Excel Image

 In excel, when you you copy the cells, it will save as image in clipboard

How to block or unblock css in website in chrome - How to change agent of chrome

 > Go to chrome developer tools

> Go to Network Tab

> Click on CSS, JS, ALL

> Press CTRL + F5 Key and you will see files. You can block that files.

> And you can change slow 4g or fast 4g or you can change agent in Chrome.

How to record website in chrome

 >Open developer tools

> Click on Recorder

> Click on Create recording

> Click on Start recording.

> Click on website and when you click on buttons and anywhere it will save.

>You can import, export and delete the recordings.

>It will save as JSON file.

>Click on play recording to play.

if statement in MySql - if condition in MYSql - if in MySql

 select IF(0 > 0, 'True', 'False') as message;

if exist drop and create database in MySql

 create DATABASE IF not EXISTS test2;

 drop DATABASE IF not EXISTS test2;

How to create new tab in My Sql

 Click on Create a new Sql Tab.    Below is the screenshot:-

What is called t1 and t2 in join

 Select * from table1 t1 inner join table t2 on t1.id = t2.id 

Here t1 and t2 are called alias.

How to create stored procedure in MySql and how to call stored procedure

 DELIMITER $$

CREATE PROCEDURE new_procedure_procedure_name()

BEGIN

    SELECT * 

    FROM test.new_table t1

    LEFT JOIN test1.table1 t2 ON t1.id = t2.id;

END $$

DELIMITER ;

===============================

CALL new_procedure_procedure_name();

How to create new database in MYSql

 > First open My SQL workbench

>Than click on Database menu and click on Connect to database

> Than in navigator , Select Schemes tabs

> Right click in navigator and click on Create schema 

> and Type name and click on apply and click on apply and click on finish

How to connect MySql and how to install MySql

> First download MySql Workbench

> Than click on Database menu and click on Connect to database.

> Than click on OK button

> Than click on Schemas  tab.

> Than write query 

For Creating database

Create Schema test or Create Database test;

How to add chart in msword - How to add chart in ms word

 > Open MSWord

> Go to Insert Menu

> Click on Chart

> Right Click on Char and Click on Edit data to edit the data

How to add watermark in msword

 > Go to Design Menu

> Click on Watermark and add

How to add scale or ruler in MS Word

 >First Click on Draw Menu

>Than Click on Ruler and with Mouse scroll, you can rotate Scale.

Note:-

Scale is also called Ruler.

how to print selected cell in excel

 > Go to File

> Go to Print

> Go to Print What and Select Selection from Radio box

How to add automatic date in table column - How to insert automatic date in table column

Use 

SELECT GETDATE() //will give current date

 SELECT CAST(GETDATE() AS DATE) //will give only date

How to call a function in VBA

Public Sub test()

    MsgBox ("dfdfd")

    test1

    End Sub

Public Function test1()

    MsgBox ("dfdfd")

End Function

ref:-  https://learn.microsoft.com/en-us/office/vba/language/concepts/getting-started/calling-sub-and-function-procedures

How to add variable in Visual basic - vba

 Dim Counter As Integer

How to add text to MS word Document - in VB

     Sub mecro1()

Selection.TypeText "www.automateexcel.com"

 MsgBox "You need to select some text."

    End Sub

    

ref:-  https://www.automateexcel.com/vba/word/macro-examples

How to do eye protection in window 11 - How to do eye protection in window 10

 > Search for night light (Turn it on)option in search under display settings

> Also you can search for color filter settings in search option

> Also search for "adjust clear text" setting in search option under window button click

>Also you can search for brightness and change the brightness level

> Also you can increase Zoom in Chrome browser (Min 110% is good).

Also you can use apps like eye saver, CareUEyes

Also you can use Magnifier.

Also you can use scale from 100% to 110% from display settings.(Min 110% is good )

Also you can use resolution change. and color in Intel graphics command centre.

Also you can go to text size in scale in system settings and change it to 100% to 110%.(Min 110% is good )

ref:- https://allthings.how/how-to-change-brightness-on-windows-11/

how to increase color in android or how to change color in android - how to decrease color

 >You can use color changer app but it needs root permission

2) Display collaboration, blue light filter or sfilter , you can use these apps for android for decreasing color.

