In PowerBIDeskTop open SSAS service, and a difference between the nature of Sqlserver is opened by the former its port number is randomly generated, that is, the last open port number obtained, the next time off and back on, the system assigns it to a new port number, and the latter because it is the server version, SSAS server port number is fixed, and the server are generally long-term open, change the port number does not exist data connection string to cause the situation to change.
Cipian corresponding functions implemented by: Wave 3 - (connection PowerbiDesktop Excel pivot table data model) and PowerbiDesktop interconnection https://www.jianshu.com/p/e05460ad407d
Excel connection PowerBIDeskTop port number changed how do?
Because after this problem, you must re-update in Excel on its port number, we can ensure that open PowerBIDeskTop the SSAS service again, the original connection string is stored in the Excel reference data and the results can still maintain SSAS model has connected relationship.
So there have been updating the functional requirements of the connection string, of course, reduce the user's operation as much as possible, so more friendly interface to guide the user to make the necessary recognition to re-match.
Excel and PowerBIDeskTop connected, is connected to undertake a workbook, so only connection traversal workbook, to show it to the user.
private void formPbidUpdateConnect_Load(object sender, EventArgs e)
{
foreach (Excel.WorkbookConnection wkbCnn in Common.ExcelApp.ActiveWorkbook.Connections)
{
if (wkbCnn.Description == "pbidConnection")
{
int rowIndex = this.dataGridView1.Rows.Add();
this.dataGridView1.Rows[rowIndex].Cells[0].Value = wkbCnn.Name;
}
}
this.fileName.Width = this.workbookConnect.Width + 50;
this.Width = this.fileName.Width * 2 + 80;
pbidPortTittleMappings = PbidConnection.GetPbidPortTittleMappings();
this.fileName.Items.AddRange(pbidPortTittleMappings.Select(s => s.FileName + "|" + s.Port).ToArray());
}The final Excel workbook connection, regular expressions, the original port number to replace what you can just use the next.
private void btnEnter_Click(object sender, EventArgs e)
{
foreach (DataGridViewRow row in this.dataGridView1.Rows)
{
if (row.Cells[1].Value!=null)
{
Excel.WorkbookConnection wkbCnn = Common.ExcelApp.ActiveWorkbook.Connections[row.Cells[0].Value];
int newport = int.Parse(row.Cells[1].Value.ToString().Split(new char[] { '|' })[1]);
string newDbName = pbidPortTittleMappings.Where(s => s.Port == newport)
.Select(t => t.DbName).FirstOrDefault();
string newModelName = pbidPortTittleMappings.Where(s => s.Port == newport)
.Select(t => t.ModelName).FirstOrDefault();
string wkbcnnString = wkbCnn.OLEDBConnection.Connection;
wkbcnnString = Regex.Replace(wkbcnnString, @"(?<=localhost:)\d+", newport.ToString());
wkbcnnString = Regex.Replace(wkbcnnString, @"(?<=Initial Catalog=)[^;]+", newDbName);
wkbCnn.OLEDBConnection.Connection = wkbcnnString;
wkbCnn.OLEDBConnection.CommandText = newModelName;
}
}
this.Close();
}Epilogue
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Technical route from an ordinary user, through the Excel software to learn, go from the data world, Coban non-IT professionals.
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