Re: Image resize in asp.net - ASP.NET Discussion Boards

bhavnvyas4-Dec-09 23:59

4-Dec-09 23:59

thnx for reply

but WebGUI itself is a my tool.
leave it neways but wat if i am developing somt web gui application in windows app thn how to fetch querystring data...plz help....

Re: Querystring issue

sashidhar5-Dec-09 0:04

sashidhar

5-Dec-09 0:04

bhavnvyas wrote:
web gui application in windows app

What do you mean by tht..!

Can You Explain it More briefly..!

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Re: Querystring issue

bhavnvyas5-Dec-09 0:11

bhavnvyas

5-Dec-09 0:11

thnx again

in my web site i want to use some windows form features so for tht i am inclunding one page which is basically windows form for tht i am using webgui visual studio express which run my application in web.

so i want to pass querystring from my web application page to this windows app page which is basically .wgx page

Re: Querystring issue

Abhishek Sur5-Dec-09 9:43

Abhishek Sur

5-Dec-09 9:43

What is the problem.... load the page using Webbrowser control of your windows application and invoke the items which you need to get the querystring...

For example :

Say I add a Webbrowser control on my form,

now during form load I pass
wbrowser.Navigate(new Uri("http://codeproject.com"));

Next I navigate to an article. You might invoke browser buttons to navigate. Finally to get the querystring you use :
wbrowser.Url.Query

I hope this is what you needed. Rose | [Rose]

Next time post in right section.

Abhishek Sur
Don't forget to click "Good Answer" if you like this Solution.
My Latest Articles-->
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Basics of Bing Search API using .NET
Microsoft Bing MAP using Javascript

Image resize in asp.net

Any_India4-Dec-09 22:34

Any_India

4-Dec-09 22:34

Is there any simple code to resize the image in image upload and at the time of showing the image in asp.net.

plz urgent
thanks

Re: Image resize in asp.net

keyur satyadev4-Dec-09 22:50

keyur satyadev

4-Dec-09 22:50

public static string Resize(string InputFilePath, string Name, int TargetWidth, int TargetHeight, string Extension, string TargetFolder)
            {
                  string thumbnailFilePath = string.Empty;
                  string FileName = string.Empty;
                  Size newSize;
                  try
                  {
                        using (Bitmap bmp = new Bitmap(InputFilePath))
                        {
                              newSize = GetRelativeImageSize(bmp.Width, bmp.Height, TargetWidth, TargetHeight);
                              FileName = Name + Extension;
                              thumbnailFilePath = TargetFolder + FileName;
                              using (Bitmap thumb = new Bitmap((System.Drawing.Image)bmp, newSize))
                              {
                                    using (Graphics g = Graphics.FromImage(thumb)) // Create Graphics object from original Image
                                    {
                                          g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
                                          g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBilinear;
                                          g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
                                          //Set Image codec of JPEG type, the index of JPEG codec is "1"
                                          System.Drawing.Imaging.ImageCodecInfo codec = GetImageCodec(Extension);
                                          //Set the parameters for defining the quality of the thumbnail... here it is set to 100%
                                          System.Drawing.Imaging.EncoderParameters eParams = new System.Drawing.Imaging.EncoderParameters(1);
                                          eParams.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 100L);
                                          //Now draw the image on the instance of thumbnail Bitmap object
                                          g.DrawImage(bmp, new Rectangle(0, 0, thumb.Width, thumb.Height));
                                          thumb.Save(thumbnailFilePath, codec, eParams);
                                    }
                              }
                        }
                  }
                  catch (Exception ex)
                  {
                        throw ex;
                  }
                  return FileName;
            }

