Re: Finding an item in a listview - C# Discussion Boards

Re: Directory Crawling Class - feedback wanted.

Ennis Ray Lynch, Jr.26-Nov-07 7:41

Ennis Ray Lynch, Jr.

26-Nov-07 7:41

Have you looked into the DirectoryInfo class which has recursive methods?

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Re: Directory Crawling Class - feedback wanted.

GuyThiebaut26-Nov-07 7:50

GuyThiebaut

26-Nov-07 7:50

Thanks Ennis,

I'll check it out.

Regards

Guy

You always pass failure on the way to success.

Re: Directory Crawling Class - feedback wanted.

GuyThiebaut26-Nov-07 7:57

GuyThiebaut

26-Nov-07 7:57

I found a good article at clickety.

However in the end I think I got it right(for my purposes) - as I have found using recursion fills the stack up pretty quickly when recursing through a large directory structure.

Thanks for your help,

Guy

You always pass failure on the way to success.

Re: Directory Crawling Class - feedback wanted.

schoetbi26-Nov-07 10:29

schoetbi

26-Nov-07 10:29

Hi,

well you can also handle that exception, or?

<br />
try{<br />
 code where the exception occoures<br />
}<br />
catch (Exception e)<br />
{<br />
  handle the exception, or just log it somewhere<br />
}

regards, Tobias

Re: Directory Crawling Class - feedback wanted.

GuyThiebaut26-Nov-07 23:05

GuyThiebaut

26-Nov-07 23:05

Thanks Tobias,

Yes I used this sort of exception handling with the class/methods I used.

Regards

Guy

You always pass failure on the way to success.

Finding an item in a listview

Lucy26-Nov-07 3:15

Lucy

26-Nov-07 3:15

Hi I have a listview on my windows form with a details view. The listview has to columns and many items. These items and subitems are add to the listview in the form load event. The item are also put in s specific order. I then want to find an item in the second column and then select this item and give it focus.

Can anyone give me any suggestions or where I can find good examples of listviews?

Lucy

Re: Finding an item in a listview

SABhatti26-Nov-07 4:29

SABhatti

26-Nov-07 4:29

have you googled it[^]

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Re: Finding an item in a listview

Lucy26-Nov-07 5:29

Lucy

26-Nov-07 5:29

Hi thank you for the link. I was trying to go about this a different way but I found the answer before your reply using trial and error, Here is my form load event and the last if statement finds the item:

            RegistryKey key = Registry.LocalMachine.OpenSubKey("RegKey_test", true);<br />
            RegistryKey k = key.OpenSubKey("Classification");<br />
            if (k != null)<br />
            {<br />
                string[] names = k.GetValueNames();<br />
                <br />
                for (int i = 0; i < k.ValueCount; i++)<br />
                {<br />
                    int values = Convert.ToInt32(k.GetValue(names[i], ""));<br />
                    ListViewItem item1 = new ListViewItem();<br />
                    ListViewItem.ListViewSubItem item2 = new ListViewItem.ListViewSubItem();<br />
                    item1.Text = names[i];<br />
                    item2.Text = Convert.ToString(values);<br />
                    item1.SubItems.Add(item2);<br />
                    listView1.Items.Add(item1);<br />
                }<br />
            }<br />
<br />
            if (key.GetValue("Threshold") != null)<br />
            {<br />
                string KeyValue = Convert.ToString(key.GetValue("Threshold", ""));<br />
                ListViewItem itemFind = listView1.FindItemWithText(KeyValue, true, 0);<br />
                if (itemFind != null)<br />
                {<br />
                    itemFind.Selected = true;<br />
                    listView1.FocusedItem = itemFind;<br />
                }<br />
            }

I am not sure if this is user friendly yet as the second column of the listview may be taken out so that the values cannot be seen by the user. I would then need a new ways to find the value needed to select the appropriate item.

Lucy

Displaying multiple images in a picture box

Ofori Boadu26-Nov-07 3:12

Ofori Boadu

26-Nov-07 3:12

I am trying to display multiple images in a single picture box control. Any ideas?

a novice

Re: Displaying multiple images in a picture box

Colin Angus Mackay26-Nov-07 3:35

Colin Angus Mackay

26-Nov-07 3:35

Your picture box has an image associated with it. The image can be anything including one created in memory. Create a Bitmap (which is a type of image) in memory and draw the multiple other images into it in the appropriate place with the appropriate size.

