Finding another job can be so cumbersome that it can turn into a job itself. Prepare well for the job interviews to get your dream job. Here's our recommendation on the important things to need to prepare for the job interview to achieve your career goals in an easy way. Windows Forms is one of the powerful windows applications. It offers an empty board where you can add your application code and modify the data. It is done in Visual Studio. Candidates should have basic knowledge on how this is done in order to get a job. Certifications exams available to increase competency. Follow our Wisdomjobs page for Windows Forms job interview questions and answers page to get through your job interview successfully in first attempt.
Answer :
First time insert five columns but two columns are empty Value that’s null value when we click another button update Query is used insert remaining columns (where condition Filled columns value).
Answer :
For inti As Integer = 0 To ComboBox1.Items.Count
For intj As Integer = 0 To ComboBox2.Items.Count
If ComboBox1.Items (inti).ToString = ComboBox2.Items (intj).ToString Then MessageBox.Show (ComboBox1.Items(inti))
End If
Next
Next
Question 3. How To Create A Set Up In Vb.net For Desktop Application Please Say Steps With Examples?
Answer :
File System on Target Machine.
Different Editors in Setup project:
Question 4. Explain Something About Crystal Report In Brief?
Answer :
Crystal Reports provides broad data connectivity options making it easy to access enterprise data and satisfy end user information requirements.
If u want to use your own SQL commands use the query generation in Crystal Reports.
Question 5. Write A Program To Create Login Form?
Answer :
The following example demonstrates how to use a Login Control to provide a user interface to log on to a Web site With sql server database.
VB : Imports System. Data , Imports System.Data.SqlClient and Imports System.Web.Configuration , C# : using System. Data; , using System.Data.SqlClient; and using System.Web.Configuration;
1. xml file or web. Config
provider Name="System.Data.SqlClient"/>
2. how-to-login-with-sql-server-c.aspx (Design Page)
<%@ Page Language="C#" AutoEventWireup="true" Code File="how-
to-login-with-sql-server-c.aspx.cs"
Inherits="how_to_login_with_sql_server_c" %>
Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-
transitional.dtd">
how to login with sql server database:
Back Color="#FFFBD6" Border Color="#FFDFAD" Border Padding="4"
Border Style="Solid" Border Width="1px" Font-
Names="Verdana" Font-Size="0.8em"
Fore Color="#333333"
On Authenticate="Login1_Authenticate" TestLayout="TextOnTop"
Width="293px"
Height="172px">
Bold="True" Font-Size="0.9em"
Fore Color="White" />
Fore Color="Black" />
Border Color="#CC9966" Border Style="Solid" Border Width="1px"
Font-Names="Verdana" Font-Size="0.8em"
Fore Color="#990000" />
3. how-to-login-with-sql-server-c.aspx.cs (Code Behind
C# Language)
using System;
using System.Collections;
using System. Configuration;
using System. Data;
using System.Linq;
using System. Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System. Data;
using System.Data.SqlClient;
using System.Web.Configuration;
public partial class how_to_login_with_sql_server_c :
System.Web.UI. Page
{
protected void Login1_Authenticate(object sender,
AuthenticateEventArgs e)
{
string username = Login1.UserName;
string pwd = Login1.Password;
string str Conn;
str Conn = WebConfigurationManager.ConnectionStrings
["ConnectionASPX"].Connection String;
SqlConnection Conn = new SqlConnection(strConn);
Conn. Open ();
String sqlUserName;
SqlUserName = "SELECT Username, Password FROM
Username ";
SqlUserName += " WHERE (Username ='" + username
+ "')";
SqlUserName += " AND (Password ='" + pwd + "')";
SqlCommand com = new SqlCommand (sqlUserName, Conn);
String Current Name;
Current Name = (string) com.ExecuteScalar ();
if (Current Name != null)
{
Session["User Authentication"] = username;
Session. Timeout = 1;
Response.Redirect("how-to-StartPage.aspx");
}
else
{
Session["User Authentication"] = "";
}
}
}
Question 6. Explain How To Add Resources During Runtime?
Answer :
Call the GetLocalResourceObject or GetLocalResourceObject method to read specific resources from a global or local resource file.
The GetLocalResourceObject method takes the name of a resource class and the resource ID. The class name is based on the .resx file name. For example, the file. WebResources.resx, and all associated localized files, are referenced by the class name Web Resources.
