All About .Net

Tuesday, January 21, 2014

LINQ on Datatable Find where all rows are empty ans remove asp.net

Just move the NOT (!) out one level. You want the items where "all rows are null" is not true, rather than where "all of the rows are not null" is true.

DataTable filteredRows = dt.Rows.Cast<DataRow>()
    .Where(row => !row.ItemArray.All(field => field is System.DBNull))
    .CopyToDataTable();

Monday, January 20, 2014

Loading, Editing, and Saving a Text File in HTML5 Using Javascript

<html>
<body>

<table>
 <tr><td>Text to Save:</td></tr>
 <tr>
  <td colspan="3">
   <textarea id="inputTextToSave" style="width:512px;height:256px"></textarea>
  </td>
 </tr>
 <tr>
  <td>Filename to Save As:</td>
  <td><input id="inputFileNameToSaveAs"></input></td>
  <td><button onclick="saveTextAsFile()">Save Text to File</button></td>
 </tr>
 <tr>
  <td>Select a File to Load:</td>
  <td><input type="file" id="fileToLoad"></td>
  <td><button onclick="loadFileAsText()">Load Selected File</button><td>
 </tr>
</table>

<script type='text/javascript'>

function saveTextAsFile()
{
 var textToWrite = document.getElementById("inputTextToSave").value;
 var textFileAsBlob = new Blob([textToWrite], {type:'text/plain'});
 var fileNameToSaveAs = document.getElementById("inputFileNameToSaveAs").value;

 var downloadLink = document.createElement("a");
 downloadLink.download = fileNameToSaveAs;
 downloadLink.innerHTML = "Download File";
 if (window.webkitURL != null)
 {
  // Chrome allows the link to be clicked
  // without actually adding it to the DOM.
  downloadLink.href = window.webkitURL.createObjectURL(textFileAsBlob);
 }
 else
 {
  // Firefox requires the link to be added to the DOM
  // before it can be clicked.
  downloadLink.href = window.URL.createObjectURL(textFileAsBlob);
  downloadLink.onclick = destroyClickedElement;
  downloadLink.style.display = "none";
  document.body.appendChild(downloadLink);
 }

 downloadLink.click();
}

function destroyClickedElement(event)
{
 document.body.removeChild(event.target);
}

function loadFileAsText()
{
 var fileToLoad = document.getElementById("fileToLoad").files[0];

 var fileReader = new FileReader();
 fileReader.onload = function(fileLoadedEvent) 
 {
  var textFromFileLoaded = fileLoadedEvent.target.result;
  document.getElementById("inputTextToSave").value = textFromFileLoaded;
 };
 fileReader.readAsText(fileToLoad, "UTF-8");
}

</script>

</body>
</html>

Simple way to export SQL Server data to Text Files

EXEC xp_cmdshell 'bcp "SELECT * FROM ACESRepView.Users.XmlData" queryout "d:\data.txt" -S "server name" -U username -P passwrd -c'

write text file in sql server 2008

DECLARE @cmd varchar(256), @var varchar(50)
SET @var = 'Hello world!' +CHAR(13)+CHAR(10)+ 'This is second line'
print @var
SET @cmd = 'echo>d:\myfile.txt ' + @var
EXEC master..xp_cmdshell @cmd, no_output

Enable 'xp_cmdshell' SQL Server

-- To allow advanced options to be changed.
EXEC sp_configure 'show advanced options', 1
GO
-- To update the currently configured value for advanced options.
RECONFIGURE
GO
-- To enable the feature.
EXEC sp_configure 'xp_cmdshell', 1
GO
-- To update the currently configured value for this feature.
RECONFIGURE
GO

