C# Discussion Boards - CodeProject

Re: selection of a combo box shows other buttons

Rahul.RK14-Jun-06 0:40

14-Jun-06 0:40

Make the visible property false at start up

and then in the combobox_selectindex method make all controll's

visible property true.

Rahul Kulkarni

Re: selection of a combo box shows other buttons

danish_bear14-Jun-06 1:51

danish_bear

14-Jun-06 1:51

Hi again,

I'm quite fresh here - so could you please be more specific about "combobox_selectindex method make all controll's
visible property true" ?

Thanks,

danish_bear

Re: selection of a combo box shows other buttons

Suamal14-Jun-06 2:25

Suamal

14-Jun-06 2:25

You can double click the drop down in the design , it will open the cede page with selected index changed event.
There you can write code to make other dropdown visible.
Set autopostback property of dropdown to true

Re: selection of a combo box shows other buttons

Mike Poz14-Jun-06 18:58

Mike Poz

14-Jun-06 18:58

Hi Daniela, If I read your request right, you want something like this perhaps?

private void Form1_Load(object sender, EventArgs e)
{
//some magic code you need at form initialization goes here
//probably code that populates the combo boxes with whatever
//values you need at startup or populate on the fly as in the
//below event handler

//Set your form objects to be hidden or alternatively, you can
//set them to be hidden when they're initially created
MySecondComboBox.Visible = false;
MyThirdComboBox.Visible = false;
MyFourthComboBox.Visible = false;
MySubmitButton.Visible = false;
}

private void MyFirstComboBox_SelectedIndexChanged(object sender, EventArgs e)
{
//populate the combo boxes before making them visble
PopulateMySecondComboBox();
PopulateMyThirdComboBox();
PopulateMyFourthComboBox();
//now make them visble
MySecondComboBox.Visible = true;
MyThirdComboBox.Visible = true;
MyFourthComboBox.Visible = true;
MySubmitButton.Visible = true;
}

There's supporting code for all this of course, but I will leave that to you. Hope this helps!

Mike Poz

Re: selection of a combo box shows other buttons

danish_bear15-Jun-06 2:45

danish_bear

15-Jun-06 2:45

Yes - I could use this (:

Thanks !!!!

Daniela

danish_bear

Biniding data from a combo box to a table

danish_bear13-Jun-06 23:48

danish_bear

13-Jun-06 23:48

Hi,

Looking for a c# code to show within a table the selection of a combo box in the appropriate column of the table after pressing a submit button( table, combo box, submit button are in the same form)

Thanks,

danish_bear

shared add-in Com Dynamic path problem

mind_Lock13-Jun-06 23:44

mind_Lock

13-Jun-06 23:44

hi i have created shared add-in COM in C# project type
Extensible.Which has Integrated visio 2003 and make
(in visio owen stencilbar,menubar,toolbar)
after stencil file name c:\customshape.vss
but problem is that, i want to dynamic file path
in stencil bar how to that possible.

ali

Binding Child forms with MDI form in C#

Alamzeb khan13-Jun-06 23:38

Alamzeb khan

13-Jun-06 23:38

How can i bind child forms with MDI form in C#.

Re: Binding Child forms with MDI form in C#

Mr. VB.NET14-Jun-06 5:19

Mr. VB.NET

14-Jun-06 5:19

Set the parent property of the form to point to the parent.

ActiveX

Andrew Mercer13-Jun-06 23:27

Andrew Mercer

13-Jun-06 23:27

Hi,

Does any one know of an example that allows a file to be downloaded from a server and saved to a clients hard disk without user intervention?

I have found an article that does it in VB - however an attempt to download the zip file of code to consider altering it failed as the zip file does not exist.

The file to be downloaded will always go to the same directory on the disk.

Thanks Andrew

Re: ActiveX

MrKalinka14-Jun-06 0:09

MrKalinka

14-Jun-06 0:09

Try System.Net.HttpWebRequest / System.Net.HttpWebResponse classes.

item est:

// Replace URI with the file you want to download<br />
HttpWebRequest request=(HttpWebRequest) HttpWebRequest.Create("URI");<br />
HttpWebResponse resp=(HttpWebResponse) request.GetResponse();		<br />
StreamReader sread=new StreamReader(resp.GetResponseStream());<br />
// If you download larger files you should read & write smaller blocks<br />
// let's say 1024 bytes max.<br />
// But for small files this solution should work too:<br />
string content=sread.ReadToEnd();<br />
sread.Close();<br />
// Replace local_path with the client's download location<br />
StreamWriter swr=new StreamWriter("local_path",true);<br />
swr.Write(content);<br />
swr.Close();

__________
Non nobis Domine, non nobis. Set nomini tua da gloriam Wink | ;)

Re: ActiveX

Andrew Mercer14-Jun-06 0:50

Andrew Mercer

14-Jun-06 0:50

Thanks,

However this only downloads to the server from the web site running on the same server...