>Also simples is the rgb settings app for color changer.

export to excel in grid - simplest way

   Response.Clear();

        Response.Buffer = true;

        Response.ClearContent();

        Response.ClearHeaders();

        Response.Charset = "";

        string FileName = "Vithal" + DateTime.Now + ".xls";

        StringWriter strwritter = new StringWriter();

        HtmlTextWriter htmltextwrtter = new HtmlTextWriter(strwritter);

        Response.Cache.SetCacheability(HttpCacheability.NoCache);

        Response.ContentType = "application/vnd.ms-excel";

        Response.AddHeader("Content-Disposition", "attachment;filename=" + FileName);

        GridView1.GridLines = GridLines.Both;

        GridView1.HeaderStyle.Font.Bold = true;

        GridView1.RenderControl(htmltextwrtter);

        Response.Write(strwritter.ToString());

        Response.End();

RDLC Report manual export to pdf, image etc - report viewer export to pdf manually

 https://www.c-sharpcorner.com/blogs/rdlc-report-export-on-server

https://www.aspsnippets.com/Articles/2568/Export-RDLC-Report-to-PDF-without-using-ReportViewer-in-ASPNet-with-C-and-VBNet/

How to add dummy data to datatable with multiple columns

 DataTable dt = new DataTable("DummyData");

        dt.Columns.Add("Id", typeof(int));

        dt.Columns.Add("Name", typeof(string));

        dt.Columns.Add("City", typeof(string));

        DataTable dt1 = new DataTable("DummyData");

        dt1.Columns.AddRange(new DataColumn[] {

        new DataColumn("Id", typeof(int)),

        new DataColumn("Name", typeof(string)),

        new DataColumn("City", typeof(string))

    });

        dt.Rows.Add(1, "John Doe", "New York");

        dt.Rows.Add(2, "Jane Smith", "London");

        dt.Rows.Add(3, "Peter Jones", "Paris");

//or

 //  DataRow newRow = dt.NewRow();

    newRow["Id"] = 4;

   // newRow["Name"] = "Alice Brown";

    //newRow["City"] = "Tokyo";

    //dt.Rows.Add(newRow);

        GridView1.DataSource = dt;

        GridView1.DataBind();

How to add dummy data to datatable or gridview with array of string

   string[] myString1 = { "sum", "minus"};

        

        DataTable dt = new DataTable();

        dt.Columns.Add("Name", typeof(string));

        foreach (string item in myString1)

        {

            System.Data.DataRow row = dt.NewRow();

            row["Name"] = item; // Assign the string to the column

            dt.Rows.Add(row); // Add the row to the DataTable

        }

        

        GridView1.DataSource = dt;

        GridView1.DataBind();

How to use same mouse for computer and mobile

 >To use this, you have to first connect these devices by bluetooth

> Second you have to install GlideX, Phone mirror , Remote mouse, PC remote to your both devices

How to use two displays or two monitors with one mouse

>Right click on desktop

 >Go to display settings

> and there is option of "Duplicate these videos", "Extend these videos" and click on Extend these videos , it will work for both monitors.

and use "microsoft without borders" for two different computers and having same mouse.

How to open binary file from database on browser- only display

 byte[] bytes =   file.FileData;

Response.Clear();

    Response.ContentType = file.ContentType;

Response.BinaryWrite(bytes);

https://www.aspsnippets.com/questions/206135/Open-Show-Base64-PDF-data-in-new-window-Tab-using-C-and-VBNet-in-ASPNet/

How to open new window with width and height - using window.open

  <a href="#" onclick="MyWindow=window.open('https://www.aspsnippets.com/Articles/660/Display-image-from-database-in-Image-control-without-using-Generic-Handler-in-ASPNet/','MyWindow','width=600,height=300'); ">click to open new window</a>

How to view the image in browser from database - binary image from database - asp.net

  string alert1 = "var image = new Image();";

        alert1+= "image.src='data:image/jpg;base64,"+ Convert.ToBase64String(bytes)+"';";

        alert1 += "var w = window.open('');";

              alert1+= "w.document.write(image.outerHTML);";

           ScriptManager.RegisterStartupScript(this, this.GetType(), "OpenNewTabScript", alert1, true);

ref:-https://stackoverflow.com/questions/27798126/how-to-open-the-newly-created-image-in-a-new-tab

System.InvalidOperationException: ExecuteScalar: Connection property has not been initialized.

