ASP.NET

18-Feb-10 11:11

How do I do this?
Thanks

webconfig

arkiboys18-Feb-10 6:47

18-Feb-10 6:47

Hello,
I would like to have several settings inside the webconfig file.
i.e.
<LOB>x</LOB>
<LOB>y</LOB>
<LOB>z</LOB>
<LOB>A1</LOB>

then in C#, I would like to populate a dropdown list with these values i.e. x, y, z, A1

What is the first thing to do in the webconfig to place these settings?
Thanks

Not Active18-Feb-10 6:59

18-Feb-10 6:59

The first thing to do is read this, How to get answers to your question[^]

Then read a book. Even a basic ASP.NET book covers web.config file

I know the language. I've read a book. - _Madmatt

arkiboys18-Feb-10 7:03

18-Feb-10 7:03

hi,
Please note that I do know how to retrieve values from something like <appsetting> in the web config by referring to the key but I do not know how to retrieve values if there is no key for example:
<LOB></LOB>
<LOB></LOB>
<LOB></LOB>

Then how do I populate a dropdownlist with the values in these pls?
Thanks

Rutvik Dave18-Feb-10 7:23

Rutvik Dave

18-Feb-10 7:23

You need to add a appSettings section in your web.config

i.e.

// after < configuration >

<appSettings>
    <add key="variableName"   value="someValue"/>
</appSettings>

Now to read that value.

string x = System.Configuration.ConfigurationSettings.AppSettings.Get("variableName");

Hope this helps, its up to you how to use this. Smile | :)

arkiboys18-Feb-10 7:32

18-Feb-10 7:32

Hi, At present I do have these settings for other things. But the new requirement is to add something like the example I showed earlier.
So is it possible to add to the appsettings sections several lines with the same key? so that I can loop through that one key to get the values i.e.
<appsetting>
<add key="LOB" value="x"/>
<add key="LOB" value="y"/>
<add key="LOB" value="z"/>
...

Is it possible to just populate a dropdown list with the values of each LOB ?
Thanks

Rutvik Dave18-Feb-10 7:36

Rutvik Dave

18-Feb-10 7:36

No, but you can separate the values by comma in the same key. and at the coding side you can read it accordingly.

i.e.

<add key="LOB" value="x,y,z"/>

and when you read the key split the string using comma.

i.e.

string []x = System.Configuration.ConfigurationSettings.AppSettings.Get("variableName").Split(",");

// and you have the values in x[0], x[1] ...etc

arkiboys18-Feb-10 11:08

18-Feb-10 11:08

What I exactly would like to do is as follows:
On the main page of the site, there will be a dropdown with the names of the databases. On selecting a database name from the drop down list control, then the system will use one of the connectionstring settings which points to the relevant database.
so there are several connectionsettings i.e.
<....connectionstring...database=x..../>
<;....connectionstring...database=b..../>
...

I would like to make sure the correct connectionstring is used.
How can I do this please?
Thanks

The Man from U.N.C.L.E.18-Feb-10 8:30

The Man from U.N.C.L.E.

18-Feb-10 8:30

Why save them in the web config? only config settings should be there.

How about a separate xml file. You then have total control over the format of the xml and can read it using the XMLDocument object.

If you have knowledge, let others light their candles at it.
Margaret Fuller (1810 - 1850)
[My Articles] [My Website]

arkiboys18-Feb-10 11:09

18-Feb-10 11:09

I am interested in the connectionstrings as there will be several conectionstrings in the web.config i.e. one for each database.
The database is selected on the start page and then the correct connectionstring should be used.
What do you think now?
Thanks

The Man from U.N.C.L.E.19-Feb-10 6:24

The Man from U.N.C.L.E.

19-Feb-10 6:24

The difference with connection strings is threefold.

Firstly the nodes are distinguised by their name attribute

Secondly they are, or can be secured. Connection strings can be encrypted, stored in the registry and so on

Thirdly, they are easily maintainable in the IIS managment console.

Web,Config is the right place for them.

If you have knowledge, let others light their candles at it.
Margaret Fuller (1810 - 1850)
[My Articles] [My Website]

Not Active18-Feb-10 8:44

18-Feb-10 8:44

What you need is a custom configuration section

Creating Custom Configuration Section C#[^]

I know the language. I've read a book. - _Madmatt

arkiboys18-Feb-10 19:50

18-Feb-10 19:50

Yes, I do at present have the appsettings for other settings...
In this appsetting each line has a key which allows me to refer to it in code.
For example let's say today I add a setting for a business i.e. <lob>Accounts then next week there will be a new business, so then I will add another line to the setting i.e. <lob>Audits and so forth. So you see, these lines get added to every time.
Somehow I need to retrieve these values and populate a dropdownlist with i.e.Accoounts, Audits, etc...
The question is how do I refer to these settings if there is no key?
Thanks

Not Active19-Feb-10 0:30

Multiple Dynamic Control Postback Issue [modified]

19-Feb-10 0:30

Have you even read the link that was given?

I know the language. I've read a book. - _Madmatt

smilingeyes7618-Feb-10 4:26

smilingeyes76

18-Feb-10 4:26

Good morning,

I've searched the web for a week to find a solution to a problem, but I can't figure it out, so now I'll try to post directly what the problem is and hope that someone could explain me how to go ahead. I'm new to Asp.Net, and some years have passed since I used to programme in C/C++.

I have an aspx page with two "Controller" textboxes.
If you insert a number X in TB1, on the OnTextChanged event, a Placeholder is populated with X TextBoxes (the number you entered).
If you insert a number H in TB2, on the OnTextChanged event, a Placeholder2 is populated with H TextBoxes (the number you entered).

The problem is that each time you enter a number you have a postback, hence after the first time, you loose all the data and the TextBox Controls in the PlaceHolder already populated. I cannot use Ajax UPdatePanel, so I know I should save the user data with the viewstate or Session, but i don't have idea of how to recall them to repopulate the PlaceHolder after Postback.

Here is my code ~~C++~~C#(I tried to leave just the interesting parts).

<table>
    <tr><td valign="middle"></td>
             <td><asp:TextBox ID="cldtb" runat="server" OnTextChanged="cldtb_OnTextChanged" AutoPostBack="true"></asp:TextBox></td>
        <td valign="middle"><asp:Panel id="pnlEnterNumbers" runat="server">
           <asp:PlaceHolder id="myPlaceHolder" runat="server" /></asp:Panel> </td> </tr>

</table>

  protected void cldtb_OnTextChanged(object sender, System.EventArgs e)
  {
      int I, intNumberCount;

          // Get number of items to be entered.
          intNumberCount = System.Convert.ToInt16(cldtb.Text);

          if (intNumberCount > 0)
          {
              //Add one textbox to enter each item.
              System.Web.UI.WebControls.TextBox txtNumber;
              for (I = 1; I <= intNumberCount; I++)
              {
                  txtNumber = new System.Web.UI.WebControls.TextBox();
                  txtNumber.ID = "birthdate" + I;
                  txtNumber.MaxLength = 8;
                  myPlaceHolder.Controls.Add(txtNumber);

              }

              // Add number of items to viewstate
              ViewState["NumberCount"] = (I - 1);
              //Session["holdMe"] = myPlaceHolder;
          }
}

modified on Monday, February 22, 2010 5:52 AM

Re: Multiple Dynamic Control Postback Issue

Not Active18-Feb-10 7:07