Saturday, January 18, 2014

Export HTML to Excel ap.net c#

aspx page code

<form id="form1" runat="server">
<div>
<div runat="server" id="ExportDiv">
<span class="SubSectionHeading">First Table:</span><table rules="all" cellspacing="0"
cellpadding="3" width="922">
<tr>
<th width="200px">
Item Name
</th>
<th width="100px">
Price
</th>
<th width="100px">
Market Price
</th>
<th width="100px">
Actual Price
</th>
<th width="100px">
Difference
</th>
<th width="200px">
Notes
</th>
</tr>
<tr>
<td>
Item 1
</td>
<td>
€78.00
</td>
<td>
€67.00
</td>
<td>
€67.00
</td>
<td>
€0.00
</td>
<td>
description of Item
</td>
</tr>
<tr>
<td>
Item 2
</td>
<td>
€90.00
</td>
<td>
€789.00
</td>
<td>
€90.00
</td>
<td>
-€699.00
</td>
<td>
description of Item
</td>
</tr>
<tr>
<td>
Item 3
</td>
<td>
€900.00
</td>
<td>
€700.00
</td>
<td>
€8.00
</td>
<td>
-€692.00
</td>
<td>
description of Item
</td>
</tr>
<tr>
<td>
Item 4
</td>
<td>
€789.00
</td>
<td>
€78.00
</td>
<td>
€980.00
</td>
<td>
€902.00
</td>
<td>
description of Item
</td>
</tr>
<tfoot>
<tr>
<td style="text-align: center;">
Table 1 Total
</td>
<td>
€1,857.00
</td>
<td>
€1,634.00
</td>
<td>
€1,145.00
</td>
<td>
-€489.00
</td>
<td>
</td>
</tr>
<tfoot>
</table>
</br><span class="SubSectionHeading">Second Table:</span><table rules="all" cellspacing="0"
cellpadding="3" width="922">
<tr>
<tr>
<th width="200px">
Item Name
</th>
<th width="100px">
Price
</th>
<th width="100px">
Market Price
</th>
<th width="100px">
Actual Price
</th>
<th width="100px">
Difference
</th>
<th width="200px">
Notes
</th>
</tr>
<tr>
<td>
Item 1
</td>
<td>
€45.00
</td>
<td>
€67.00
</td>
<td>
€8.00
</td>
<td>
-€59.00
</td>
<td>
description of Item
</td>
</tr>
<tr>
<td>
Item 2
</td>
<td>
€600.00
</td>
<td>
€899.00
</td>
<td>
€65.00
</td>
<td>
-€834.00
</td>
<td>
description of Item
</td>
</tr>
<tr>
<td>
Item 3
</td>
<td>
€7.00
</td>
<td>
€9.00
</td>
<td>
</td>
<td>
</td>
<td>
description of Item
</td>
</tr>
<tr>
<td>
Item 4
</td>
<td>
€78.00
</td>
<td>
€90.00
</td>
<td>
€67.00
</td>
<td>
-€23.00
</td>
<td>
description of Item
</td>
</tr>
<tr>
<td>
Item 5
</td>
<td>
€789.00
</td>
<td>
€980.00
</td>
<td>
€67.00
</td>
<td>
-€913.00
</td>
<td>
description of Item
</td>
</tr>
<tr>
<td>
Item 6
</td>
<td>
€6.00
</td>
<td>
€6.00
</td>
<td>
€78.00
</td>
<td>
€72.00
</td>
<td>
description of Item
</td>
</tr>
<tfoot>
<tr>
<td style="text-align: center;">
Table 2 Total
</td>
<td>
€1,525.00
</td>
<td>
€2,051.00
</td>
<td>
€285.00
</td>
<td>
-€1,757.00
</td>
<td>
</td>
</tr>
<tfoot>
</table>
</br><span class="SubSectionHeading">Total:</span><table rules="all" cellspacing="0"
cellpadding="3" class="rgMasterTableTotal" width="630">
<tr>
<th width="200px">
Table
</th>
<th width="100px">
Price
</th>
<th width="100px">
Market Price
</th>
<th width="100px">
Actual Price
</th>
<th width="100px">
Difference
</th>
</tr>
<tr>
<td style="text-align: center;">
Table 1
</td>
<td>
€1,857.00
</td>
<td>
€1,634.00
</td>
<td>
€1,145.00
</td>
<td>
-€489.00
</td>
</tr>
<tr>
<td style="text-align: center;">
Table 2
</td>
<td>
€1,525.00
</td>
<td>
€2,051.00
</td>
<td>
€285.00
</td>
<td>
-€1,757.00
</td>
</tr>
<tfoot>
<tr style="background-color: #404040; color: White;">
<td style="text-align: center;">
Grand Total
</td>
<td>
€3,382.00
</td>
<td>
€3,685.00
</td>
<td>
€1,430.00
</td>
<td>
-€2,246.00
</td>
</tr>
<tfoot>
</table>
</div>
<asp:Button runat="server" ID="ExportToExcelButton" OnClick="ExportToExcelButton_Click"
Text="Export To Excel" />
</div>
</form>

--------------------------------------------------------------
code hehind

protected void ExportToExcelButton_Click(object sender, EventArgs e)
{
Response.AppendHeader("content-disposition", "attachment;filename=ExportedHtml.xls");
Response.Charset = "";
Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.ContentType = "application/vnd.ms-excel";
this.EnableViewState = false;
Response.Write(ExportDiv.InnerHtml);
Response.End();

}

Set "everyone" Permission to Folder using C# in Asp.Net

string redirectionFolder = @"D:\test\subtest\";

FileSystemAccessRule everyOne = new FileSystemAccessRule("Everyone", FileSystemRights.FullControl,AccessControlType.Allow);
DirectorySecurity dirSecurity = new DirectorySecurity(redirectionFolder, AccessControlSections.Group);
dirSecurity.AddAccessRule(everyOne);
Directory.SetAccessControl(redirectionFolder, dirSecurity);

Note:
If you get the error "Attempted to perform an unauthorized operation"

add the tag (<identity impersonate="true"/>) in your web.config file.