.NET (Core and Framework)

31-May-10 17:57

performance when passing method parameters and return values

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Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

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passing information

kolisa31-May-10 0:14

kolisa

31-May-10 0:14

i am passing information from listbox to another listbox in a different form by just pass using system
this is the code i'm passing with
string[] items = new string[lstSelectedItems.Items.Count];
amoun = txtAmount.Text;
lstSelectedItems.Items.CopyTo(items, 0);
FrmOrderDetails order = new FrmOrderDetails(txtAmount.Text,items);
order.Show();

this is the code in a form that i want to accept the data am passing
string it;
private string totalprice;

public string Totalprice
{
get { return totalprice; }
set { totalprice = value; }
}
public FrmOrderDetails(string tprice, string[] items)
{

InitializeComponent();
it = items.ToString();
tprice = Totalprice;

private void FrmOrderDetails_Load(object sender, EventArgs e)
{
totalprice = txtTotalPrice.Text;
lstOrderDetails.Items.Add(it);
}

Henry Minute31-May-10 0:28

Henry Minute

31-May-10 0:28

And your question is?

Henry Minute

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kolisa31-May-10 0:44

kolisa

31-May-10 0:44

doesnt pass valid data

Henry Minute31-May-10 1:15

Henry Minute

31-May-10 1:15

The problem in your code is this

it = items.ToString();

line.

items.ToString() will give "System.String[]" (in other words a description of the Type you are using not its contents). Not what you want, I suspect.

Investigate the String.Join() method for one possible solution.

Luc Pattyn31-May-10 2:16

31-May-10 2:16

nowhere to be seen.

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Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

I only read formatted code with indentation, so please use PRE tags for code snippets.

I'm not participating in frackin' Q&A, so if you want my opinion, ask away in a real forum (or on my profile page).

Luc Pattyn31-May-10 2:17

.NET and XML: How can I read nested namespaces (<abc:xyz:name attr=“value”/>)?

31-May-10 2:17

ask a proper question and/or give precise symptoms, and please use PRE tags to show code snippets.

Maybe what you need is similar to

lb2.Items.Add(lb1.SelectedItems);

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

I only read formatted code with indentation, so please use PRE tags for code snippets.

I'm not participating in frackin' Q&A, so if you want my opinion, ask away in a real forum (or on my profile page).

Entrase29-May-10 5:35

Entrase

29-May-10 5:35

Suppose there is an element in XML data:

<abc:xyz:name attr="value"/>

I'm trying to read it with XmlReader. The problem is that I get XmlException that says:

The ‘:’ character, hexadecimal value 0x3A, cannot be included in a name

I have already declared "abc" namespace. I have also tried adding "abc:xyz" and "xyz" namespaces. But this doesn't help at all. I could replace some text before parsing but there may be some more elegant solution. So what should I do?

Here is my code:

XmlReaderSettings settings = new XmlReaderSettings()
NameTable nt = new NameTable();
XmlNamespaceManager nsmgr = new XmlNamespaceManager(nt);
nsmgr.AddNamespace("abc", "");
nsmgr.AddNamespace("xyz", "");
XmlParserContext context = new XmlParserContext(null, nsmgr, null, XmlSpace.None);

// So this reader can't read <abc:xyz:name attr="value"/>
XmlReader reader = XmlReader.Create(path, settings, context);

Re: .NET and XML: How can I read nested namespaces ()?

Kurt Evenepoel29-May-10 7:40

Kurt Evenepoel

29-May-10 7:40

Actually, .NET tells you what is wrong.

According to the XML 1.0 specification, a QName is a qualified or an unqualified name. A qualified name consist of a prefix, and this prefix is a NCName: it cannot contain colons (':').
So what you're asking would not be possible: it's not valid XML to begin with.

See also http://www.w3.org/TR/REC-xml-names/#Conformance[^], where it says :

It follows that in a namespace-well-formed document:

* All element and attribute names contain either zero or one colon;
* No entity names, processing instruction targets, or notation names contain any colons.

Nested XML namespaces are much simpler:
<an:elem><another:one></another:one></an:elem>

Returning data with a bound listbox

surfluds29-May-10 2:18

29-May-10 2:18

I have a form with a listbox bound to a sql database. I use a dataset to fill the listbox.
I need to have it multiselect and return the data selected. Trying to test this in a messagebox it returns dataview objects and mot the data selected.
Any ideas
Mike

Abhinav S29-May-10 3:53

Abhinav S

29-May-10 3:53

You need to use the SelectedItems property.

See here.

surfluds29-May-10 5:46

29-May-10 5:46

Thanks for that reply, I see that and have ammended my code as such, I am making headway though. I can now return the corect amount of selected items but it only returns the top item that many times.
Any ideas from virewing my code.

//Method used to add data to newly inserted rows
        private void AddData(System.Data.DataRow row, System.Data.DataRow row2)
        {
            StringBuilder strb = new StringBuilder();
            string str1 = "";

            object missing = System.Type.Missing;
            if ((checkBox1.Checked) || (checkBox2.Checked))
            {
                MessageBox.Show("There are no rows to insert");
            }
            else
            {
                //Add data from data row to the table
                Microsoft.Office.Interop.Word.Selection selection = Globals.ThisDocument.Application.Selection;
                int count = Globals.ThisDocument.Tables.Count;
                if (selection.Tables.Count > 0)
                {
                    Microsoft.Office.Interop.Word.Row newRow = Globals.ThisDocument.Tables[count].Rows.Add(ref missing);

                    newRow.Range.Font.Bold = 0;

                    newRow.Range.ParagraphFormat.Alignment =
                        Microsoft.Office.Interop.Word.WdParagraphAlignment.wdAlignParagraphLeft;

                    newRow.Cells[2].Range.ParagraphFormat.Alignment =
                        Microsoft.Office.Interop.Word.WdParagraphAlignment.wdAlignParagraphRight;

                    newRow.Cells[1].Range.Text = row["HSActionPlanSubHeader"].ToString();
                    foreach (DataRowView itm in this.itemDescriptionListBox.SelectedItems)
                    {
                        //newRow.Cells[2].Range.Text = row2["ItemDescription"].ToString();
                        str1 = row2["ItemDescription"].ToString();
                        strb.Append(str1);
                    }
                    newRow.Cells[2].Range.Text = strb.ToString();
                    
                }
                else
                {
                    MessageBox.Show("Cursor must be within a table.",
                        "Actions Pane", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }

        }

Luc Pattyn29-May-10 6:04

29-May-10 6:04

I did not analyze your code, however this struck me:

surfluds wrote:
foreach (DataRowView itm in this.itemDescriptionListBox.SelectedItems)
{
//newRow.Cells[2].Range.Text = row2["ItemDescription"].ToString();
str1 = row2["ItemDescription"].ToString();
strb.Append(str1);
}

itm is enumerating a collection, however you don't use it anywhere???

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Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

I only read formatted code with indentation, so please use PRE tags for code snippets.

I'm not participating in frackin' Q&A, so if you want my opinion, ask away in a real forum (or on my profile page).

surfluds29-May-10 6:16

29-May-10 6:16

Yes thanks Luc, seen that finally, all works as it should. Tired. Sigh | :sigh:

surfluds29-May-10 6:14