Gridviw - my rowCommand does not run - C# Discussion Boards

30-Jun-08 1:05

hi

In a Forum we Help people Who got Stuck while Attempted to do something. You did not Attempt anything and you did not Attempt to make a reseasrch on Google on what is needed to build a POS System. please Next time Google before you ask Questions or else you will get negavite answers from other members

http://www.google.co.za/search?hl=en&q=How+to+Build+a+Pos+System+in+C%23&meta=[^]

Hope it helps

Vuyiswa Maseko,

Sorrow is Better than Laughter, it may Sadden your Face, but It sharpens your Understanding

VB.NET/SQL7/2000/2005
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Re: c# point of sale

Harvey Saayman30-Jun-08 2:19

30-Jun-08 2:19

who the hell do you think you are??

we WILL NOT do your work for you! this forum is for help on specific issues you encounter, not for you to demand code.

please read THIS[^] before you post here again... then you might get a helpful answer. if you don't you'll only get shouted at again

Harvey Saayman - South Africa
Junior Developer
.Net, C#, SQL
you.suck = (you.passion != Programming)

Re: c# point of sale

Harvey Saayman30-Jun-08 2:43

How can I open a hyperlink in a link click from my form in C#.net [modified]

30-Jun-08 2:43

i was shocked when i looked at your previous posts in this forum, so i decided to to give you some step by step pointers

1. Learn to speak English, its not my first language either, but there is nothing hard about it.

2. Get off your ass and try doing something yourself! no one here or anywhere else will do your work for you

3. Buy some programming books and read them.

4. learn some manners, don't demand that we send you code

this is guaranteed to work, you will become a great programmer if you follow this guide. but somehow i doubt that you will Mad | :mad:

Harvey Saayman - South Africa
Junior Developer
.Net, C#, SQL
you.suck = (you.passion != Programming)

Anu Palavila30-Jun-08 0:47

Anu Palavila

30-Jun-08 0:47

Hi In my C#.net Inventory application in my contact us form I want to place our company website name and when clicked, it must be opened in a web page

Thanks & Regards

modified on Monday, June 30, 2008 7:29 AM

Re: How can I open a hyperlink in a link click from my web form

Vimalsoft(Pty) Ltd30-Jun-08 1:08

Re: How can I open a hyperlink in a link click from my form in C#.net

30-Jun-08 1:08

Hi
Take time and Explain Exacly what you want.

Thanks

DaveyM6930-Jun-08 1:26

DaveyM69

30-Jun-08 1:26

Add a LinkLabel in the designer or through code.
Set Text and Tag properties in the designer or in code:

linkLabel1.Text = "Code Project";
linkLabel1.Tag = "www.codeproject.com";

Add a Click event handler to your LinkLabel and in it put:

System.Diagnostics.Process.Start((string)linkLabel1.Tag);

Dave

Re: How can I open a hyperlink in a link click from my form in C#.net

Thomas Stockwell30-Jun-08 4:51

Thomas Stockwell

30-Jun-08 4:51

I didn't think of that type of concept for the Tag property.

kudos

Regards,
Thomas Stockwell

Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning.

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Gridviw - my rowCommand does not run

simsen30-Jun-08 0:42

simsen

30-Jun-08 0:42

Hi,

I have a gridview, with a rowcommand. When I try to debug I can see it dosn't call the rowCommand (DeleteImage) Please can anyone tell me, why it does not run that rowCommand?

my code:

<asp:GridView ID="grdImages" runat="server" AutoGenerateColumns="false" 
                            AutoGenerateEditButton="false" BorderColor="Transparent" 
                        CellPadding="2" GridLines="vertical" 
                            CellSpacing="0" DataKeyNames="filename"
                            ForeColor="Black"
                            ShowHeader="false" onsorting="grdImages_Sorting" 
                        onrowcommand="grdImages_RowCommand">
                        <RowStyle BorderStyle="Dotted" />
                        <Columns>            
                            <asp:TemplateField>
                                <ItemTemplate>
                                    <img src='<%#Eval("imgImage")%>' alt="Image" width="50px" height="50px" />
                                </ItemTemplate>
                            </asp:TemplateField>
                            <asp:TemplateField>
                                <ItemTemplate>
                                    <asp:Label ID="filename" runat="server" Text='<%#Eval("filename")%>'></asp:Label>
                                </ItemTemplate>
                            </asp:TemplateField>
                            <asp:TemplateField>
                                <ItemTemplate>                               
                                    <asp:Button CssClass="buttonsSmall" ID="btnDeleteImage" OnClientClick="return confirm('Billedet vil ikke længere kunne vises på livesitet. Er du sikker på, du vil slette billedet?');" Font-Size="8pt" runat="server" Text="Slet" CommandName="DeleteImage" CommandArgument='<%# Eval("filename")%>'  />
                                </ItemTemplate>
                                <HeaderStyle />
                                <ItemStyle HorizontalAlign="Center" />
                            </asp:TemplateField>
                        </Columns>
                        <RowStyle CssClass="rowcolor" />
                        <AlternatingRowStyle CssClass="alternatingrowcolor" />        
                    </asp:GridView>


protected void grdImages_RowCommand(object sender, GridViewCommandEventArgs e)
    {
        if (e.CommandName == "DeleteImage")
        {
            int imagename = Convert.ToInt32(e.CommandArgument);
            string imagepath = Convert.ToString(Session["uploadpath"]);

            File.Move(imagepath + '/' + imagename, Constants.ImageRecycleBin.UploadPath + imagename);

            //Opdaterer gridview
            LoadImages(Convert.ToString(Session["uploadpath"]), "filename", "ASC");
        }
    }

Said with other words, when I hit the button in the gridview only the javascript event fires, not the RowCommand. I have tried to remove the javascript event with no success......
Kind regards,

simsen Smile | :)

Re: Gridviw - my rowCommand does not run

simsen30-Jun-08 0:54

simsen

30-Jun-08 0:54

DOHHHHHHH..... In my pageload event I updated the gridview without a (!IsPostBack).........

System.Diagnostics.Process used to start a c++ makefile ! Big issue !

ozzox30-Jun-08 0:37

ozzox

30-Jun-08 0:37

Hi guys,

I'm working on a c# tool to batch some compilation of different c++ projects
So evrything work fine except that I can't redirect the standard output for this command (it works for a simple dir c Smile | :)

For ex, this the code I use:

Process p = new System.Diagnostics.Process();
p.StartInfo = new ProcessStartInfo();
p.StartInfo.FileName = @"make.exe";
p.StartInfo.Arguments = "BUILD=release";
p.Start();

This works and open a cmd window
But I need to output the result in my c# app but when I enable the standard redirection like this

p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.UseShellExecute = false;

The process get stucked (the make process is started but it doesnt seem to do anything)

I have a do/while like this

do
{
if (!p.HasExited)
{
p.Refresh();
Console.WriteLine("  total processor time: {0}",
                        p.TotalProcessorTime);
}
} while (!p.WaitForExit(1000));

In fact the processor time is always null (0)

I also try these options but no more results:

p.EnableRaisingEvents = true;
p.StartInfo.CreateNoWindow = true;

Any ideas ???
Thanks in advance !

Re: System.Diagnostics.Process used to start a c++ makefile ! Big issue !

Daniel Grunwald30-Jun-08 2:24

Daniel Grunwald

30-Jun-08 2:24

You are redirecting standard output.
As soon as make fills the output buffer, it will pause and wait until you read from the standard output.
So you have a deadlock there, make is waiting for your process to consume output, and your process is waiting for make to finish. You need to start reading output right away after starting the make process.

Re: System.Diagnostics.Process used to start a c++ makefile ! Big issue !

ozzox30-Jun-08 15:43

ozzox

30-Jun-08 15:43

yeah I finally used the async method and it works:
just added my event handler on OutputDataReceived and ErrorDataReceived

thx guys !

Re: System.Diagnostics.Process used to start a c++ makefile ! Big issue !

leppie30-Jun-08 5:10

leppie

30-Jun-08 5:10

Is the PATH env var set correctly?
Is the working directory set correctly?
What happens when you run this with out hiding the console, do you get the correct result?