 This error comes when you write below code:-

using (SqlCommand cmd=new SqlCommand("SELECT TOP 1 [FileID]  FROM [UploadFiles] order by Fileid desc"))

and not passed con as second parameter in SqlCommand. Use below code

using (SqlCommand cmd=new SqlCommand("SELECT TOP 1 [FileID]  FROM [UploadFiles] order by Fileid desc", con))

also you have to add below line

cmd.CommandType = System.Data.CommandType.Text;

How to display binary images from database - How to view images from database - view binary images - asp.net c# - How to download file from database

protected void FetchImage(object sender, EventArgs e)

{

    string id = ddlImages.SelectedItem.Value;

    Image1.Visible = id != "0";

    if (id != "0")

    {

        byte[] bytes = (byte[])GetData("SELECT Data FROM tblFiles WHERE Id =" + id).Rows[0]["Data"];

        string base64String = Convert.ToBase64String(bytes, 0, bytes.Length);

        Image1.ImageUrl = "data:image/png;base64," + base64String;

    }

}

ref:- https://www.aspsnippets.com/Articles/660/Display-image-from-database-in-Image-control-without-using-Generic-Handler-in-ASPNet/ 

How to run background music in website - HTML

 https://www.tutorialspoint.com/how-to-add-background-music-to-your-web-page

How to download file using binarywrite function and download file from url link - using webclient function

  protected void btnClickMe_Click(object sender, EventArgs e)

    {

                WebClient client = new WebClient();

        byte[] bytes = client.DownloadData("https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgahqj6mU5OTtB-PLGl36tvYYv02OuXuR__pTakG-Y8dBc36TZaSboLga6RwM8DJUQKAwJ_sSjkp-4nhW1udweEejazbrZ50z2cb1ynJgIaZNBlrSIy827bc_5iY6UesB4/s220/WIN_20220808_12_53_18_Pro.jpg");

        Response.Clear(); //This must be add ,without this the file that you save will not be open

        Response.AddHeader("content-disposition", "attachment; filename=1.jpg"); 

         

 //Response.ContentType = System.Net.Mime.MediaTypeNames.Image.Jpeg; 

        //"application/octet-stream"; 

        Response.BinaryWrite(bytes);

        Response.Flush();

        Response.End();

    }

Note:-         Response.Clear(); //This must be add ,without this the file that you save will not be open

How to check ram in mobile android phone

 > Go to developer option

> Click on memory and you will see the total memory usage.

Hartron question papers

 https://www.scribd.com/

https://hartrondeo.in/hartron-deo-mix-questions/

https://wifiteachshala.blogspot.com/

How to change text font background of Menu Under Header of Blogger - Tabs of blogger - pages gadget of blogger

> Click on theme

>Click on Customize

>Click on advance

>Select tabs from dropdown list

> And you can change font size, font , background

>and click on save

Also you can change font size and font of other gadgets

How to convert div to pdf using itextsharp asp.net - C# - Simplest and less code

First you have to download itextsharp.dll and itextsharp.pdfa.dll files and  you have to give the font size as below because in some case it will give error that font size is small.

 <form id="form1" runat="server">

        <asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>

    <div id="mainDiv" runat="server">

        

        <asp:Label runat="server" Text="Test" Font-Bold="true" Font-Size="13px" />

        <br />

        <asp:Label runat="server" Text="E-Admit Card" Font-Bold="true" Font-Size="13px" />

        <br />

        <table border="1">

            <tr>

                <td>

                    <asp:Label runat="server" Text="Date Of Test:" Font-Size="13px" />

                </td>

                <td>

                    <asp:Label runat="server" Text="20/11/2024" Font-Size="13px" />

                </td>

            </tr>

        </table>

        

    </div>

        <asp:Button ID="Button1" runat="server" Text="Print" OnClick="Button1_Click" />

</form>

===========================

 protected void Button1_Click(object sender, EventArgs e)

    {

        Response.ContentType = "application/pdf";

        Response.AddHeader("content-disposition", "attachment;filename=Panel.pdf");

        Response.Cache.SetCacheability(HttpCacheability.NoCache);

        StringWriter stringWriter = new StringWriter();

        HtmlTextWriter htmlTextWriter = new HtmlTextWriter(stringWriter);

        

        mainDiv.RenderControl(htmlTextWriter);

        StringReader stringReader = new StringReader(stringWriter.ToString());

        Document Doc = new Document(PageSize.A4, 10f, 10f, 100f, 0f);

        HTMLWorker htmlparser = new HTMLWorker(Doc);

        PdfWriter.GetInstance(Doc, Response.OutputStream);

        Doc.Open();

        htmlparser.Parse(stringReader);

        Doc.Close();

        Response.Write(Doc);

        Response.End();

    }

Nupkg extension file from nuget package

 Convert nupkg file to zip file and you will get dll files in it. 

