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    Help listBox C#

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    avatar
    javad1
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    Open Help listBox C#

    Post by javad1 on Tue Mar 11, 2014 4:17 pm

    Slm
    Mikham ke vaqti to listbox bish az 20id add shud msgbox error bede va bege ke bish az 20id add nashe.

    2. Mikham ye button bezarm vase add kardn txt id to listbox maslan age to listbox id bud va khastam dobare add konam ona khod be khod hazf beshan

    Tnx
    avatar
    SHAHIN
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    Open Re: Help listBox C#

    Post by SHAHIN on Tue Mar 11, 2014 7:25 pm

    in wase inke listbox be 20 ta resid message bede:

    Code:
    private void button1_Click(object sender, EventArgs e)
            {
                if (listBox1.Items.Count == 20)
                {
                    MessageBox.Show("bishtar az 20 ta nemishe add konid!","Error!");
                }
            }

    inam wase inke listbox ro pak kone:
    Code:
    private void button2_Click(object sender, EventArgs e)
            {
                listBox1.Items.Clear();
            }





    avatar
    Mehran Mahmoudi
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    Join date : 2013-09-06
    Age : 20
    Location : Iran , Qazvin , Qazvin

    Open Re: Help listBox C#

    Post by Mehran Mahmoudi on Tue Mar 11, 2014 7:56 pm

    Salam
    Dar Morede Soale Avvalet , Shoma Bayad Hamun Moghe Ke Dari Item Add Mikoni Check Koni Ke 20 Ta Nabashe ! Yani:
    Code:
                if (listBox1.Items.Count < 20)
                {
                    //listbox add kone
                }
                else
                {
                  //messageBox
                }
    Baraye Soale Dovvom Manzuret Ine Ke Iteme Tekrari Add Nashe?
    Age Are Ke Javabet Ine:
    Code:
    if(!listBox1.Items.Contains("mehran"))
    {
    listBox1.Items.Add("mehran");
    }
    Ba Code e Bala Goftim Age " mehran " Too Itemaye ListBox Nabud , Addesh Kone !
    Age Chize Bishtari Mikhay Begu !!
    Movafagh Bashi.






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    avatar
    javad1
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    Open Re: Help listBox C#

    Post by javad1 on Wed Mar 12, 2014 12:14 am

    Slm mehran
    Mehran man manzurm bra gozine 2 in ast ke ba zadan ro button ke jay txt idiha ra gozashti open mikunam to listbox add beshan kh0b. Badan mikham jaygozin kunam dobaro txt id open kunam idihaye qabli hazf beshan auto va idihaye jadid add beshan. Intori

    Shahin tnx vase gozine 1 alan test mikunam. Ama gozine 2 oni nist ke khastm. +
    avatar
    Mehran Mahmoudi
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    Open Re: Help listBox C#

    Post by Mehran Mahmoudi on Wed Mar 12, 2014 4:35 am

    Hi Again
    Soale Dovvomet Fekr Konam In Mishe:
    Usinge System.IO ro Ezafe Kon:
    Code:
    using System.IO;
    TO Buttonet:
    Code:
                try
                {
                    OpenFileDialog ofd = new OpenFileDialog();
                    ofd.Title = "Open a Backup - Mehran FTP Manager";
                    ofd.Filter = "Text (*.txt)|*.txt";
                    ofd.ShowDialog();
                    if (File.Exists(ofd.FileName))
                    {
                        var streamReader = new StreamReader(ofd.FileName);
                        lstFiles.Items.Clear();
                        do
                            lstFiles.Items.Add(streamReader.ReadLine());
                        while (streamReader != null);
                    }
                }
                catch { }
    Ham Az Halghe Do...While Mituni Estefade Koni Va Ham Az Halgheye While !! Man Inja Az Do...While Estefade Kardam , Baraye While Nahve Tarife Halghe Intori Mishe:
    Code:
                        while (streamReader != null)
                            lstFiles.Items.Add(streamReader.ReadLine());
    Age In Manzuret Nabood Ba Aks Begu !
    Movafagh Bashi.






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    avatar
    SHAHIN
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    Open Re: Help listBox C#

    Post by SHAHIN on Wed Mar 12, 2014 3:18 pm

    javad jan ghorboonet, sharmande yekam soalet vazeh nabood vagarna inam migoftam ok mikardam barat.






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    Open Re: Help listBox C#

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