C#

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DataGrid enable edit on column ajkumar26-Jul-05 15:39 ajkumar 26-Jul-05 15:39  I have one DataGrid which is bound to ArrayList. By default I'm all the columns in that Grid are non editable. But I'm not able to make one column editable after the initial load of the grid. I'm using following code... DataGridTextBoxColumn columnStyle = (DataGridTextBoxColumn)(dataGrid1.TableStyles[0].GridColumnStyles["Spread"]); columnStyle.ReadOnly = false; Thanks Ajay Re: DataGrid enable edit on column Anonymous27-Jul-05 1:52 Anonymous 27-Jul-05 1:52  Need urgent help. Custom Datagrid Help! Header disappears on Post Back! dgap26-Jul-05 14:56 dgap 26-Jul-05 14:56  Hi All, I am creating a custom Datagrid but on any postback all of the text for the Header disappears! If I do a "this.Parent.Page.DataBind()" the header reappears...but I lose all of the data changes that were made to the datagrid! Any ideas as to why a postback would clear out my header? And how I can fix this? Many thanks in advance! BTW, Mihir, I really appreciate all of your help... your suggestions for my other problem helped alot and that part is working now ) Reflection - custom attributes Luis Alonso Ramos26-Jul-05 13:03 Luis Alonso Ramos 26-Jul-05 13:03  Hello, On my question below on how to derive from an internal class (see here[^]), I have two possible solutions: 1. To dynamically create a derived class from TabControlDesigner. 2. To use directly TabControlDesigner as the designer for my class. Since I don't want to modify the TabControlDesigner class, solution 1 would be preferred. However, I'm stuck on trying to create (or change) a custom attribute (DesignerAttribute) for my TabControlEx class. I can get an array of all custom attributes, but only those defined at compile-time. I have a third solution, which is to implement my own TabControlExDesigner, and privately contain a dynamically created TabControlDesigner and call its methods. But they are around 20. Is there any way around this? Or, is there a way I can set the designer class at run time? -- LuisR Luis Alonso Ramos Intelectix - Chihuahua, Mexico Not much here: My CP Blog! Re: Reflection - custom attributes [Marc]26-Jul-05 16:01 [Marc] 26-Jul-05 16:01  Just asking: have you tried [Designer("System.Windows.Forms.Design.TabControlDesigner")] Maybe you've already tried it, but you never know. "..Commit yourself to quality from day one..it's better to do nothing at all than to do something badly.." -- Mark McCormick Re: Reflection - custom attributes Luis Alonso Ramos26-Jul-05 18:42 Luis Alonso Ramos 26-Jul-05 18:42  Yes, I did. The compiler didn't like it because that class is internal. Same error that if I try to derive from that class. For the moment, I don't have the designer attribute, and it seems to work fine (if I add the control manually, the regular tab control designer is used.) Thanks! -- LuisR Luis Alonso Ramos Intelectix - Chihuahua, Mexico Not much here: My CP Blog! Re: Reflection - custom attributes [Marc]27-Jul-05 8:24 [Marc] 27-Jul-05 8:24  Well, i didn't do anything, but: You're Welcome! "..Commit yourself to quality from day one..it's better to do nothing at all than to do something badly.." -- Mark McCormick Intercepting focus change between apps Gmoff26-Jul-05 11:55 Gmoff 26-Jul-05 11:55  Hey there, I'm currently trying out a multiple monitor setup, and for the most part I like the results. The one issue I'm having at this point is when running a full screen application on one monitor, I can't effectively use any other monitor. One of the following two things happens: A) I can move the mouse to the other monitor(s) but upon clicking, the fullscreen application loses focus and minimizes B) I cannot move the mouse away from the full screen application For the most part B is not a problem, but I would like to be able to set a hot-key to switch focus away from the application without minimizing it. So, it seems fairly obvious that I need to intercept and discard the focus lost message to fix A, and maybe set up a hotkey to provide alt-tab like functionality, again preventing focus loss, to fix B. Unfortunately my message handling experience is limited and c++ based, and I'd like to do this in C#. Does anyone know if something like this exists already? If not, I'd appreciate a push in the right direction to do it myself. Thanks! Dave Miller Re: Intercepting focus change between apps [Marc]26-Jul-05 14:17 [Marc] 26-Jul-05 14:17  Do those problems occur with every app, or only with games? I've got 2 moitors, and i can swap programs and move my mouse when-/wherever i want, as long as i'm not playing some (DirectX ?) game. Sorry i can't help you any further... "..Commit yourself to quality from day one..it's better to do nothing at all than to do something badly.." -- Mark McCormick Re: Intercepting focus change between apps Gmoff26-Jul-05 16:13 Gmoff 26-Jul-05 16:13  It is usually games that cause problems, but I'm sure there are exceptions. Re: Intercepting focus change between apps [Marc]27-Jul-05 8:52 [Marc] 27-Jul-05 8:52  Well, then i don't know anything too... "..Commit yourself to quality from day one..it's better to do nothing at all than to do something badly.." -- Mark McCormick Pass value to other form Newbie_Toy26-Jul-05 10:07 Newbie_Toy 26-Jul-05 10:07  How can I pass value from WindowForm to another WindowForm like click ok button in form1 and fill data in listview of form2. I