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Re: Displaying multiple images in a picture box

Ajay.k_Singh26-Nov-07 3:45

Ajay.k_Singh

26-Nov-07 3:45

If you are going to show more than one images on a single picture box, you may try creating a new image containing all images which you want to show.

Following code will show two images img1.jpg and img2.jpg on the same picture box, by drawing them on a third image; second image will be drawn at the bottom of the first image-

-----------------------------Start Code-----------------------------

System.Drawing.Bitmap MergedImage;

System.Drawing.Image Image1 = Image.FromFile("C:\\img1.jpg");
System.Drawing.Image Image2 = Image.FromFile("C:\\img2.jpg");

if (Image1.Width > Image2.Width)
{
MergedImage = new Bitmap(Image1.Width, Image1.Height + Image2.Height);
}
else
{
MergedImage=new Bitmap(Image2.Width,Image1.Height + Image2.Height);

}

Graphics g = Graphics.FromImage(MergedImage);

g.DrawImage(Image1, 0, 0);

g.DrawImage(Image2, 0, Image1.Height);

this.pictureBox1.Image = MergedImage;

g.Dispose();
--------------------------------------End Code-------------------------------

I hope this helps Smile | :)

.

-Dave.

Dave Traister,
ComponentOne LLC.
www.componentone.com

Re: Displaying multiple images in a picture box

Ofori Boadu26-Nov-07 5:25

Ofori Boadu

26-Nov-07 5:25

Thank you Dave I tried it and it worked perfectly.

a novice

Re: Displaying multiple images in a picture box

Ofori Boadu26-Nov-07 22:04

Ofori Boadu

26-Nov-07 22:04

I am trying to pull a text from a database and display it in the picture box under the images. I am getting errors though. Any idea how I can do that?

a novice

Re: Displaying multiple images in a picture box

Luc Pattyn26-Nov-07 4:23

Luc Pattyn

26-Nov-07 4:23

Alternatively, throw away that PictureBox; use a Panel instead, and in its OnPaint method,
draw the different images with Graphics.DrawImage() at the required positions.

Smile | :)

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Creating Form

karlschm26-Nov-07 2:25

karlschm

26-Nov-07 2:25

If I have to create a new form in code, where exactly do I enter the code, or do I need to add a codepage to enter the coding. Please help

Karolis

Re: Creating Form

Colin Angus Mackay26-Nov-07 3:33

Colin Angus Mackay

26-Nov-07 3:33

karlschm wrote:
If I have to create a new form in code, where exactly do I enter the code, or do I need to add a codepage to enter the coding.

It sounds like you really need to pick up a beginners book on C#.

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Re: Creating Form

new2pgrmg26-Nov-07 17:15

new2pgrmg

26-Nov-07 17:15

Hi,
i think what you are trying to do here is create a new windows form.
its simple.
open your visual studio.
select windows application
you will get a screen with a form(a blank square)
double click on it,you will get the aread to enter the code.
this is the simplest explanation Smile | :)

check it out any doubts i will be here

j

Re: Creating Form

karlschm27-Nov-07 2:05

karlschm

27-Nov-07 2:05

Hi J,

Thanks for the help...

This part I understand, however I want to add a form without using the Designer interface or GUI, but from scratch using only code. One way I think I can do this is by adding a code file and then entering the relative code here with to correct imports and using statements. Is this the correct way?

Every source I am searching only explains via the Designer and not from scratch with code.

Thanks for the assistance Smile | :)

Problem displaying on gridview by searchByDate

drawmylyfe26-Nov-07 2:08

drawmylyfe

26-Nov-07 2:08

hi all,
im now doing the 'SearchEvent' by date, using asp.net & C# on visualstudio2005,
where the user will search the event by selecting from the 3 dropdown boxes:
dropdownDay, dropdownMonth and dropdownYear.

