Uploading a file or image in C#.net and storing in a directory or a folder

Your ASPX Code will look like this:


In Ur aspx.cs just write the code on the button click

protected void Submit1_ServerClick(object sender, EventArgs e)
{
if (imageup.PostedFile != null)//Checking for valid file
{
//Since the postedfile.FileNameFileName gives the entire path we use substring functio to rip of the filename alone.
string StrImageName = imageup.PostedFile.FileName.Substring(imageup.PostedFile.FileName.LastIndexOf("\\") + 1);
string StrImageType = imageup.PostedFile.ContentType;
int IntImageSize = imageup.PostedFile.ContentLength;
//Checking for the length of the file.If Length is 0 then the file is not uploaded.
if (IntImageSize <= 0)
{
Response.Write("Uploading of Image" + StrImageName + "failed");
}
else
{
imageup.PostedFile.SaveAs(Server.MapPath(".\\upload\\"+StrImageName));
Response.Write("Your File" +StrImageName + "of type" + StrImageType +" and size"+IntImageSize.ToString() +"bytes was uploaded sucessfully");
}
img.ImageUrl = ("upload" +"/"+ StrImageName);
}
}

Selecting Checkboxes inside the GridView Control:

How to select the checkboxes inside the Gridviewcontrol

After seraching many forums and websites i have developed my project by using this code.
Now in the button click event write this code which i have attached in blog as image:

// StringBuilder object

StringBuilder str = new StringBuilder();

// Select the checkboxes from the GridView control

for (int i = 0; i < GridView1.Rows.Count; i++)

{

GridViewRow row = GridView1.Rows[i];

bool isChecked = ((CheckBox) row.FindControl("chkBox")).Checked;

if (isChecked)

{

// Column 2 is the name column

str.Append(GridView1.Rows[i].Cells[2].Text);

}

}

// prints out the result

Response.Write(str.ToString());

Note:1.If u want to have StringBuilder then u have to include the namespace Using.System.Text
2.If u want to delete the datas after getting the Id then u should rewrite the code as
str.Append(GridView1.Rows[i].Cells[2].Text+",");
so that u will get the output.For ex:1,2,(inorder to delete from database)
other wise if u use
str.Append(GridView1.Rows[i].Cells[2].Text);
u will get the output as 12.

Exporting Gridveiw data int o excel file

hi guys exporting files from gridview is quite simple

u have to just put this code inside buttononclick
code:
protected void btnExcel_Click(object sender, EventArgs e)
{
Response.Clear();
Response.ContentType = "application/vnd.ms-excel";
Response.AddHeader("content-disposition", "attachment;filename=My Report_" + System.DateTime.Today.Date.ToShortDateString().Replace("/", "_") + ".xls");
Response.Charset = "";
System.IO.StringWriter stringWrite = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);



GridView1.RenderControl(htmlWrite);
Response.Write(stringWrite.ToString());
Response.End();

}
if u compile this code i wont work finely.

All you need to do is to override the VerifyRenderingInServerForum event as I have shown below.

public override void VerifyRenderingInServerForm(Control control)

{
// Confirms that an HtmlForm control is rendered for the specified ASP.NET server control at run time.

}

After that if it shows the error

Control 'Gridview1' of type 'GridView' must be placed inside a form tag with runat=server

Then open user .aspx file in that u just add the attribute EnableEventValidation="false" like this

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="accounting.aspx.cs" Inherits="accounting" EnableEventValidation="false" %>



Now ur code will works fine

Connection strings in asp.net

Before writing connection string to ur C#.net applications
First include System.Data.SqlClient Namespace

The System.Data.SqlClient namespace is the .NET Framework Data Provider for SQL Server.

The .NET Framework Data Provider for SQL Server describes a collection of classes used to access a SQL Server database in the managed space. Using the SqlDataAdapter, you can fill a memory-resident DataSet, which you can use to query and update the database.

For more details about click System.Data.SqlClient Namespace

using System.Data.SqlClient;


SqlConnection conn = new SqlConnection("server=SRISHTI-THILLAI;uid=sa;pwd=1234;database=Teeth");
here SRISHTI_THILLAI is the server name
1234 is the password of your server
Teeth is the database name

How to make Apache run ASP.NET / ASP.NET 2.0

Don’t ask me why… but i’ve been asked to make Apache run ASP.NET.

IT Worked !

Even worked with ASP.NET 2.0 Site !

Following are the instruction to make Asp.Net work under apache:

– Install Apache 2.0.54

– Install Mod_AspDotNet

– Add at the end of C:\Program Files\Apache Group\Apache2\conf\httpd.conf the following lines

#asp.net
LoadModule aspdotnet_module "modules/mod_aspdotnet.so"

AddHandler asp.net asax ascx ashx asmx aspx axd config cs csproj licx rem resources resx soap vb vbproj vsdisco webinfo


# Mount the ASP.NET /asp application
AspNetMount /SampleASP "c:/SampleASP"
#/SampleASP is the alias name for asp.net to execute
#"c:/SampleASP" is the actual execution of files/folders in that location

# Map all requests for /asp to the application files
Alias /SampleASP "c:/SampleASP"
#maps /SampleASP request to "c:/SampleASP"
#now to get to the /SampleASP type http://localhost/SampleASP
#It'll redirect http://localhost/SampleASP to "c:/SampleASP"

# Allow asp.net scripts to be executed in the /SampleASP example

Options FollowSymlinks ExecCGI
Order allow,deny
Allow from all
DirectoryIndex index.htm index.aspx
#default the index page to .htm and .aspx


# For all virtual ASP.NET webs, we need the aspnet_client files
# to serve the client-side helper scripts.
AliasMatch /aspnet_client/system_web/(\d+)_(\d+)_(\d+)_(\d+)/(.*) "C:/Windows/Microsoft.NET/Framework/v$1.$2.$3/ASP.NETClientFiles/$4"

Options FollowSymlinks
Order allow,deny
Allow from all


#asp.net

– Create a directory c:\SampleASP and insert in it the index.aspx

– Restart apache server :
Start-> Apache HTTP Server 2.0.54 ->
Control Apache Server -> Restart

– Open Explorer and navigate to http://localhost/SampleASP/index.aspx

If everything worked fine you should get a nice asp.net page working.