Questions




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1
I have deleted my database by accidentially in sql server 2017 is there is any way to recover it?

Hi, I have deleted my database by accidentially in sql server 2017 is there is any way to recover it? Thanks.

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SQL recover-deleted-database
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1
How to update remote branches using Visual Studio Git?

Recently, I have pushed my code from local git to azure-devops, but after pushing code and clicking on "Fetch" doesn't update my local branches, it should have two branches dev & master but showing only one.

So, How can I update branches locally to show dev and master in my Visual Studio 2017 Git?

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Visual-studio Visual-studio-2017 git-branches-not-updated-in-visual-studio
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1
How to get latitude and longitude from address using C# or Javascript?

I have a requirement to get latitude and longitude from address using C# or Javascript, any solution will work. So, how can I get them using address?

Basically, I need to convert the address into Lat / Long and show it in Google maps in ASP.NET MVC web-application, so javascript solution will also work.

Note: I don't have lat/long, just address of the user.

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C# Javascript google-maps-api lat-long-from-address-google-maps
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1
How do I stop from browser being closed when I stop debugging in Visual Studio 2017?

I have recently updated my Visual studio from 2015 to 2017 and started using 2017 now, but when I start debugging in it, it opens website in new browser tab and as soon as I stop debugging it closes the browser tab/website also.

Previously, in Visual Studio 2015, Browser tab never used to get closed as soon as I stop debugging.

So, how i can disable this new feature and keep website open/running even when debugging is stoppped in Visual Studio 2017?

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Visual-studio visual-studio-2017 stop-browser-from-being-closed-in-visual-studio-2017
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1
B-Tree Implementation

How do you implement B-Tree in java with a GUI.

I'm new to Java Algorithms and want to know how to implement this data structure in code.

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Java B-Tree Data Structure
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1
Prevent negative value from being entered in HTML input type number field?

While creating HTML5 input type number in the html form, I would like to disable or prevent user from entering negative number in it, user should be able to enter only positive number, how can i do that, current HTML code is as below

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HTML html5 form html number selector
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1
Sum of two column values from two different tables

I want sum of two column values from two different tables, how can I do it using SQL?

Suppose, these are my two tables, Table 1

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sql sql server
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1
ASP.NET Web-Form Error "WebForms UnobtrusiveValidationMode requires a ScriptResourceMapping for 'jquery'. Please add a ScriptResourceMapping named jquery(case-sensitive)."

I have created a new empty ASP.NET web-forms project using Visual Studio, after adding the new .aspx (web-form) file with the RegularExpressionValidator code as shown below, I am getting an error "WebForms UnobtrusiveValidationMode requires a ScriptResourceMapping for 'jquery'. Please add a ScriptResourceMapping named jquery(case-sensitive)."

Here is the code of my Web-Form page(Default.aspx)

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="EmailIdValidate.Default" %>

<!DOCTYPE html>
<script runat="server">
    protected void Button1_Click(object sender, EventArgs e)
    {
        Label1.Text = "Your email: " + TextBox1.Text.ToString();
    }
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Validate email address using RegularExpressionValidator in ASP.NET</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:Red">RegularExpressionValidator: email</h2>
        <asp:Label 
             ID="Label1" 
             runat="server"
             Font-Bold="true"
             Font-Italic="true"
             Font-Size="Large"
             ForeColor="SeaGreen"
             >
        </asp:Label>

        <br /><br />
        <asp:Label ID="Label2" runat="server" Text="Email">
        </asp:Label>
        <asp:TextBox  ID="TextBox1" runat="server" >
        </asp:TextBox>

        <asp:RequiredFieldValidator 
             ID="RequiredFieldValidator1"
             runat="server"
             ControlToValidate="TextBox1"
             Text="*"
             >
        </asp:RequiredFieldValidator>

        <asp:RegularExpressionValidator 
            ID="RegularExpressionValidator1"
            runat="server" 
             ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"
            ControlToValidate="TextBox1"
            ErrorMessage="Input valid email address!"
            >
        </asp:RegularExpressionValidator>

        <br /><br />
        <asp:Button 
             ID="Button1" 
             runat="server" 
             Text="Submit email"
             Font-Bold="true"
             ForeColor="DodgerBlue" 
             OnClick="Button1_Click"
             />
    </div>
    </form>
</body>
</html>

When building the project and running it browser getting error details as shown below

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C# ASP.NET
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1
How do Add class using Javascript?

I wanted to add or remove classes from my HTML <div> dynamically using Javascript, I don't want to use jQuery here, so How can I add a class using JS?

If possible, I would also like to know how can I toggle class in Javascript

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Javascript js-add-class javascript-toggle-class
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1
How to trigger click on pressing Enter key inside text input using Javascript or jQuery?

How to trigger the click event on the search button, when user press enter key inside text input html, suppose this is my HTML

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jQuery Javascript trigger button click on enter key jquery

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