On the right hand side of nuget website you will get "download package" option.

How to print a print statement of sql in asp.net c# - how to call a another event in asp.net event

 using System;

using System.Data.SqlClient;

public class SqlPrintExample

{

    public static void Main(string[] args)

    {

        string connectionString = "Data Source=YourServer;Initial Catalog=YourDatabase;Integrated Security=True";

        string sqlQuery = "PRINT 'This message comes from SQL.'; SELECT GETDATE() AS CurrentDateTime;";

        using (SqlConnection connection = new SqlConnection(connectionString))

        {

            // Attach an event handler to capture InfoMessage events (including PRINT statements)

            connection.InfoMessage += Connection_InfoMessage;

or// conn.InfoMessage += new SqlInfoMessageEventHandler( Connection_InfoMessage);

            try

            {

                connection.Open();

                using (SqlCommand command = new SqlCommand(sqlQuery, connection))

                {

                    using (SqlDataReader reader = command.ExecuteReader())

                    {

                        while (reader.Read())

                        {

                            Console.WriteLine($"Current Date Time from SQL: {reader["CurrentDateTime"]}");

                        }

                    }

                }

            }

            catch (Exception ex)

            {

                Console.WriteLine($"Error: {ex.Message}");

            }

        }

    }

    private static void Connection_InfoMessage(object sender, SqlInfoMessageEventArgs e)

    {

        // Display the message from the SQL PRINT statement

        Console.WriteLine($"SQL InfoMessage: {e.Message}");

    }

}

do while loop in sql server - Cursor in Sql Server

For data looping in sql Server, we use While loop  or cursor

 DECLARE @cnt INT = 0;

WHILE @cnt < 10

BEGIN

   PRINT 'Inside simulated FOR LOOP on TechOnTheNet.com';

   SET @cnt = @cnt + 1;

END;

PRINT 'Done simulated FOR LOOP on TechOnTheNet.com';

GO

For cursor:-

https://www.c-sharpcorner.com/blogs/how-to-use-cursors-and-while-loop-in-sql-server

How to download the file secretly using webclient class -asp.net c#

  using (WebClient client = new WebClient())

        {

            

            string url = "https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiOJA1ZDa4CQ6OwLx-iL10cLEXpzoJZmZUVLHjJqHBr3-Q9TBEBpjD_ZZgtNGMj59CXGWtZ1yu-CfUoyuU8I7nGjgpwk0wCal_oGSPZNREQssIHeC5PFC10v8YdEIe5ie2wLyfGsrHSBR213ATgNXPyotNs66AoYF2CWPfAx9gu2cgYKw/s1600/Screenshot%202025-05-14%20184428.png";

            

            string savePath = "D:/image1212.jpg";

            client.DownloadFile(url, savePath);

        }

How to call a http handler in web form - asp.net c#

 <script type="text/javascript" src="http://localhost:49183/AsyncHTTPModuleHandler/MyHandler.ashx?url=<%= Request.Path%>">

</script>

public override ProcessRequestAsync(HttpContext context)

{

    string targetUrl = context.Request.QueryString["url"];

}

How to create and download txt file programaticaly with asp.net c# and write content in it

   Response.Clear();

        Response.Write("This is an HttpHandler Test.");

        Response.Write("<p>Your Browser:</p>");

        Response.AddHeader("content-disposition", "attachment; filename=t.txt");

        Response.End(); 

How to download pdf file from server not on database only on server - Simplest way

//only two lines code is required that is uncommented

//Response.Clear(); // This is i am not using because response.clear is used for clearing http response (like text) but this is a file that is presently on server. Also when we create pdf of text file than we use clear function and we are getting pdf file from database (binary fromat) Response.buffer is default true so we don't need.

 Response.AddHeader("content-disposition", "attachment; filename=t.pdf"); 

 //Response.ContentType = System.Net.Mime.MediaTypeNames.Application.Pdf; 

        //"application/octet-stream"; 

        Response.WriteFile(Server.MapPath("~/App_Data/Annexure.pdf")); // File must be there on server otherwise it will give error

//Response.end is also we are not using because we are not creating pdf file , if we create pdf file or we are getting from database than we use Response.End and Response.Clear() functions.

