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Code Snippets of vela

Public Function getTamFile(ByVal path As String) As String            
	Dim fi As New FileInfo(path)
	If fi.Exists Then
		If (fi.Length / 1024) > 1024 Then
			Return Math.Round(((fi.Length / 1024) / 1024), 2).ToString() & " Mb"
		Else
			Return Math.Round((fi.Length / 1024), 2).ToString() & " Kb"
		End If
	Else
		Return String.Empty
	End If
End Function

Método para obtener el tamaño de un fichero
Uploaded on 10/10/2008 6:49:43 AM
0 comments
Programming Language: vb.net

fichero

tamaño

Public Shared Function getListadoEnlaces(ByVal ds As DataSet, ByVal texto As String, ByVal enlace As String, ByVal title As String, ByVal titulo_listado As String, ByVal siVacio As String) As String
	Dim i As Integer
	Dim listado As String
	listado = titulo_listado
	listado += "<ul>"
	For i = 0 To ds.Tables(0).Rows.Count - 1
		If title = String.Empty Then
			listado += "<li><a href='" & ds.Tables(0).Rows(i)(enlace) & "'>" & ds.Tables(0).Rows(i)(texto).ToString() & "</a></li>"
		Else
			listado += "<li><a href='" & ds.Tables(0).Rows(i)(enlace) & "' title='" & ds.Tables(0).Rows(i)(title).ToString() & "'>" & ds.Tables(0).Rows(i)(texto).ToString() & "</a></li>"
		End If
	Next
	listado += "</ul>"
	If ds.Tables(0).Rows.Count = 0 Then
		Return siVacio
	Else
		Return listado
	End If
End Function

Crear una lista de enlaces desde un DataSet
Uploaded on 8/28/2008 2:30:01 AM
0 comments
Programming Language: vb.net

accesibilidad web

dataset

html

lista de enlaces

System.IO.MemoryStream ms = new System.IO.MemoryStream(buffer);
System.Drawing.Bitmap b = (System.Drawing.Bitmap)Image.FromStream(ms);
b.Save("fichero.png", System.Drawing.Imaging.ImageFormat.Png);

Pasar un array de bytes a un fichero
Uploaded on 8/17/2008 12:31:19 PM
0 comments
Programming Language: c#

array

file

image

protected void dgEjemplo_ItemDataBound(object sender, DataGridItemEventArgs e)
{

   DataGridItem dr;
   dr = (DataGridItem)e.Item;
   if (e.Item.ItemIndex > 0)
   {
      if (Int32.Parse(dr.Cells[3].Text)<0 )
      {
         dr.Cells[3].ForeColor = System.Drawing.Color.Red;
      }
      else
      {
         dr.Cells[3].ForeColor = System.Drawing.Color.Green;
      }
   }
}

Acceso a las filas de un DataGrid (web)
Uploaded on 8/17/2008 11:58:33 AM
0 comments
Programming Language: c#

datagridview

Int32 i;
String celda;
DataGridViewCell dgc;
//Recorremos el DataGridView con un bucle for
for (i = 0; i < dataGridView1.Rows.Count; i++)
{
   dgc = dataGridView1.Rows[i].Cells[0];
   celda = ((String)dgc.Value) + "\r\n";
   textBox1.Text += celda.Replace(".",",");
}

Recorrer un DataGridView formateando una columna
Uploaded on 8/17/2008 11:40:27 AM
0 comments
Programming Language: c#

datagridview

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