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The correct way to do this with the DataGridView is to use the CellFormating event, described <a href="http://msdn.microsoft.com/en-us/library/system.windows.forms.datagridview.cellformatting.aspx" rel="nofollow">here</a> on MSDN. There is a nice example of what you can do in a <a href="http://msdn.microsoft.com/en-us/library/z1cc356h.aspx" rel="nofollow">HowTo Article</a>, but I've also given an overview here. First you need to subscribe to the <code>CellFormating</code> event, either through the design view or through code: <pre><code>this.dataGridView1.CellFormatting += new System.Windows.Forms.DataGridViewCellFormattingEventHandler(this.dataGridView1_CellFormatting); </code></pre> Then in the event handler you place your logic to format your data for display: <pre><code>private void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e) { if (!dataGridView1.Rows[e.RowIndex].IsNewRow && e.ColumnIndex == dataGridView1.Columns["InterestingColumn"].Index) { if (e.Value == null) return; if (e.Value.ToString() == "TargetValue") { e.Value = "DisplayValue"; } } } </code></pre> This does not alter the underlying value in the DataSet - only the displayed value, and the event triggers after each cell leave event, so users can type data into the grid (if it is not readonly) and the formatting will be applied. Of course all this is customisable as you wish, but the CellFormating event is the best place to start.
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1. POChange text in a datagridview fed from a datatable
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1. USDavid Hall
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1. USDavid Hall
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1. COThanks! it worked, although I had to remove the first condition (datagridview1.Rows[e.ColumIndex].IsNewRow. Why would you use the column index as an index of a row ?
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2. COSorry - that was just a typo. You would of course use the row index. Fixed now.
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Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.