The GetLocalResourceObject method takes a resource name representing a Resource Key property.
Button1.Text = GetLocalResourceObject("Button1.Text").ToString();
Button2.Text = (String)GetLocalResourceObject(
"WebResourcesGlobal", "Button2.Text");
A local default resource file stored in the special App_LocalResources folder is named according to the ASP.NET page. For example, if the following code is used in a Default.aspx page, the resource file must be named Default.aspx.resx. For this example, add a string resource to this file named Button1.Text with the value "Found Resources".
A global default resource file that is stored in the special App_LocalResources folder is named WebResourcesGlobal.resx. Add a string resource named LogoUrl with the value "Found Resources".
Question 7. Explain How To Net Forms The Windows?
Answer :
Windows Forms: is the name given to the graphical application programming interface (API) included as a part of Microsoft .NET Framework, providing access to native Microsoft Windows interface elements by wrapping the extant Windows API in managed code.
Question 8. Where To Use New Keyword Other Than Create Instance?
Answer :
Hiding of base class method (non abstract method) can be done just by giving an implementation in the derived class. The "new" keyword is not necessary. You can add the "new" keyword to prevent a warning message during compilation.
Question 9. How To Split A Column Header In Gridview Using C#.net?
Answer :
This can be done at client side, if u have a fixed format by, creating a html table format in grid's "header template" and in item template.
Question 10. How To Find The Current Record Position In Data Control?
Answer :
Absolute Position.
Question 11. How Many Number Of Events Does The Timer Controls?
Answer :
2 events, one is disposed , second one is tick event.
Question 12. Which Property Is Used To Lock A Text Box To Enter Data?
Answer :
Textbox. Enabled = True;
This property is used to lock the text box to enter data.
Question 13. What Is The Need Of Z-order Method?
Answer :
Ex:
1234
5678
9065
call Z order method to pass order.
For ex: pass 3 then output is 1396 to Access four corner of the z order.
Question 14. What Is The Difference Between List Index And Tab Index?
Answer :
List index : This property is used to check the index value of the items in the List box.
Tab index : This property is used to set the flow of controls in the form when we press the tab button.
Question 15. Which Property Of Menu Cannot Be Set At Run Time?
Answer :
Item property cannot be set at runtime.
Question 16. What Is The Difference Between List Box And Combo Box?
Answer :
Question 17. What Are The New Events In Text Box That Has Been Included In Vb?
Answer :
validate event to control.
Question 18. How Insert Record In The Database?
Answer :
insert into <table_name> values (Parm1,parm2....).
Question 19. How Save Rerecord In The Database?
Answer :
Dim Query
Query="insert into Table_name(username)values('" & txt_username.text & "')".
Dim cmd as sqlclient.sqlcommand=new sqlclient.sqlcommand(Query, connection) cmd.ExecuteNonquery().
Question 20. How Bar Code Create In The Report?
Answer :
E.g Bar is field that contain digit from 1 to 8 as shown below:
*12345678*
After changing font these digit were converted into Black
Lines mean barcode
|||||||||||||||
5-Take print of barcode and enjoy.
Question 21. How To Get Records From A Database?
Answer :
You have to get the "dot net driver" of the database (or any other DataSource) you want to access to.
For example:
Mysql: Connector/Net
Access: Microsoft Access Driver
Oracle: Oracle Data Access Components (ODAC)
Afterwards you build a connection string to tell your Program which driver you want to use and where the dataSource can be found.
for example:
Public const string DB_CONN_STRING = "Driver={Microsoft Access Driver (*.mdb)}; "+ "DBQ=D: CSTestDbReadWriteSimpleTest.mdb";
Afterwards you just have to open a connection to the database using the previously created connection string and send a query to the database to get the record:
ADO Connection conn = new ADO Connection (DB_CONN_STRING);
Conn. Open ();
ADODataReader dr;
ADO Command cmd = new ADO Command ( "SELECT * FROM
", Conn);
Cmd. Execute (out dr);
while (dr.Read()){
....}
Windows Forms Related Tutorials |
|
---|---|
XML Tutorial | LINQ Tutorial |
Windows Presentation Foundation(WPF) Tutorial | MVVM Tutorial |
Windows Communication Foundation (WCF) Tutorial |
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