I did my best, and coming here was my last choice.

Hi Expert, I have developed android program that save data on SQLite Database, I need to know where is the location of created database, furthermore, I need to save database file on the root of android device or on custom path, I don't need to save created file on hidden file. Regards, Ahmad

I need to design interface for prototype not for real implementation, then I will reflect this design into real application

I would like to use Tab bar, so if I use deprecated interface, is there any problem?

Hi, I need a free tool to design user interface for Android application. Regards,

Thank you, But I checked the link common navigation pattern in the same page, but I didn't find any code, it is just an information. Regards,

Hi Experts, I am a new to the android, and I am trying to work on Tab Action bar, but I find the below interface was deprecated , so what is the replacement, and what happen if I use deprecated interface?

ActionBar.TabListener
public static interface ActionBar.TabListener
android.support.v7.app.ActionBar.TabListener

Hi Expert, I am trying to add action bar to my application, but my application get crashed once added the following code.

    android.app.ActionBar actionbar = this.getActionBar();
    actionbar.setTitle("test")

; I am using android studio, here is the following information about my code, it is simple: .java file

import android.support.v4.app.NotificationCompat;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;

public class MainActivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity\_main);
    android.app.ActionBar actionbar = this.getActionBar();
    actionbar.setTitle("test");



 }

}

skd version

<uses-sdk android:minSdkVersion="11"
    android:targetSdkVersion="22" />

I cant add actionbar. Anyone can help please. Ahmad,

Thank you

Hi everybody, I am fresh in Java, I would like to be a Java Programmer, so Please advice me what is the required skills, recommended books, latest java technology. Regards,

Dear Expert, What are the principles of Internet download manager? How is it work? I am thinking to develop program like it, what is the suitable language? Regards,

Thanks for Help.

Dear Expert, I am in level 0 of android programming. I need to know how to start learning? What are the software used to build Android application? What is the latest software used to build the applications? Regards,

It is working, Thank you :)

Dear Experts, I have datagridView with tow columns. I use the below code to get value from Cell the cursor left, but when cursor left for first time, even if I filled a value, the message box give me "Blank" notjing, but if I returned to the cell and leave it again, then message give me the Value. I have searched in google, but with no result.

private void dataGridView1_CellLeave(object sender, DataGridViewCellEventArgs e)
{
string x = (string)dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Value;

        MessageBox.Show(x);

    }

Your help please. Ahmad,

Thank you Sir, I have tried your code, but I get the same error. Below is the exception message I received. The code works under Button_Cleck event.

System.NullReferenceException was unhandled
Message=Object reference not set to an instance of an object.
Source=ERP
StackTrace:
at ERP.frmCalendar.dataGridView1_CellLeave(Object sender, DataGridViewCellEventArgs e) in C:\Projects\ERP\ERP\GL\frmCalendar.cs:line 103
at System.Windows.Forms.DataGridView.OnCellLeave(DataGridViewCellEventArgs e)
at System.Windows.Forms.DataGridView.OnCellLeave(DataGridViewCell& dataGridViewCell, Int32 columnIndex, Int32 rowIndex)
at System.Windows.Forms.DataGridView.CommitEdit(DataGridViewCell& dataGridViewCurrentCell, DataGridViewDataErrorContexts context, DataGridViewValidateCellInternal validateCell, Boolean fireCellLeave, Boolean fireCellEnter, Boolean fireRowLeave, Boolean fireRowEnter, Boolean fireLeave)
at System.Windows.Forms.DataGridView.EndEdit(DataGridViewDataErrorContexts context, DataGridViewValidateCellInternal validateCell, Boolean fireCellLeave, Boolean fireCellEnter, Boolean fireRowLeave, Boolean fireRowEnter, Boolean fireLeave, Boolean keepFocus, Boolean resetCurrentCell, Boolean resetAnchorCell)
at System.Windows.Forms.DataGridView.CommitEditForOperation(Int32 columnIndex, Int32 rowIndex, Boolean forCurrentCellChange)
at System.Windows.Forms.DataGridView.ScrollIntoView(Int32 columnIndex, Int32 rowIndex, Boolean forCurrentCellChange)
at System.Windows.Forms.DataGridView.TabToNextCell()
at System.Windows.Forms.DataGridView.ProcessTabKey(Keys keyData)
at System.Windows.Forms.DataGridView.ProcessDialogKey(Keys keyData)
at System.Windows.Forms.Control.ProcessDialogKey(Keys keyData)
at System.Windows.Forms.TextBoxBase.ProcessDialogKey(Keys keyData)
at System.Windows.Forms.Control.PreProcessMessage(Message& msg)
at System.Windows.Forms.Control.PreProcessControlMessageInternal(Control target, Message& msg)
at System.Windows.Forms.Application.ThreadContext.PreTranslateMessage(MSG& msg)
at System.Windows.Forms.Application.ThreadContext.System.Windows.Forms.UnsafeNativeMethods.IMsoComponent.FPreTranslateMessage(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.Thread

Dear Experts, I am trying to get the value for current cell in DatagridView. I wrote code

dataGridView1[e.ColumnIndex, e.RowIndex].Value.ToString();

in CellLeave event. but the code raise an error. Object reference not set to an instance of an object. But if I write the code in Button_Click event, it is working properly. Please help. Ahmad

I wonder if I can use some classes to develop reports, I need a dynamic report, that user can request same report in multiple design.

Dear Expert, Is there any solution or Programming method to develop reports without using Crystal reports in C#. Ahmad

Thank you Sir.