Response.WriteFile or Response.TransmitFile use in asp.net c# - how to view pdf or text file in web browser

 It is used to show the content of any file in web browser.  This  is same as response.write but it will write the content of the file to web page. Mainly it is used to view the file content not to download the file.  Both Response.WriteFile or Response.TransmitFile  are same

example if text file than use code below

For PDF file

Response.ContentType = System.Net.Mime.MediaTypeNames.Application.Pdf;

Response.WriteFile(Server.MapPath("~/App_Data/Annexure.pdf"));

For txt file

Response.Clear(); 

     

        Response.ContentType = System.Net.Mime.MediaTypeNames.Text.Plain;  and use Text.html

        //"application/octet-stream"; 

        Response.WriteFile(Server.MapPath("~/App_Data/yash.txt"));

        Response.End(); 

or on page load, simply we can show the content of text file

Response.WriteFile("~/App_Data/" + fileName);

Website admin tool - access rules for files and folders

Access rules are store in web.config for each folder

example like below:-

<?xml version="1.0" encoding="utf-8"?>

<configuration>

    <system.web>

        <authorization>

            <allow roles="Administrator" />

          <deny users="*" />

        </authorization>

    </system.web>

</configuration>

How to download the file using handler in asp.net c# of any format or extension - using anchor tag

  public void ProcessRequest(HttpContext context)

  {

    if (context.User.Identity.IsAuthenticated)

    {

      string filename = context.Request.QueryString["File"];

      //Validate the file name and make sure it is one that the user may access

      context.Response.Buffer = true;

      context.Response.Clear();

      context.Response.AddHeader("content-disposition", "attachment; filename=" + filename);

      context.Response.ContentType = "application/octet-stream";

//File(HelloWorld.txt) should be present on server in App_Data folder , otherwise it will show error

      context.Response.WriteFile("~/App_Data/" + filename);

    }

  }

aspx page

<a href="MyFileHandler.ashx?File=HelloWorld.txt">Click Here to Get File</a>

or 

 string fileName = context.Request.Params["File"];

 context.Response.ContentType = System.Net.Mime.MediaTypeNames.Application.Pdf; //"application/pdf"

//File(HelloWorld.txt) should be present on server in App_Data folder , otherwise it will show error

 context.Response.WriteFile("~/App_Data/" + fileName);

How to download the file using transmitfile function in asp.net c#

 Response.ContentType = "application/pdf";

Response.AppendHeader("Content-Disposition", "attachment; filename=MyFile.pdf");

//MyFile.pdf should be present in Files folder on server. other wise it will show error file not found.

Response.TransmitFile(Server.MapPath("~/Files/MyFile.pdf"));

Response.End();

reference:-https://www.c-sharpcorner.com/UploadFile/afenster/how-to-download-a-file-in-Asp-Net/

why Http Handler are used - Introduction to handler

 Http handlers are used for

Binary files

Dynamic image views

Performance-critical web pages

XML files

Minimal web pages

and these are fast and it only gives minimum response. example when you write  

Response.ContentType = "text/plain";

         //MediaTypeNames.Text.Plain

in aspx page it will give lot of information.

and when you write this in handler it will give only specific information that you want.

Also no return type of processrequest funtion in http handler

you can create other return type function in handler and also create model in handler.

Computer vs television - difference between computer and television

 Computer is having data and english hindi lanuguage all time. and text is very small

but in television we have visual things , and text is very large if it had

How to split the comma separated string to list of array in C#

string tags = "9,3,12,43,2"

 tags.Split(',').Select(int.Parse).ToList();

How to convert bytes to string and string to bytes in c#

 

        string author = "Mahesh Chand";

        // Convert a C# string to a byte array

        byte[] bytes = Encoding.ASCII.GetBytes(author);

        foreach (byte b in bytes)

        {

            Response.Write(b );

            Response.Write(Environment.NewLine);                       

        }

bytes to string

string myString = Encoding.ASCII.GetString(bytes);

Response.Write(str);

How to convert bytes to base64string in c#

using fileupload control

 Convert.ToBase64String(fileUpload1.FileBytes);

using memory stream

 Stream fs = fileUpload1.PostedFile.InputStream;

