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'System.Windows.Input.KeyEventHandler' to 'System.Windows.Forms.KeyEv

[es] :: .NET :: 'System.Windows.Input.KeyEventHandler' to 'System.Windows.Forms.KeyEv

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mladenmp

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icon 'System.Windows.Input.KeyEventHandler' to 'System.Windows.Forms.KeyEv19.10.2016. u 17:06 - pre 90 meseci
Error CS0029 Cannot implicitly convert type 'System.Windows.Input.KeyEventHandler' to 'System.Windows.Forms.KeyEventHandler'
Pozdrav svima posle dužeg vremena.

Imam jednu WPF aplikaciju koja radi kao barkod čitač.
Imam drugu aplikaciju (WIN Forms) u koju treba da implmentiram bar kod čitač.
I za kraj, imam grešku iz naslova :)

Evo i koda:
Ovdje prijavljuje grešku:
Code:

 public cashier()
        {
            InitializeComponent();

          
            this.PreviewKeyDown += new System.Windows.Input.KeyEventHandler(cashier_PreviewKeyDown);
            this.PreviewKeyUp += new System.Windows.Input.KeyEventHandler(cashier_PreviewKeyUp);
           
        }

Ovo su funkcije:
Code:

 public void cashier_PreviewKeyUp(object sender, System.Windows.Input.KeyEventArgs e)
        {
            if (e.Key == Key.LeftCtrl)
            {
                mLeftCtrlDown = false;
            }
            else if (mScanning)
            {
               
                e.Handled = true;
                if (e.Key == Key.LeftShift || e.Key == Key.RightShift)
                {
                   
                    mScanShiftDown = false;
                }
            }
            listBox1.Items.Add("Up: " + e.Key.ToString());
        }

        public void cashier_PreviewKeyDown(object sender, System.Windows.Input.KeyEventArgs e)
        {
           
            if (e.Key == Key.LeftCtrl)
            {
                mLeftCtrlDown = true;
                e.Handled = true;
            }
            else
            {
                if (mScanning)
                {
                   
                    e.Handled = true;
                    if (e.Key == Key.LeftShift || e.Key == Key.RightShift)
                    {
                        mScanShiftDown = true;
                    }
                    else if (mLeftCtrlDown && e.Key == Key.C)
                    {
                        mScanning = false;
                        // listBox2.Items.Add(mScanData.ToString());
                        textBox1.Text = mScanData.ToString();
                    }
                    else
                    {
                        string xChar = mScanKeyConverter.ConvertToString(e.Key);
                        if (!mScanShiftDown)
                        {
                            xChar = xChar.ToLower();
                        }
                        mScanData.Append(xChar);
                    }
                }
                else
                {
                    if (mLeftCtrlDown && e.Key == Key.B)
                    {
                        mScanning = true;
                        mScanData.Clear();
                        mScanShiftDown = false;
                        e.Handled = true;
                    }
                }
            }
            listBox1.Items.Add("Down: " + e.Key.ToString());
      }



Je li mi može neko pomoći oko rješavanja ove greške?




[Ovu poruku je menjao mladenmp dana 20.10.2016. u 23:38 GMT+1]
 
Odgovor na temu

mmix
Miljan Mitrović
Profesorkin muz
Passau, Deutschland

SuperModerator
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Poruke: 6041



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icon Re: Cannot implicitly convert type 'System.Windows.Input.KeyEventHandler'19.10.2016. u 17:51 - pre 90 meseci
WPF i Winforms ne mogu da se mesaju, bar ne na ovaj nacin.

Moj savet ti je da portujes taj deo koda za barcod citac u WinForms.




Sloba je za 12 godina promenio antropološki kod srpskog naroda. On je od jednog naroda koji je bio veseo, pomalo površan, od jednog naroda koji je bio znatiželjan, koji je voleo da vidi, da putuje, da upozna,
od naroda koji je bio kosmopolitski napravio narod koji je namršten, mrzovoljan, sumnjicav, zaplašen, narod koji se stalno nešto žali, kome je stalno neko kriv… - Z.Đinđić
 
Odgovor na temu

mladenmp

Član broj: 193827
Poruke: 51
*.cable.globalnet.hr.

Jabber: info@mladenmp.ml
Sajt: www.mladenmp.ml


+1 Profil

icon Re: 'System.Windows.Input.KeyEventHandler' to 'System.Windows.Forms.KeyEv20.10.2016. u 22:38 - pre 90 meseci
Hvala mmix !

Rijeseno:

Code:

 public cashier()
        {
            InitializeComponent();

          
            this.KeyDown += cashier_PreviewKeyDown;
            this.KeyUp += cashier_PreviewKeyUp;
           
        }
void cashier_PreviewKeyUp(object sender, System.Windows.Forms.KeyEventArgs e)
        {
            if (e.KeyCode == Keys.LControlKey)
            {
                mLeftCtrlDown = false;
            }
            else if (mScanning)
            {
                
                e.Handled = true;
                if (e.KeyCode == Keys.LShiftKey || e.KeyCode == Keys.RShiftKey)
                {
                   
                    mScanShiftDown = false;
                }
            }
            listBox1.Items.Add("Up: " + e.KeyCode.ToString());
        }

        void cashier_PreviewKeyDown(object sender, System.Windows.Forms.KeyEventArgs e)
        {
           
            if (e.KeyCode == Keys.LControlKey)
            {
                mLeftCtrlDown = true;
                e.Handled = true;
            }
            else
            {
                if (mScanning)
                {
                   
                    e.Handled = true;
                    if (e.KeyCode == Keys.LShiftKey || e.KeyCode == Keys.RShiftKey)
                    {
                        mScanShiftDown = true;
                    }
                    else if (mLeftCtrlDown && e.KeyCode == Keys.C)
                    {
                        mScanning = false;
                        textBox1.Text = mScanData.ToString();
                      
                    }
                    else
                    {
                        string xChar = mScanKeyConverter.ConvertToString(e.KeyCode);
                        if (!mScanShiftDown)
                        {
                            xChar = xChar.ToLower();
                        }
                        mScanData.Append(xChar);
                    }
                }
                else
                {
                    if (mLeftCtrlDown && e.KeyCode == Keys.B)
                    {
                        mScanning = true;
                        mScanData.Clear();
                        mScanShiftDown = false;
                        e.Handled = true;
                    }
                }
            }
            listBox1.Items.Add("Down: " + e.KeyCode.ToString());
        }

 
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[es] :: .NET :: 'System.Windows.Input.KeyEventHandler' to 'System.Windows.Forms.KeyEv

[ Pregleda: 1613 | Odgovora: 2 ] > FB > Twit

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Lista poslednjih: 16, 32, 64, 128 poruka.