[RESOLVED] Easy data view syntax question

Code:

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DataSet ds = new DataSet();
        SqlDataAdapter da = new SqlDataAdapter();
        DataView dv = new DataView();
        da.SelectCommand = propertiesCmd;
        da.Fill(ds, "Solution Properties");
        dv = ds.Tables["Solution Properties"].DefaultView;
       
        dv.RowFilter = "[type key] = '-1689071302'";
        String propertyStr = dv.Table.Columns["Value"].ToString();

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All I want to do is get the data from a filtered data view in a string. See the last two lines of code. Thats what Im trying but propertyStr="Value". "Value" is the name of the column whos data I want. propertyStr should be something from my dataview, not just the title of the column. Whats the correct syntax to accomplish this.

This:

Code:

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String propertyStr = dv.Table.Columns["Value"].ToString();

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is specifically getting a column from the table. That's not what you want. First of all you have to get a row, then you have to get the value from that row that is in the column you want. There's no need to go via the table for this because the view exposes the row itself, e.g.

vb.net Code:

For Each row As DataRowView in dv
    MessageBox.Show(row("Value").ToString())
Next row

That will get the value from the row in the column named "Value".

Code:

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dv.RowFilter = "[type key] = '-1689071302'";
string propertyStr = dv[0].Row[0].ToString();

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Oops. Forgot I was in C# land:

Code:

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foreach (DataRowView row in dv)
{
    MessageBox.Show(row["Value"].ToString());
}

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Quote:

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Originally Posted by mar_zim

Code:

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dv.RowFilter = "[type key] = '-1689071302'";
string propertyStr = dv[0].Row[0].ToString();

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this worked for me perfectly. Thanks!

Like I said, there's no need to go via the DataRow when the DataRowView exposes the same data. This:

Code:

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string propertyStr = dv[0].Row[0].ToString();

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does the same as this:

Code:

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string propertyStr = dv[0][0].ToString();

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Quote:

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Originally Posted by jmcilhinney

Like I said, there's no need to go via the DataRow when the DataRowView exposes the same data. This:

Code:

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string propertyStr = dv[0].Row[0].ToString();

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does the same as this:

Code:

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string propertyStr = dv[0][0].ToString();

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i see what your saying. very good. thanks.