(ie: I added the code to an aspx.cs page on my web site ran the code in the browser from another desktop machine and a file was successfully downloaded from the website on the server to a directory on the server)

However what I am looking to do is copy the file from the server directory to a directory on the client(or desktop where I am running the browser).

I assume I need to use ActiveX to get access rights to the local machine - however I have so far not found a good example or sufficient information on doing this with C#/Visual Studio 2005.

Thanks again.

Any further help/advice/suggestions much appreciated.

Regards Andrew

String problem with // and //// [modified]

johan313113-Jun-06 23:26

johan3131

13-Jun-06 23:26

Hello,

I have a connection string that is stored in a database, the string is as follows:

"Server=TOIMISTO\\SQLEXPRESS;Database=ValkyriaDB;Trusted_Connection=True;"

Now if i open an connection using this string it works properly if hardcoded, but if i read it from database i get an exception, the reason is that the string gets the form where // is replaced by //// for some reason:

"Server=TOIMISTO\\\\SQLEXPRESS;Database=ValkyriaDB;Trusted_Connection=True;"

and offcourse the SQL databse throws exception.
I tried to replace "\\\\" with "\\" but i did not succeed with
String.Replace("\\\\", "\\");

EDIT: i did get the replace to work (and also the connection) but i still wonder if there is a better solution and what causes it.

Could somebody help me to solve this problem? It is quit annoying and i would apreciate if somebody told me the reason also...

Johan

-- modified at 5:47 Wednesday 14th June, 2006

Re: String problem with // and ////

Robert Rohde14-Jun-06 0:49

Robert Rohde

14-Jun-06 0:49

Simple answer: Don't put a second '\' in the database string. This is only needed when you hardcode the string. When typing "\\" the actual string crated is only "\". The fact that you need two of them is just to tell the compiler what you are actually meaning. Instead of this you could also write @"Server=TOIMISTO\SQLEXPRESS;Database=ValkyriaDB;Trusted_Connection=True;". The @ tells the compiler that backslashes within the whole string are not treated specially.

Convert to array of string

Tamimi - Code13-Jun-06 23:17

Tamimi - Code

13-Jun-06 23:17

hi
i wrote this code :
DataRow objDataRow = ds.Tables[0].Rows[i];
then my question is how to convert the objDataRow to array of string

thank you all

Tamimi - Code

Re: Convert to array of string [modified]

J4amieC13-Jun-06 23:23

J4amieC

13-Jun-06 23:23

Tamimi - Code wrote:
DataRow objDataRow = ds.Tables[0].Rows[i];
then my question is how to convert the objDataRow to array of string

object[] itemArray = objDataRow.ItemArray;

Current blacklist
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-- modified at 5:24 Wednesday 14th June, 2006

Re: Convert to array of string

Tamimi - Code13-Jun-06 23:28

Tamimi - Code

13-Jun-06 23:28

thank you but i want it exactly array of string

i don't want to go throught a loop to convert it to array
of string

thank you again

Tamimi - Code

Re: Convert to array of string

rah_sin13-Jun-06 23:30

rah_sin

13-Jun-06 23:30

string[] str = new string[ds.Tables[0].Columns.count];

rahul

Re: Convert to array of string

Tamimi - Code13-Jun-06 23:40

Tamimi - Code

13-Jun-06 23:40

thank you..
but i want to convert DataRow to array of string
without a loop

Tamimi - Code

Re: Convert to array of string

rah_sin13-Jun-06 23:45

rah_sin

13-Jun-06 23:45

do u want to store datarow's column's value in array of string or what????

rahul

Re: Convert to array of string

Tamimi - Code13-Jun-06 23:54

Tamimi - Code

13-Jun-06 23:54

i have multi colunm list view and i want to fill it
with the data inside the datarows.. so

for(int i=0; i

Re: Convert to array of string

rah_sin14-Jun-06 0:12

rah_sin

14-Jun-06 0:12

u can try
string[] str = new string[Dset.Tables[0].Columns.Count-1];

for(int i=0;i<=str.Length;i++)
{
str[i] = objDataRow[i].ToString();
}

for(int i=0; i < ds.Tables[0].Rows.Count ; i++)
{
ListViewItem listItem = new ListViewItem(str);

listView1.Items.Add(listItem);
}

rahul

Re: Convert to array of string

Tamimi - Code14-Jun-06 1:02

Tamimi - Code

14-Jun-06 1:02

thanks for you time Smile | :)

Tamimi - Code

Re: Convert to array of string

Guffa14-Jun-06 1:29

Guffa

14-Jun-06 1:29

That is not possible. The class has no method to convert the values to strings and put in an array. You have to use a loop.

---
b { font-weight: normal; }

Re: Convert to array of string

Tamimi - Code14-Jun-06 1:46

Tamimi - Code

14-Jun-06 1:46

i thought its possible !! because you can convert it
to array of objects (datarow.itemarray)..
anyway i did it with a loop

thanks for the note

Tamimi - Code

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