AntiPattern is a literary form that describes a commonly occurring solution to a problem that generates decidedly negative consequences.” I think that it’s worthwhile to … Read more

[Solved] how to fetch data from xml document and write to a text file?

[ad_1] There are one to many ways to achieve this: using System; using System.IO; using System.Xml; public class SampleXML { public static void Main() { //Create the XmlDocument. XmlDocument doc = new XmlDocument(); doc.Load(“TaskName.xml”); //Display the desired tag. XmlNodeList elemList = doc.GetElementsByTagName(“name”); for (int i=0; i < elemList.Count; i++) { Console.WriteLine(elemList[i].InnerXml); } } } or … Read more

[Solved] Pandas Python: KeyError Date

[ad_1] This looks like an excel datetime format. This is called a serial date. To convert from that serial date you can do this: data[‘Date’].apply(lambda x: datetime.fromtimestamp( (x – 25569) *86400.0)) Which outputs: >>> data[‘Date’].apply(lambda x: datetime.fromtimestamp( (x – 25569) *86400.0)) 0 2013-02-25 10:00:00.288 1 2013-02-26 10:00:00.288 2 2013-02-27 10:00:00.288 3 2013-02-28 10:00:00.288 To assign … Read more

[Solved] Extract data from txt file and create new file based on specific text dynamically

[ad_1] Here is an easy-to-read solution with Bash and grep: #!/bin/bash while read line ; do if FILE=$(grep -P -o ‘[a-z]*\.txt(?= – Starting)’ <<< “$line”); then F=”$FILE” fi if ! grep ‘\*\*\*\*’ <<< “$line” ; then echo “$line” >> “$F” fi done It gives the following result $ cat file.txt ****************** abc.txt – Starting point … Read more

[Solved] how to find the words that are likely to follow the single word in large string in python .?

[ad_1] You can use a regex to look for words that follow the word python, for example >>> import re >>> re.findall(r’Python (\w+)’, s) [‘is’, ‘has’, ‘features’, ‘interpreters’, ‘code’, ‘is’, ‘Software’] Since this list may contain duplicates, you could create a set if you want a collection of unique words >>> set(re.findall(r’Python (\w+)’, s)) {‘Software’, … Read more

[Solved] Ignoring the Last String in Vectors of Vectors for set_difference

[ad_1] Assumptions: using Lines = std::vector<std::vector<std::string>>; Lines current = { … }; // sorted on std::less<std::vector<std::string>> Lines input = { … }; // also sorted on std::less<std::vector<std::string>> Lines difference; Rather than doing std::set_difference(current.begin(), current.end(), input.begin(), input.end(), std::back_inserter(difference)); You should do auto compare = [](Lines::const_reference lhs, Lines::const_reference rhs) { assert(lhs.size() && rhs.size()) // same as default … Read more

[Solved] Javascript function only works in edge not chrome, firefox or opera

[ad_1] I see that you are using asp.net. You can use this example in html code to select a default button that will be activated by pressing enter <asp:Panel ID=”Panel1″ runat=”server” DefaultButton=”LogIn”> <p class=”InfoText”>Username:</p> <asp:TextBox ID=”Username” runat=”server”></asp:TextBox> <p class=”InfoText”>Password:</p> <asp:TextBox ID=”Password” runat=”server” TextMode=”Password”></asp:TextBox> </asp:Panel> Hope this helps. [ad_2] solved Javascript function only works in edge … Read more

[Solved] How to get a string from a function class?

[ad_1] You should probably get familiar with basic programing paradigms before proceeding with your app, especially method return value. The method you’re looking for should be something like this: public String cekberhasil() { for (int i = 0; i < GRID_AREA; i++) if(mIndexes[0] == 0 && mIndexes[1]==1 && mIndexes[2]==2) return “success”; else return “”; } … Read more