-example of date in database: 10-Mar-2004

right now, i've encountered some problems displaying my result in the gridview table when i clicked on search.
when i run it, it doesn't displays any table/data at all, unlike my previous 'search by description' which is able to display out.

OleDbConnection conn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source =" + Server.MapPath("myFile..mdb") + ";");
            conn.Open();
            string query = "SELECT code, description, start_date, start_time, venue FROM Event WHERE start_date = '" + dropdownDay.SelectedIndex.ToString() + "' - '" + dropdownMonth.SelectedIndex.ToString() + "' - '" + dropdownYear.SelectedIndex.ToString() + "'"; 
            
            OleDbDataAdapter comm = new OleDbDataAdapter(query, conn);
            DataSet ds = new DataSet();
            comm.Fill(ds);
            GridView1.DataSource = ds;
            GridView1.DataBind();

i would appreciate some help on this code here.
Thanks a lot.

Blush | :O

Scroll Bar Issue----How to find whether the scroll bar is desplaying at runtime

pashitech26-Nov-07 1:59

pashitech

26-Nov-07 1:59

Hi,
I have an orientation issue,

in my mobile application, in my ListView Whenever I shift from portait to lanscape depending upon the size(height) Its desplaying Horizatal scroll bar,
coz, while calcuating I am unable to catch whether the vertical scroll bar is there are not..

I WANT TO KNOW HOW TO FIND OUT WETHER VERTICAL SCROLLBAR IS DESPLAYYING OR NOT.

Thanks,
Prashanth

Not able to populate Combobox

subramanyeswari26-Nov-07 1:35

subramanyeswari

26-Nov-07 1:35

Hi,

This is my code in the form load

string sConnectionString = "Data Source=testingserver2;Initial Catalog=test;User Id=sa;Password =agr2007$ ";
SqlConnection conn = new SqlConnection(sConnectionString);
conn.Open();
SqlCommand comm = new SqlCommand("select ModuleId from Module_Master", conn);
SqlDataAdapter dap = new SqlDataAdapter(comm);
DataSet ds = new DataSet();
dap.Fill(ds);
cmbModuleID.DataSource = ds.Tables["MODULE_MASTER"];
cmbModuleID.ValueMember ="ModuleID";
cmbModuleID.DisplayMember = "ModuleID";

I kept a break point at dap.Fill(ds) and checked. It is fetching the values from the database. But i am not able to populate combo with those values.

Thanks in advance

Re: Not able to populate Combobox

Sun Rays26-Nov-07 1:40

Sun Rays

26-Nov-07 1:40

Hi,
if you are saying about Dropdownlist then

subramanyeswari wrote:
cmbModuleID.ValueMember ="ModuleID";
cmbModuleID.DisplayMember = "ModuleID";

there is not any porperty like this.. I dont Know abt this.

U can do this..

cmbModuleID.DataSource = ds.Tables["MODULE_MASTER"];<br />
cmbModuleID.DataTextField="ModuleID"; <br />
cmbModuleID.DataValueField= "ModuleID";<br />
cmbModuleID.DataBind();<br />

Thanks,
Sun Rays

To get something you must have to try once.

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Re: Not able to populate Combobox

subramanyeswari26-Nov-07 1:52

subramanyeswari

26-Nov-07 1:52

thanks for your quick reply. But i am not able to find DataTextField,DataValueField properties and DataBind function for the cmbModuleID combo box.

Regards

print form controls

avvaru.murali26-Nov-07 1:31

avvaru.murali

26-Nov-07 1:31

Hi, iam in windows application (with n-tier architecture)

im my application iam designing form with usercontrols and attach the usercontrol to mainform.
myproblem is to print usercontrol form which consists of
lables,panel,textbox and gridview control.

so please help how can i do it?
i also try with codeproject print forms code ,but it is not giving output..(it's not giving any error but it is not displaying only blank page)

with regards
murali krishna

murali krishna

Re: print form controls

Sun Rays26-Nov-07 1:37

Sun Rays

26-Nov-07 1:37

Hi,
u can check this

http://www.devarticles.com/c/a/C-Sharp/Printing-Using-C-sharp/4/[^]

Thanks,
Sun Rays

To get something you must have to try once.

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