Databases
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PO
 

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  1. PO
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    <p>I am not an expert in BulkEditGridView control, but this is what I found at Matt Dotson's <a href="http://blogs.msdn.com/b/mattdotson/archive/2005/11/09/real-world-gridview-bulk-editing.aspx" rel="nofollow">blog entry</a></p> <p>You may not be able to know that the row has been updated, unless you watch for the change explicitly. First, for each row add a change handler</p> <pre><code>protected override void InitializeRow(GridViewRow row, DataControlField[] fields) { base.InitializeRow(row, fields); foreach (DataControlFieldCell cell in row.Cells) { if (cell.Controls.Count &gt; 0) { AddChangedHandlers(cell.Controls); } } } </code></pre> <p>You can use this snippet</p> <pre><code>private void AddChangedHandlers(ControlCollection controls) { foreach (Control ctrl in controls) { if (ctrl is TextBox) { ((TextBox)ctrl).TextChanged += new EventHandler(this.HandleRowChanged); } else if (ctrl is CheckBox) { ((CheckBox)ctrl).CheckedChanged += new EventHandler(this.HandleRowChanged); } else if (ctrl is DropDownList) { ((DropDownList)ctrl).SelectedIndexChanged += new EventHandler(this.HandleRowChanged); } } } </code></pre> <p>Then you define a dirty row list and add rows that needs to be updated there (in the event handler)</p> <pre><code> private List&lt;int&gt; dirtyRows = new List&lt;int&gt;(); void HandleRowChanged(object sender, EventArgs args) { GridViewRow row = ((Control) sender).NamingContainer as GridViewRow; if (null != row &amp;&amp; !dirtyRows.Contains(row.RowIndex)) { dirtyRows.Add(row.RowIndex); } } </code></pre> <p>Finally, to commit changes, iterate through all the dirty rows and save changes</p> <pre><code> public void Save() { foreach (int row in dirtyRows) { this.UpdateRow(row, false); } dirtyRows.Clear(); } </code></pre> <p>And here is your ASPX code</p> <pre><code>&lt;asp:Button runat="server" ID="SaveButton" Text="Save Data" /&gt; &lt;blog:BulkEditGridView runat="server" id="EditableGrid" DataSourceID="AdventureWorks" AutoGenerateColumns="False" DataKeyNames="LocationID" SaveButtonID="SaveButton" &gt; &lt;Columns&gt; &lt;asp:BoundField DataField="LocationID" HeaderText="LocationID" InsertVisible="False" ReadOnly="True" SortExpression="LocationID" /&gt; &lt;asp:BoundField DataField="Name" HeaderText="Name" SortExpression="Name" /&gt; &lt;asp:BoundField DataField="Availability" HeaderText="Availability" SortExpression="Availability" /&gt; &lt;asp:BoundField DataField="CostRate" HeaderText="CostRate" SortExpression="CostRate" /&gt; &lt;/Columns&gt; &lt;/blog:BulkEditGridView&gt; </code></pre>
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    1. POGridview why all visible rows are set to dirty?
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    1. USoleksii
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    1. COI saw that, but looking at the source code of the control, that's all built into the control. The give-aways are the use of this., base., and override. This is part of what's confusing me.
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    2. COThis seems to be the code of the BulkEditGridView control itself, so theoretically you just need to call just Save method. I can't see in your code that you actually called Save, have you?
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    3. COHis article says that isn't needed. He's very proud of providing a good developer experience. I'll see if it makes any difference.
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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.

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