将数据写入 MSI 数据库 [英] Writing Data to MSI Database
本文介绍了将数据写入 MSI 数据库的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我需要能够更新一个二进制表,我这样做:
I need to be able to update a binary table and i do it like so:
View v = session.Database.OpenView("SELECT `Data` FROM `Binary` WHERE `Name` = '{0}'", binaryKeyName);
v.Execute();
var IsReadOnly = session.Database.IsReadOnly;
Record r = v.Fetch();
StreamReader reader = new StreamReader(r.GetStream("Data"));
string text = reader.ReadToEnd();
text = text.Replace(@"Test12345", "TTTest");
byte[] byteArray = Encoding.ASCII.GetBytes(text);
MemoryStream stream = new MemoryStream(byteArray);
一旦我有了流,我想更新数据库表.我该怎么做?
Once I have the stream I would like to update database table. How do i do it?
谢谢
推荐答案
WiX 附带的 dtf.chm
文档包含以下有关如何更新二进制表的示例:
The dtf.chm
documentation, which comes with WiX, contains the following sample on how to update the binary table:
Database db = null;
View view = null;
Record rec = null;
try
{
db = new Database("product.msi", DatabaseOpenMode.Direct);
view = db.OpenView("UPDATE `Binary` SET `Data` = ? WHERE `Name` = '{0}'", binName))
rec = new Record(1);
rec.SetStream(1, binFile);
view.Execute(rec);
db.Commit();
}
finally
{
if (rec != null) rec.Close();
if (view != null) view.Close();
if (db != null) db.Close();
}
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