Re: Generating Text bitmap from Graphics - C# Discussion Boards

6-Dec-06 22:48

Hi, All.

My application have to generate a text bitmap. The text string is inputted by user, and will be drawn on a panel witin a fixed region. so the string is auto wrapped with multi-line.

I would like to save the display text into a bitmap file (same as the preview with auto wrapped). Does anyone know how to do ? Could you please provide me some examples ? Thank you so much !!

Martin#6-Dec-06 23:16

Martin#

6-Dec-06 23:16

Hello,

Do I understand it write, that you have the Text allready in your panel and make a bitmap (like screenshot) from the panel?

Martin

azusakt7-Dec-06 15:08

7-Dec-06 15:08

yes, correct.

I have already used the drawString to draw text on Panel. But don't know how to generate a bitmap.
Here is my example code for drawing the string:

<br />
string txt = "AbcdefgHigklmnopqrstuvWxyz.AbcdefgHigklmnopqrstuvWxyz.***(AbcdefgHigklmnopqrstuvWxyz)@#!!!) (AbcdefgHigklmnopqrstuvWxyZ)ZZZZZZZ";<br />
StringFormat drawFormat = new StringFormat();<br />
<br />
drawFormat.FormatFlags = StringFormatFlags.DisplayFormatControl;<br />
drawFormat.Trimming = StringTrimming.Character;<br />
drawFormat.LineAlignment = StringAlignment.Near;  // start from top line<br />
<br />
g.DrawRectangle(Pens.Red, new Rectangle(100, 100, 200, 500));<br />
g.DrawString(txt, f, Brushes.Black, new RectangleF(100, 100, 200, 500), drawFormat);<br />
<br />

Martin#7-Dec-06 21:28

Martin#

7-Dec-06 21:28

Hello,

You could use the CreateBitmap Method of the panel class.

All the best,

Martin

Eduard Keilholz7-Dec-06 4:24

Eduard Keilholz

7-Dec-06 4:24

Create a new Graphis object and use DrawString function....

.: I love it when a plan comes together :.
http://www.zonderpunt.nl

azusakt7-Dec-06 15:10

7-Dec-06 15:10

But use DrawString just draw the text on the screen...
how can I generate a bitmap as same as the preview on screen?

thank you

Guffa7-Dec-06 4:59

Guffa

7-Dec-06 4:59

Use the DrawToBitmap method to draw the control on a Bitmap.

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

azusakt7-Dec-06 15:12

prompt message box on web page using C#

7-Dec-06 15:12

Thank you Guffa,
I'm sorry, can you give me some example code?

mohd imran abdul aziz6-Dec-06 22:07

6-Dec-06 22:07

Dear All,
I am making web based Application.There i am making one master page where i am saving, delete data. I need to know how i can prompt message before saving or deleting data(Asking whether user want to save data or not). how i can do it in C#.
thanks

regards
imran khan

quiteSmart6-Dec-06 22:27

6-Dec-06 22:27

You can use the DialogResult object. Any messageBox always returns a DialogResult that contains the name of the button that was pressed (clicked.

<br />
DialogResult result = MessageBox.Show("Write the question u want to ask here", "write the title (caption) of the message box", MessageBoxButtons.YESNO, MessageBoxIcon.Question);<br />
<br />
if(result.toString() == "Yes")<br />
    //Do something cz the user clicked yes<br />

Note: if you are using asp and creating a web application as u stated u can't use the message box directly without referencing to its name space,

you should add the reference: using System.Windows.Forms

hope it helps,

mohd imran abdul aziz6-Dec-06 22:50

6-Dec-06 22:50

Thanks for quick reply but when i use system.window.forms. it generates an error of namespace system does not exit in the namespace system.
I am using asp.net and C#
Please help.

regards
imran khan

quiteSmart6-Dec-06 22:59

6-Dec-06 22:59

use the add reference and add it
u can use the add reference following these steps:

click on the Project in the main menu,
--> go down to the add reference
--> stay in the .Net tab and scroll down till you find the System.Windows.Forms
--> select it and then click add

now u should be able to use the message box by just writting MessageBox.show(.......)

good luck

mohd imran abdul aziz6-Dec-06 23:45

6-Dec-06 23:45

Thanks Very much, It worked fantastic!.Thanks once againe
I have one more question. Now i am preparing verious master. some of then are very similar. Like branch master(which has branch name and branch description),
Unit master(which has unit code and unit description). So i wanted to make one form and based on menu item selection(Bcoz i used asp:menu).so by using navigationurl. i redirect it to corresponding web Page.
Is My idea is correct. Or i have to do it other way.
Please help.
Anyway thanks you once againe

regards
imran khan

quiteSmart7-Dec-06 1:40

7-Dec-06 1:40

sorry man,

i don't work much on ASP, my basic work is C# but i have passed through ASP for my own knowledge only.

I am not sure about the answer i will give you but i think that what u said is logic and will work.

Hope u get the best out of it.

Note: for next time please post the ASP questions in the ASP MessageBoard

Good Luck

mohd imran abdul aziz7-Dec-06 2:28

7-Dec-06 2:28

Actuaaly in page load event other file , i just want to fetch the selected item menu in other page. that is i have form called home.aspx where i have defined menu.based on selected item menu. i will write code in(C#) other form
master.aspx.cs So i want to fetch selected menu item in master.aspx.cs how i can do that that i want to know.

thanks

regards
imran khan

Bhupi Bhai6-Dec-06 22:50

Bhupi Bhai

6-Dec-06 22:50

Ur in the wrong forum. Look in the asp.net forum, I have replied there to a similar question there.
BTW, Alerts \ Confirm are used to pop up messages.

Regards,
Bhupi Bhai.

jdkulkarni6-Dec-06 22:54

jdkulkarni

6-Dec-06 22:54

Exactly right. You can not pop up MessageBox.Show("") in ASP.NET. You will get this error. "Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application.".
You should only use Alert or Confirm. Especially in your case Confirm should work fine.

Jayant D. Kulkarni
Brainbench Certified Software Engineer in C#, ASP.NET, .NET Framework and ADO.NET

quiteSmart6-Dec-06 23:14

6-Dec-06 23:14

u are wrong
you can use the messagebox.show

follow what i wrote in the previous post(reply) and u will see how.

Smile | :)

jdkulkarni6-Dec-06 23:21

jdkulkarni

6-Dec-06 23:21

Try using this.

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data;
using System.Data.Sql;
using System.Data.SqlClient;
using System.Windows.Forms;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {        
        MessageBox.Show("Hi");
    }
}

Main thing is how MesageBox.Show("") will generate a dialog box at client side? MessageBox object is very specific to desktop. If you have tried the same I'll like to see that code.

Jayant D. Kulkarni
Brainbench Certified Software Engineer in C#, ASP.NET, .NET Framework and ADO.NET

Bhupi Bhai6-Dec-06 23:32

Bhupi Bhai

6-Dec-06 23:32

Wow, is it ??
I too would like to c the code.

Regards,
Bhupi Bhai.