//it will return the file name with resize.
private static Size GetRelativeImageSize(int SourceWidth, int SourceHeight, int TargetWidth, int TargetHeight)
{
float nPercent = 0;
float nPercentW = 0;
float nPercentH = 0;
if (SourceWidth <= TargetWidth && SourceHeight <= TargetHeight)
{
return new Size(SourceWidth, SourceHeight);
}
else if (TargetWidth == 0)
{
if (SourceHeight > TargetHeight)
{
nPercentH = ((float)TargetHeight / (float)SourceHeight);
nPercent = nPercentH;
}
else
return new Size(SourceWidth, SourceHeight);

}
else if (TargetHeight == 0)
{
if (SourceWidth > TargetWidth)
{
nPercentW = ((float)TargetWidth / (float)SourceWidth);
nPercent = nPercentW;
}
else
return new Size(SourceWidth, SourceHeight);

}
else
{
nPercentW = ((float)TargetWidth / (float)SourceWidth);
nPercentH = ((float)TargetHeight / (float)SourceHeight);
if (nPercentH < nPercentW)
{
nPercent = nPercentH;
}
else
{
nPercent = nPercentW;
}
}
return new Size(Convert.ToInt32(SourceWidth * nPercent), Convert.ToInt32(SourceHeight * nPercent));
}

Regards
Keyur Satyadev

Re: Image resize in asp.net

Any_India4-Dec-09 23:40

Any_India

4-Dec-09 23:40

thanks for the code

what about the functon of
GetImageCodec(Extension)

you dont declare this function.

Re: Image resize in asp.net

keyur satyadev4-Dec-09 23:56

keyur satyadev

4-Dec-09 23:56

private static ImageCodecInfo GetImageCodec(string Ext)
            {
                  switch (Ext)
                  {
                        case ".jpg":
                              return ImageCodecInfo.GetImageEncoders()[1];
                        case ".gif":
                              return ImageCodecInfo.GetImageEncoders()[2];
                        case ".bmp":
                              return ImageCodecInfo.GetImageEncoders()[0];
                        case ".png":
                              return ImageCodecInfo.GetImageEncoders()[4];
                        case ".jpeg":
                              return ImageCodecInfo.GetImageEncoders()[1];
                        case ".tif":
                              return ImageCodecInfo.GetImageEncoders()[3];
                        case ".jpe":
                              return ImageCodecInfo.GetImageEncoders()[1];
                        case ".jfif":
                              return ImageCodecInfo.GetImageEncoders()[1];
                        case ".tiff":
                              return ImageCodecInfo.GetImageEncoders()[3];
                        default:
                              return ImageCodecInfo.GetImageEncoders()[1];
                  }
            }

Regards
Keyur Satyadev

Re: Image resize in asp.net

macielaf14-Aug-13 9:56

macielaf

14-Aug-13 9:56

Hi!!

I'm trying use this code but does not working.
Please help me.

Simply does not work, not of error but also does not work.

public void carregarImagem()
{
string path = "~/imagens/" + FileUpload1.FileName;
string folder = "~/imagens/";
string nome = FileUpload1.FileName;
int largura = Convert.ToInt32(w.Text);
int altura = Convert.ToInt32(h.Text);
string ext = System.IO.Path.GetExtension(FileUpload1.FileName);

string name = "~/imagens/" + FileUpload1.FileName;

Resize(picImage.ImageUrl, nome, largura, altura, ext, folder);

//used to show image
picImage.ImageUrl = name;
}

Re: Image resize in asp.net

sashidhar4-Dec-09 23:50

sashidhar

4-Dec-09 23:50

Try this ..!

google hits[^]
Google Hits..![^]

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Re: Image resize in asp.net

macielaf15-Aug-13 5:32

macielaf

15-Aug-13 5:32

I'm tring to use this function "CreateThumbnail", but dosen't work.
Just dont show me nothing.

Please.

help me

vbmadhavi4-Dec-09 21:38

vbmadhavi

4-Dec-09 21:38

i want to save items in listbox without using data base.how it is possible

Re: help me

keyur satyadev4-Dec-09 21:48

keyur satyadev

4-Dec-09 21:48

Use "Session" if you want it on multiple page or through out the site.