        BinaryReader br = new BinaryReader(fs);

        

        Byte[] bytes = br.ReadBytes((int)fs.Length);

 Convert.ToBase64String(bytes );

base64 string meaning

the upper- and lower-case Roman alphabet characters (A–Z, a–z), the numerals (0–9), and the "+" and "/" symbols, with the "=" symbol as a special suffix code

How to save bytes data to image

using memory stream

MemoryStream m = new MemoryStream(bytes); 

System.Drawing.Image MyImage = System.Drawing.Image.FromStream(m);

MyImage.Save(filepathandname)

====================

using fileupload control

fileUpload1.FileBytes;

string filepathandname = Server.MapPath(string.Format("~/uploads/{0}-{1}.{2}", DateTime.Now.ToShortDateString(), Guid.NewGuid(), ".png"));

MyImage.Save(filepathandname)

How to save a file to binary data to varbinary sql server in asp.net c# - How to save file to database with varbinary(max) datatype

Using fileupload field

byte[] bb = fileUpload1.FileBytes;

  SqlConnection con = new SqlConnection(ConnectionString.ConString);

            con.Open();

            SqlCommand cmd = new SqlCommand("INSERT INTO UploadFiles (FileData, ContentType) VALUES (@filedata, @ContentType)", con);

            cmd.CommandType = System.Data.CommandType.Text;

            

            

            cmd.Parameters.AddWithValue("@FileData", fileUpload1.FileBytes);

            cmd.Parameters.AddWithValue("@ContentType", fileUpload1.PostedFile.ContentType);

            cmd.ExecuteNonQuery();

            con.Close();

===============================

using binary reader

 Stream fs = fileUpload1.PostedFile.InputStream;

        BinaryReader br = new BinaryReader(fs);

        

        Byte[] bytes = br.ReadBytes((int)fs.Length);

  Stream fs = fileUpload1.PostedFile.InputStream;

 Byte[] bytes = br.ReadBytes((int)fs.Length);

object vs instance - object instance - instance vs object in c#

 object are also called instance.

Fundamental unit of data

 Fundamental unit of data in computer is bit or binary digit  0, 1

how to convert byte array to image in asp.net

Byte[] bytes =  fileUpload1.FileBytes;

  MemoryStream m = new MemoryStream(bytes);

     System.Drawing.Image MyImage = System.Drawing.Image.FromStream(m);            

            string filepathandname = Server.MapPath(string.Format("~/uploads/{0}-{1}-{2}", DateTime.Now.ToShortDateString(), Guid.NewGuid(), ".png"));

            MyImage.Save(filepathandname);

How to see or view a base 64 image file or image file in HTML page and how to see image file base 64 with URL - How to view image in html page

 <img src="data:image/png;base64,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

If error occurs in visual studio that iisexpress.exe access is denied and you build the web site it shows no error but it is having error

Than Run visual studio as administrator 

Web api get post delete and put difference in apicontroller class

 public class ValuesController : ApiController

{

  //For get all data

    public IEnumerable<BookMaster> Get()

    {

           }

    

   

//For get by ID

    public void Get(int id)

    {

        }

        

    [HttpPost] // insert or add or create new

    public string Post([FromBody]string value)

    {

        return value;

    }

    // PUT api/<controller>/5    update

        public void Put(BookMaster bookMaster) 

    {    

    }

    // DELETE api/<controller>/5

    [HttpDelete]

    public void Delete(int id)

    {

    }

How to use ObjectDataSource in asp.net with Model or business object and controller or login layer

 >Add object datasource from controls in visual studio

> Add TypeName Property(class name .cs file) where you have get, update and delete methods.

>Click on configure data source and select dataset or typename file and you will get select insert update delete methods and click on finish and use this object datasource id in grid view or other controls. 

bulk insert with single insert query in sql

 INSERT INTO tbl_name (a,b,c) VALUES(1,2,3),(4,5,6),(7,8,9);

Transaction in asp.net c#

 https://learn.microsoft.com/en-us/aspnet/web-forms/overview/data-access/working-with-batched-data/wrapping-database-modifications-within-a-transaction-cs

A network-related or instance-specific error occurred while establishing a connection to SQL Server. Error

>First open services.msc from wondow + r (Window Services)

> Then right click on sql server (SQL express)

>go to Properties. 

Then go to Log On tab and select Local System account. 

Click on Ok button and start the service.