First there is
byte[] buffer = new byte[LENGTH];
MemoryStream memoryStream = new MemoryStream(buffer);
In your example you can use
DXGridControl_Table.SaveLayoutToStream(_userLayout);
byte[] doSomethingwithyourData = _userLayout.GetBuffer();
var length = _userLayout.Length;
With that information you can write the binary data to whatever.
Note that the buffer contains allocated bytes which might be unused.
For example, if the string "test" is written into the MemoryStream
object, the length of the buffer returned from GetBuffer is 256, not
4, with 252 bytes unused. To obtain only the data in the buffer, use
the ToArray method; however, ToArray creates a copy of the data in
memory.
Or
Binary binary = new Binary(_userLayout.ToArray());
Like in the other answer said, there is an implicit conversion on binary:
public static implicit operator Binary(byte[] value) {
return new Binary(value);
}
You requested examples.
A little example about the usage:
namespace Stackoverflow.Hannish.SaveLayout
{
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Windows.Forms;
public partial class Form1 : Form
{
/// <summary>
/// Here we store the layout data as a string. This is the data, that
/// gets saved to disk / database / etc.
/// </summary>
private string layoutdata = string.Empty;
public Form1()
{
this.InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
// Just some FooBar data.
var data = new List<DataValue>
{
new DataValue { Id = 1, Name = "Xyz", IsCool = true },
new DataValue { Id = 2, Name = "Abc", IsCool = false }
};
this.gridControl1.DataSource = data;
}
private void bnLoadLayout_Click(object sender, EventArgs e)
{
using (var stream = new MemoryStream())
{
var strdata = Encoding.Default.GetBytes(this.layoutdata);
stream.Write(strdata, 0, strdata.Length);
stream.Seek(0, SeekOrigin.Begin);
this.gridView1.RestoreLayoutFromStream(stream);
}
}
private void bnSaveLayout_Click(object sender, EventArgs e)
{
using (var stream = new MemoryStream())
{
this.gridView1.SaveLayoutToStream(stream);
this.layoutdata = Encoding.Default.GetString(stream.ToArray());
}
}
}
}
And some byte to file magic:
private void bnLoadBinLayout_Click(object sender, EventArgs e)
{
using (FileStream fstream = File.Open("Layoutdata.bin", FileMode.Open))
{
int length = (int)fstream.Length;
byte[] buffer = new byte[length];
fstream.Read(buffer, 0, length);
var memstream = new MemoryStream(buffer);
this.gridView1.RestoreLayoutFromStream(memstream);
}
}
private void bnSaveBinLayout_Click(object sender, EventArgs e)
{
using (FileStream fstream = File.Create("Layoutdata.bin"))
{
var memstream = new MemoryStream();
this.gridView1.SaveLayoutToStream(memstream);
fstream.Write(memstream.GetBuffer(), 0, (int)memstream.Length);
}
}
... just as example. DevExpress GridView can save the layout itself with SaveLayoutToXml();