Regards
Keyur Satyadev

Re: help me

sashidhar4-Dec-09 22:04

sashidhar

4-Dec-09 22:04

You are asking the basic things i think..!
If You dont want any database you can add directly
select listbox
properties items
Add<--
http://www.aspfree.com/c/a/ASP.NET/Using-the-ASPNET-20-ListBox-Control/[^]

vbmadhavi wrote:
tems in listbox without using data base

You can use XML

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Re: help me

<<Tash18>>4-Dec-09 22:32

<<Tash18>>

4-Dec-09 22:32

Thats really Basic stuff.. Hope u must start reading a good book....

ASP.NET MCV

mpavas4-Dec-09 21:17

mpavas

4-Dec-09 21:17

Hi,

I am developing a solution using MVC frame work and now I see that I have top heavily depend on the HTML Helper class and I am not using any of the server objects. It takes lot more time to do any thing now wrt server controls.

How can I introduce/use server controls with out breaking the MVC gudelines.

Regards,
Pavas

AspDotNetStoreFront Skinning

22084-Dec-09 17:10

2208

4-Dec-09 17:10

i am very new in aspdotnetstorefront and want to change skin of storfront
from manual of aspdotnetstorefront i try to follow steps to change skin but i have to face many problems and still unable to change skin

please guide me how i can change skin
i have html and css pages

Regards

Re: AspDotNetStoreFront Skinning

Adam Maras4-Dec-09 17:45

Adam Maras

4-Dec-09 17:45

You have to be familiar with XSLT before you can effectively skin ASPDNSF. Trust me, I've been down that road of hell before.

Adam Maras | Software Developer
Microsoft Certified Professional Developer

Re: AspDotNetStoreFront Skinning

22084-Dec-09 20:05

2208

4-Dec-09 20:05

i have read XSLT but still unable to decide how i should start and how should take first step to change skin.

i am trying to change skin of home page and i am working with template.aspx and style.css which are in skin folder

please can you tell me few tips or steps

Thanks

Best Regards

Munteanu Ciprian4-Dec-09 9:14

Munteanu Ciprian

4-Dec-09 9:14

Ok, here's my problem. I have two pages: one called FirstPage.aspx and the other one called SecondPage.aspx. Here's what I want to do... I start with FirstPage.aspx and here I have a button and when I click it SecondPage.aspx appears. I do that using Response.Redirect("SecondPage.aspx", false). Ok, now when it loads the second page I want to show in a label the name of the first page. How can I do that? If I have used the PostBackUrl property of the button from the first page, this would have been easy. I would have written in the SecondPage:

<br />
 protected void Page_Load(object sender, EventArgs e)<br />
        {<br />
            if (PreviousPage != null)<br />
            {<br />
                Label1.Text = PreviousPage.Title;<br />
            }<br />
<br />
        }<br />

But, I need to show the second page using Response.Redirect("SecondPage.aspx", false). So any help?

Re: Previous Page

Abhishek Sur4-Dec-09 11:55

Abhishek Sur

4-Dec-09 11:55

Just pass the value using Querystring...

Do like this when you navigate to the second page:

Response.Redirect("secondpage.aspx?name=" + pagename);

After you redirect, you will find the value of name easily.

In Page_load :

protected void Page_Load(object sender, EventArgs e)
{
string firstpagename = Request.QueryString["name"];
Label1.Text = firstpagename;
}
I think this is what you needed.

