dynamiacally retrieving values of particular column in dataset

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Hi... I am using a dataset and to retrieve a particular column value usual synatx is like

ds.Tables[0].Rows[j]["Name"].ToString

but the column name i am getting dynamically means it can be name, animal, place etc but that is completely dynamic not static so how to pass that value in that dataset line... i tried like this:

i get the dymacic column names in a variable by name like this:

string ColumnNames ;

ds.Tables[0].Rows[j]['+ ColumnNames +'].ToString

so how can i pass this dynamic column name in that line... where i am checking a particular string... THanking you in advance!!

Posted 1-Feb-13 20:51pm

Shruthi.BT

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[no name] 2-Feb-13 2:57am

Try without using ''

2 solutions

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Mantu Singh · Accepted Answer · 2013-02-01T20:58:00

Solution 1

You can use index like arrays as below you wont need name in that case:

ds.Tables[0].Rows[0][0].ToString(); //first row first column
ds.Tables[0].Rows[1][2].ToString(); //second row third column(index start 0)

Best of luck!!

Posted 1-Feb-13 20:58pm

Mantu Singh

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Shruthi.BT 2-Feb-13 4:18am

thank u .. Mantu Singh .... this worked using index... if in case there is a row.. which is blank for ex...

ds.Tables[0].Rows[0][0].ToString() == ""

then i need to delete that.. row. how can that be done.. as i want the null values from dataset to be removed from the dattaset...

please help!!

Mantu Singh 2-Feb-13 4:24am

To delete you can use
ds.Tables[0].Rows[0].Delete(); //delete first row
ds.Tables[0].Rows[1].Delete(); //delete second row

Shruthi.BT 2-Feb-13 5:37am

but this line not working shows error.... as

'object' does not contain a definition for 'Delete'
is there any other way to delete...?

Jibesh · Accepted Answer · 2013-02-01T21:02:00

Solution 2

to retrieve columns value through its name use

C#

string ColumnName = "myColumnsName";
string columnsValue = ds.Tables[0].Rows[j][ColumnName].ToString(); or
string columnsValue = ds.Tables[0].Rows[j][ColumnIndex].ToString();//ColumnIndex is a number representing your column

Posted 1-Feb-13 21:02pm

Jibesh