Once you have verified the above, then start hiding the console, else you will just struggle forever.

xacc.ide - now with TabsToSpaces support
IronScheme - 1.0 alpha 4a out now (29 May 2008)

Weird data bindings issue

Harvey Saayman30-Jun-08 0:22

Re: Weird data bindings issue

30-Jun-08 0:22

hey guys...

on a form ive got 5 comboBoxes, they should all have the same data bound to them & this is how i do it

private void dataBindTimeCatComboBoxes()
{
    //create a new dataset 
    DataSet dataSet = new DataSet();

    //create sql command
    SqlCommand selectCommand = new SqlCommand("Proc_SelectTimeCategoryName", sqlConn);
    selectCommand.CommandType = CommandType.StoredProcedure;

    //create data adapter
    SqlDataAdapter dataAdapter = new SqlDataAdapter();
    dataAdapter.SelectCommand = selectCommand;
    //Fill the dataset
    dataAdapter.Fill(dataSet, "tCat");

    DataTable tCatTable = dataSet.Tables["tCat"];


    //
    // Data Bind the combo boxes
    //
    comboBox2.DataSource = tCatTable;
    comboBox2.DisplayMember  = "TCat_Name_VC30";
    comboBox2.ValueMember = "TCat_ID_SI";

    comboBox3.DataSource = tCatTable;
    comboBox3.DisplayMember = "TCat_Name_VC30";
    comboBox3.ValueMember = "TCat_ID_SI";

    comboBox4.DataSource = tCatTable;
    comboBox4.DisplayMember = "TCat_Name_VC30";
    comboBox4.ValueMember = "TCat_ID_SI";

    comboBox5.DataSource = tCatTable;
    comboBox5.DisplayMember = "TCat_Name_VC30";
    comboBox5.ValueMember = "TCat_ID_SI";

    comboBox6.DataSource = tCatTable;
    comboBox6.DisplayMember = "TCat_Name_VC30";
    comboBox6.ValueMember = "TCat_ID_SI";
}

the data does get bound, but the weird part is when i select a value in any one of the combo boxes ALL the combo boxes selected items change to that...

any ideas as to why? i really dont feel like making separate data sources for each one, it'll be redundant cuz all the combos have the same data.... but them sharing the same data source is the only reason that i can see for this strange behavior.

thanx

Harvey Saayman - South Africa
Junior Developer
.Net, C#, SQL
you.suck = (you.passion != Programming)

Vimalsoft(Pty) Ltd30-Jun-08 0:58

Re: Weird data bindings issue

30-Jun-08 0:58

Good Afternoon HarveySaayman

Well if you want your Combobox to Display data from one Data Source , it will be Simple, but the Behavior of Combox boxes in the Form will do , that am not sure why, but if you a for example searching based on what is selected , it will not give you a Problem, dont worry about it, i have never experienced a problem before and i understand what you mean. and if you want to bind your data fied to your Combobox, next time you can do it like this

private void dataBindTimeCatComboBoxes()
{
//create a new dataset     
DataSet dataSet = new DataSet();
//create sql command    
SqlCommand selectCommand = new SqlCommand("Proc_SelectTimeCategoryName", sqlConn); 
selectCommand.CommandType = CommandType.StoredProcedure;  
//create data adapter 
SqlDataAdapter dataAdapter = new SqlDataAdapter(); 
dataAdapter.SelectCommand = selectCommand;  
//Fill the dataset    
dataAdapter.Fill(dataSet, "tCat");      
//Data Bind the combo boxes    //   

//You Should Bind it like this 
/*
 * comboBox6.DataSource = datasetname;  
   comboBox6.DisplayMember = "Tablename.Field"; 
*/
comboBox2.DataSource = tCatTable;   
comboBox2.DisplayMember  = "tCat.TCat_Name_VC30";  

comboBox3.DataSource = tCatTable;  
comboBox3.DisplayMember = "tCat.TCat_Name_VC30";  

comboBox4.DataSource = tCatTable;  
comboBox4.DisplayMember = "tCat.TCat_Name_VC30";   

comboBox5.DataSource = tCatTable; 
comboBox5.DisplayMember = "tCat.TCat_Name_VC30";   

comboBox6.DataSource = tCatTable;  
comboBox6.DisplayMember = "tCat.TCat_Name_VC30"; 
}

Sometimes its not Necessaryto use datatable .remove that ValueMember property.

