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POHow to read .mst(transform) Table along with .msi
 

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  1. POHow to read .mst(transform) Table along with .msi
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    <p>mst + .msi table information. </p> <p>I created following function to read msi Tables</p> <pre><code>// This method returns all rows and columns of a Table specified by Name public DataTable ReadMsiTableByName(string msiFile, string tableName) { DataTable msiTable = new DataTable(tableName); Database database = null; View view = null; try { using (database = new Database(msiFile, DatabaseOpenMode.ReadOnly)) { string sqlQuery = String.Format("SELECT * FROM {0}", tableName); view = database.OpenView(sqlQuery); view.Execute(null); Record record = view.Fetch(); ColumnCollection columnCollection = view.Columns; for (int i = 0; i &lt; columnCollection.Count; i++) { string columnName = columnCollection[i].Name.ToString(); System.Type columnType = columnCollection[i].Type; msiTable.Columns.Add(columnName, columnType.UnderlyingSystemType); } while (record != null) { DataRow row = msiTable.NewRow(); for (int i = 0; i &lt; columnCollection.Count; i++) { string type = columnCollection[i].Type.ToString(); if (type == "System.String") { row[columnCollection[i].Name.ToString()] = record.GetString(columnCollection[i].Name.ToString()); } else if (type == "System.Int16") { row[columnCollection[i].Name.ToString()] = record.GetInteger(columnCollection[i].Name.ToString()); } else if (type == "System.Int32") { row[columnCollection[i].Name.ToString()] = record.GetInteger(columnCollection[i].Name.ToString()); } else if (type == "System.IO.Stream") { System.IO.Stream stream; stream = record.GetStream(columnCollection[i].Name.ToString()); row[columnCollection[i].Name.ToString()] = stream; } } msiTable.Rows.Add(row); record = view.Fetch(); } } } catch (Exception ex) { CommonFn.CreateLog(ex.ToString()); } finally { if (database != null) database.Close(); if (view != null) view.Close(); } return msiTable; } </code></pre> <p>However I am unable to read .mst with this function. I read that you need to use msi transform for it, But I don't want to change the content of msi or mst, I just need to read all the tables. Please point me in right direction. Thanks in Advance :) </p>
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    1. This table or related slice is empty.
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    1. USYan Sklyarenko
    1. USApocalyp5e
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
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    2. PO
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    1. This table or related slice is empty.
    1. COBTW, you aren't disposing some of your classes. Checkout: http://stackoverflow.com/questions/14020285/how-to-convert-windowsinstaller-record-to-system-data-dataset-or-data-table-whi
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      1. POHow to read .mst(transform) Table along with .msi
      1. USChristopher Painter
    2. COThanks for pointing it out :) will be disposing them explicitly. (I know its good practice to dispose everything you used, but isn't it going to be disposed automatically by .net GC? just curious. But thanks again)
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      1. POHow to read .mst(transform) Table along with .msi
      1. USApocalyp5e
    3. COEventually. But the classes have unmanaged (p/invoke) handles that need to be disposed in a more timely manner.
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      1. POHow to read .mst(transform) Table along with .msi
      1. USChristopher Painter
 

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