Cheers. Rose | [Rose]

Abhishek Sur
Don't forget to click "Good Answer" if you like this Solution.
My Latest Articles-->
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Basics of Bing Search API using .NET
Microsoft Bing MAP using Javascript

AJAX control Toolkit Accordion Control problem

Faisal Khatri4-Dec-09 5:18

Faisal Khatri

4-Dec-09 5:18

I am using AJAX control toolkit Accordion control on my page.
In accordion pane i have added one pane and in that pane i put some header and content. My code below shows for header and content

<Header>
<div style="float: left; width: 100%;" class="head4">
1. Household Size</div>
</Header>
<Content>
<div style="float: left; width: 50%; background-color: #a9d4ff;">
<asp:Label ID="lbl_Stud_HouseholdSize" runat="server" Text="5"></asp:Label>
</div>
<div style="float: left; width: 50%; background-color: #afffaf;">
<asp:Label ID="lbl_Parent_HSize" runat="server" Text=""></asp:Label></div>
<div style="float: left; width: 50%; background-color: #a9d4ff;">
<div style="float: left; width: 100%;">
<asp:RadioButtonList ID="rd_Shouseholdsize" runat="server" RepeatDirection="Horizontal"
Width="70px" AutoPostBack="True" OnSelectedIndexChanged="rd_householdsize_SelectedIndexChanged">
<asp:ListItem Value="1">Valid</asp:ListItem>
<asp:ListItem Value="0">Correction</asp:ListItem>
</asp:RadioButtonList>
</div>
</div>
</Content>

The problem is when i execute, it does not show anything in pane. Just show the headers.
Any solution will be helpfull.

Re: AJAX control Toolkit Accordion Control problem

keyur satyadev4-Dec-09 21:36

keyur satyadev

4-Dec-09 21:36

look at below link you will get the solution.

http://www.asp.net/AJAX/AjaxControlToolkit/Samples/Accordion/Accordion.aspx

Regards
Keyur Satyadev

Re: AJAX control Toolkit Accordion Control problem

Mark Graham7-Dec-09 0:33

Mark Graham

7-Dec-09 0:33

Here's a sample that works for me. This is one of my accordian snippets from an Ajax-enabled web project. Take a look - you might see something that you have missed. Also, check your CSS - make sure you don't have bugs in there - something that might be hiding a div for example.

<ajaxToolkit:Accordion ID="ajax_acc_Reports" runat="server"
HeaderCssClass="accordionheader" HeaderSelectedCssClass="accordionheader-selected"
SelectedIndex="-1" AutoSize="None" FadeTransitions="true" TransitionDuration="250"
FramesPerSecond="40" RequireOpenedPane="false" SuppressHeaderPostbacks="true">
<Panes>
<ajaxToolkit:AccordionPane ID="apnAnalysis" runat="server" ContentCssClass="accordionpane-selected">
<Header><strong>Analysis</strong></Header>
<Content>
<ul><li><a href="Reports/Analysis/July_09.pdf" title="QA July 09 Report"
target="_blank">QA July 09 Report</a></li></ul>
</Content>
</ajaxToolkit:AccordionPane>
</Panes>
</ajaxToolkit:Accordion>

Please let me know if this does or does not help you

Mark Graham (MCP)
blogging about Design Patterns, C#, Asp.Net, CSS, Javascript and Ajax at: DESIGN CODE TEST [^]

PostBackUrl

Munteanu Ciprian4-Dec-09 3:13

Munteanu Ciprian

4-Dec-09 3:13

Here's my problem: I have a button and when I click it I want to open a new page. I know that I can do this thing very easy by setting the PostBackUrl property of the button. But here's what I want to do: on my page I have a textbox and, for example when I press the button I want to test the text from the TextBox and if it's ok I want to show the new page; if not I want to display a message. I want to do that using c# language, and not JavaScript. I've tried this:

<br />
       protected void Button1_Click(object sender, EventArgs e)<br />
        {<br />
            if (TextBox1.Text == "something")<br />
                Button1.PostBackUrl = "NewPage.aspx";<br />
            else<br />
               ....................<br />
<br />
        }<br />
<br />

Ok, everithing is fine until now. But when I press the button, assuming that in my textbox I've written "something", the NewPage isn't displayed. My current page is loaded again and when I press the button again then NewPage.aspx is displayed. And I don't know why this is happening.
Can anyone help me please?

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