ADO.Net,C#,Change Datasource

Posted by Raja_89 under Sql Server on 10/1/2015 | Points: 10 | Views : 978 | Status : [Member] | Replies : 2

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Hai
Is it possible to change the datasoucrce of oledb
In my Win form app i am using datasource
Example
Actual Connection string
provider=microsoft.ace.oledb.12.0;data source=E:\\aa;extended properties=""excel 12.0;hdr=yesD

How can i change like this
String Str="E:\\aa"
provider=microsoft.ace.oledb.12.0;data source=str;extended properties=""excel 12.0;hdr=yesD

Using this datasource i am reading value in excel and show to user

Regards

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Posted by: Sheonarayan on: 10/1/2015 [Administrator] HonoraryPlatinum | Points: 25

1	You can do like this String str = "E:\\aa"; "provider=microsoft.ace.oledb.12.0;data source=" + str + ";extended properties=""excel 12.0;hdr=yesD" or String str = "E:\\aa"; var connStr = "provider=microsoft.ace.oledb.12.0;data source={0} ;extended properties=\"\"excel 12.0;hdr=yesD " connStr = string.Format(connStr, str); Thanks, hope this helps. Regards, Sheo Narayan http://www.dotnetfunda.com Raja_89, if this helps please login to Mark As Answer. \| Alert Moderator

You can do like this

String str = "E:\\aa";
"provider=microsoft.ace.oledb.12.0;data source=" + str + ";extended properties=""excel 12.0;hdr=yesD"

String str = "E:\\aa";
var connStr = "provider=microsoft.ace.oledb.12.0;data source={0} ;extended properties=\"\"excel 12.0;hdr=yesD "
connStr  = string.Format(connStr, str);

Thanks, hope this helps.

Regards,
Sheo Narayan
http://www.dotnetfunda.com

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Posted by: Rajnilari2015 on: 10/2/2015 [Member] [Microsoft_MVP] [MVP] Platinum | Points: 25

0	A few more options string str = "E:\\aa"; a) string str1 = new StringBuilder() .Append("provider=microsoft.ace.oledb.12.0;data source=") .Append(str) .Append(";extended properties=\"\"excel 12.0;hdr=yesD") .ToString(); b)string str2 = new StringBuilder() .Append("provider=microsoft.ace.oledb.12.0;data source=") .Append(str) .Append(@";extended properties=""""excel 12.0;hdr=yesD") .ToString(); c)string str3 = string.Concat("provider=microsoft.ace.oledb.12.0;data source=", str, @";extended properties=""""excel 12.0;hdr=yesD"); -- Thanks & Regards, RNA Team Raja_89, if this helps please login to Mark As Answer. \| Alert Moderator

A few more options

string str = "E:\\aa";

a) string str1 = new StringBuilder()

                                .Append("provider=microsoft.ace.oledb.12.0;data source=")

                                .Append(str)

                                .Append(";extended properties=\"\"excel 12.0;hdr=yesD")

                                .ToString();



b)string str2 = new StringBuilder()

                               .Append("provider=microsoft.ace.oledb.12.0;data source=")

                               .Append(str)

                               .Append(@";extended properties=""""excel 12.0;hdr=yesD")

                               .ToString();



c)string str3 = string.Concat("provider=microsoft.ace.oledb.12.0;data source=", str, @";extended properties=""""excel 12.0;hdr=yesD");

--
Thanks & Regards,
RNA Team

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