Syntax Error: Missing operand after 'classes' operator

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C#

private void textBox1_TextChanged(object sender, EventArgs e)
{
    DataTable dataSet = new DataTable();
    DataView DV = new DataView(dataSet);
    DV.RowFilter = string.Format("select * from classes where title LIKE '%{0}%';", textBox1.Text);
    dataCursuri.DataSource = DV;
}

I want to filter the database table "classes" by column "title".
I made a textbox and the text entered there will filter the column.
(The database I use is PostgreSQL)

I Get an error saying Missing operand after 'classes' operator

I`m asking for some help ,because I can`t figure out how to do it..
Thank you.

Posted 3-May-14 0:12am

Nafeths

Updated 3-May-14 0:28am

DamithSL

v2

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DamithSL · Accepted Answer · 2014-05-03T00:31:00

Solution 1

thr syntax should be

C#

DV.RowFilter =@"Column1 like '%" + textBox1.Text + "%'" ;

Posted 3-May-14 0:31am

DamithSL

Updated 3-May-14 0:32am

v2

Comments

Nafeths 3-May-14 6:39am

Have tried
DV.RowFilter =@"Title like '" + textBox1.Text + "'" ;
and I get "cannot find column [title]"

Also tried to add Tablename.Title and still the same...

DamithSL 3-May-14 6:44am

how you get data for DataTable? can you show that code?

Nafeths 3-May-14 8:35am

Finally I figured out what was wrong...
I declared globally the DataTable variable, something like:
DataTable dataSet;

And also changed the row for syntax when getting data for table to look like:
dataSet = new DataTable();

Now I have this:
private void textBox1_TextChanged(object sender, EventArgs e)
{
DataView DV = new DataView(dataSet);
DV.RowFilter = @"Title like '%" + textBox1.Text + "%'" ;
dataClasses.DataSource = DV;
}

Everything works as desired :)
Thank you DamithSL!

DamithSL 3-May-14 8:47am

you are welcome! :)