Hope it helps

Mbah Dhaim30-Jun-08 1:11

Mbah Dhaim

30-Jun-08 1:11

create n-th(according number of your combobox) instances of DataView based on your DataTable and bind each DataView to each combobox

i hope this will help

dhaim
program is hobby that make some money as side effect Smile | :)

Re: Weird data bindings issue

Harvey Saayman30-Jun-08 1:14

30-Jun-08 1:14

worked perfectly, thanx!

Harvey Saayman - South Africa
Junior Developer
.Net, C#, SQL
you.suck = (you.passion != Programming)

checkBox & ListView

laziale30-Jun-08 0:20

30-Jun-08 0:20

Hi guys! one question if someone can help me. I have a listview and a checkbox. When the app is started the listview is populated from one folder. When the checkbox is checked the listview is automatically populating from different folder. Now, I want when the user will uncheck the checkbox, the listview to be populated again from the first folder. Any help? Thx

Re: checkBox & ListView

Vimalsoft(Pty) Ltd30-Jun-08 1:00

30-Jun-08 1:00

hi

Lets see what you have done so far, We cannot help you if we cannot see the code.

Thanks

Re: checkBox & ListView

laziale30-Jun-08 1:19

Determine incorrect String.Format format

30-Jun-08 1:19

I have done this:

    RefreshView();

            FileSystemWatcher fsw = new FileSystemWatcher("C:\\Photos\\Preview");
            fsw.Changed += new FileSystemEventHandler(fsw_Changed);
            fsw.Deleted += new FileSystemEventHandler(fsw_Changed);
            fsw.Created += new FileSystemEventHandler(fsw_Changed);
            fsw.EnableRaisingEvents = true;


the RefreshView method:
            lvFiles.Items.Clear();
            string[] files = Directory.GetFiles("C:\\Photos\\Preview");
            foreach(string file in files)
            {
                lvFiles.Items.Add(file);
            }

so that is trigerred when the user is checking the checkBox. When the checkBox again is unchecked, then nothing is happening. There I want to retrieve again the previous folder, in this case("C:\\Photos")

Thx

Stevo Z29-Jun-08 23:59

Stevo Z

29-Jun-08 23:59

Hi All,

is there way (except running the method in try - catch block) how to determine (without considering the input arguments) if a format string is correct?

String.Format(string format, params object[] argumens);

thanks,

Stevo

zilo

Re: Determine incorrect String.Format format

PIEBALDconsult30-Jun-08 5:10

PIEBALDconsult

30-Jun-08 5:10

You could probably use a RegularExpression.

I'd stick with Try/Catch, as you'd likely need it anyway.

SQL connection execute what?

laziale29-Jun-08 23:13

Re: SQL connection execute what?

29-Jun-08 23:13

I want to update a row in my local DB, and what should I use for updating? with executeNonQuery() it doesn't work, or I am doing something else wrong? Here is the code:

string updateQuery = "UPDATE Credentials SET Username = '" + txtUser.Text + "', Password = '" + txtPass.Text + "', Address = '" + txtAddress.Text + "' WHERE Username='" + user + "', Password='" + pass + "', Address='" + address + "'";
           SqlCommand updateCom = con.CreateCommand();
           SqlDataAdapter adapter2 = new SqlDataAdapter();
           updateCom.CommandText = updateQuery;
           adapter2.SelectCommand = updateCom;
           DataSet updateDataSet = new DataSet();
           adapter2.Fill(updateDataSet, dataTableName);
           comm.ExecuteNonQuery();
           con.Close();

thx for the help

Christian Graus29-Jun-08 23:22

Christian Graus

29-Jun-08 23:22

Well, you know that this code is very insecure and easy to hack, right ?

What is con ? This does look messy to me. You don't need half of these objects, I am sure of that.

Here is an example I found with google:

Public Sub CreateMySqlCommand(myExecuteQuery As String, myConnection As SqlConnection)
Dim myCommand As New SqlCommand(myExecuteQuery, myConnection)
myCommand.Connection.Open()
myCommand.ExecuteNonQuery()
myConnection.Close()
End Sub 'CreateMySqlCommand

IT's VB.NET, but it's clear which objects you should use, how you should use them, and where you're getting confused.

Christian Graus

Please read this if you don't understand the answer I've given you. If you're still stuck, ask me for more information.

Re: SQL connection execute what?

laziale29-Jun-08 23:28