try to use public modifier but it doesn't work. Thank you. Ps. I use modal form. Re: Pass value to other form Judah Gabriel Himango26-Jul-05 10:38 Judah Gabriel Himango 26-Jul-05 10:38  This often comes up in the forum among object-orientation beginners. I suggest you search the forum. Basically, pass your Form1 instance to Form2, then in form2, call form1Instance.SomePublicValue to get to the value. Tech, life, family, faith: Give me a visit. I'm currently blogging about: Homosexuality in Christianity Judah Himango Re: Pass value to other form Christian Graus26-Jul-05 12:52 Christian Graus 26-Jul-05 12:52  The best way is to pass only the data needed to the second form before calling ShowDialog through a public property. Christian Graus - Microsoft MVP - C++ Julian Date to CoolProg26-Jul-05 9:24 CoolProg 26-Jul-05 9:24  Hi, Anyone know how to convert a Julian type date (example: 05189 - Format YYDDD) to a current DateTime using C#. Thanks Re: Julian Date to Guffa26-Jul-05 14:57 Guffa 26-Jul-05 14:57  Create a DateTime structure from the year and add the number of days less one: new DateTime(2000 + 5, 1, 1).AddDays(189 - 1) --- b { font-weight: normal; } Deriving from an internal class Luis Alonso Ramos26-Jul-05 9:20 Luis Alonso Ramos 26-Jul-05 9:20  Hello, I'm writing a little TabControl derivative to provide a SelectedIndexChanging event. I would like to add designer-support. I currently can create the object in the designer, but I have to implement a lot of code in the TabControlDesigner internal class (in System.Design.dll, see with .NET Reflector.) Since it's basically a normal TabControl, I would like to avoid all the work and just use the same designer support, but the class is marked internal, so I can't specify it in the Designer attribute. Is there a way (using reflection for example) to use this class as my designer? [EDIT: Actually I don't need to derive from it. If I could specify it in the Designer attribute, it would be enough.] Thanks, -- LuisR Luis Alonso Ramos Intelectix - Chihuahua, Mexico Not much here: My CP Blog! Change font inside a string WetRivrRat26-Jul-05 8:32 WetRivrRat 26-Jul-05 8:32  Hey, i need to BOLD some words inside a string that is part of a smtpmail body. Here is my string: string Message_body1="User password reset " +usename +"\r\n \r\n \r\n Login information for this user has been reset. \r\n \r\n login id:" +UserName ; I want to bold "login id:" Dim Beautiful As String Beautiful = "ignorant" Label1.Text = "The world is full of " & Beautiful & " people." Why is common sense such an un-common comodity? Re: Change font inside a string Luis Alonso Ramos26-Jul-05 8:36 Luis Alonso Ramos 26-Jul-05 8:36  In a plain-text email, you can't. If it's an HTML email, just use the appropiate tags. -- LuisR Luis Alonso Ramos Intelectix - Chihuahua, Mexico Not much here: My CP Blog! Re: Change font inside a string WetRivrRat26-Jul-05 8:37 WetRivrRat 26-Jul-05 8:37  yah, plain text.... thanks Dim Beautiful As String Beautiful = "ignorant" Label1.Text = "The world is full of " & Beautiful & " people." Why is common sense such an un-common comodity? Re: Change font inside a string Dario Solera26-Jul-05 8:38 Dario Solera 26-Jul-05 8:38  You have simply to set the message type to html (MailMessage.BodyFormat = MailFormat.Html), then use html tags. To bold a word, just write: <b>your word</b>. Re: Change font inside a string WetRivrRat26-Jul-05 8:41 WetRivrRat 26-Jul-05 8:41  yah, but can i do that from a win form? not working on a web form Dim Beautiful As String Beautiful = "ignorant" Label1.Text = "The world is full of " & Beautiful & " people." Why is common sense such an un-common comodity? Re: Change font inside a string Dario Solera26-Jul-05 8:49 Dario Solera 26-Jul-05 8:49  if you use a RichTextBox instead of a Label or TextBox, yes. if the word you have to bold starts at position 12 (char 12) and it is long 10 chars, do that: int oldPos = richTextBox1.SelectionStart; richTextBox1.SelectionStart = 12; richTextBox1.SelectionLength = 10; richTextBox1.SelectionFont = new Font(richTextBox1.SelectionFont, FontStyle.Bold); richTextBox1.SelectionStart = oldPos; richTextBox1.SelectionLength = 0; richTextBox1.ScrollToCaret(); Note that oldPos is used only for restoring the old position of the blinking cursor. do that only if you need it. I don't know any other valid way in WinForms... Re: Change font inside a string WetRivrRat26-Jul-05 8:55 WetRivrRat 26-Jul-05 8:55  well, sorry I didn't explain myself well... I'm using smtpMail from withing the code, no input from the user except the email address. But none the less I was stuck in the mindset of a single line of code for the smtpmail method and forgot that if i was to declare everything with MailMessage that I could use it as MailFormat.Html, so I figgured it out. Thanks for the memory jolt! Dim Beautiful As String Beautiful = "ignorant" Label1.Text = "The world is full of " & Beautiful & " people." Why is common sense such an un-common comodity? IEnumerator for selecting only controls of a given type JakeHolt26-Jul-05 7:23 JakeHolt 26-Jul-05 7:23  I'm creating a page with a ton of chk boxes and instead of writing out a switch or if, if, if... is there a way to loop through them using IEnumerator ien = Panel1.controls.getEnumerator() and process only controls of a given (Check Boxes) type? I can't seem to make it work. Thank you in advance, Jake Holt

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