Dadaalgomia
New Member
This is probably another case where I am going about it all wrong. I blame myself. But I am confused by the behavior of FindControl in the DetailsView as shown below.FindControl works until I remove a field from the DataControlFieldCollection. If it matters, this is in a MasterPage.I've experimented with moving the code that removes the DataControlField in Page_Load, Page_PreRender as well as the ModeChanged and ModeChanging events of dvCategories.I've also tried calling dvCategories.Databind() from many places to no avail.Is this expected behavior, and is there a work around?\[code\]protected void ldsCategories_OnInserting(object sender, LinqDataSourceInsertEventArgs e){ //Here findcontrol works unless the commented code from the button event handler is fired. TextBox tb = (TextBox) dvCategories.FindControl("txtInsertParentId"); string ParentName = tb.Text;}protected void btnNew_click(object sender, EventArgs e){ dvCategories.ChangeMode(DetailsViewMode.Insert); //dvCategories.Fields.RemoveAt(3);}\[/code\]ASP Code:\[code\] <asp
etailsView ID="dvCategories" runat="server" AutoGenerateEditButton="True" AutoGenerateInsertButton="True" DataSourceID="ldsCategories" AutoGenerateRows="False" DataKeyNames="CategoryId" DefaultMode="ReadOnly"> <Fields> <asp:BoundField DataField="CategoryId" HeaderText="CategoryId" InsertVisible="False" ReadOnly="True" SortExpression="CategoryId" /> <asp:BoundField DataField="Name" HeaderText="Name" SortExpression="Name" /> <asp:TemplateField HeaderText="Parent Name"> <InsertItemTemplate> <asp:TextBox ID="txtInsertParentId" runat="server"></asp:TextBox> </InsertItemTemplate> </asp:TemplateField> <asp:BoundField DataField="ContentPath" HeaderText="ContentPath" SortExpression="ContentPath" /> <asp:BoundField DataField="DisplayUrl" HeaderText="DisplayUrl" SortExpression="DisplayUrl" /> <asp:BoundField DataField="MetaDesc" HeaderText="MetaDesc" SortExpression="MetaDesc" /> </Fields> </aspetailsView><asp:LinqDataSource ID="ldsCategories" runat="server" ContextTypeName="ProductsDataContext" TableName="Categories" EnableInsert="True" EnableUpdate="True" OnInserting="ldsCategories_OnInserting" EntityTypeName="" Where="CategoryId == @CategoryId && Name == @Name" OnInserted="ldsCategories_OnInserted"> <WhereParameters> <asp:ControlParameter ControlID="txtCategory" Name="Name" PropertyName="Text" Type="String" DefaultValue="" /> </WhereParameters> </asp:LinqDataSource>\[/code\]
etailsView ID="dvCategories" runat="server" AutoGenerateEditButton="True" AutoGenerateInsertButton="True" DataSourceID="ldsCategories" AutoGenerateRows="False" DataKeyNames="CategoryId" DefaultMode="ReadOnly"> <Fields> <asp:BoundField DataField="CategoryId" HeaderText="CategoryId" InsertVisible="False" ReadOnly="True" SortExpression="CategoryId" /> <asp:BoundField DataField="Name" HeaderText="Name" SortExpression="Name" /> <asp:TemplateField HeaderText="Parent Name"> <InsertItemTemplate> <asp:TextBox ID="txtInsertParentId" runat="server"></asp:TextBox> </InsertItemTemplate> </asp:TemplateField> <asp:BoundField DataField="ContentPath" HeaderText="ContentPath" SortExpression="ContentPath" /> <asp:BoundField DataField="DisplayUrl" HeaderText="DisplayUrl" SortExpression="DisplayUrl" /> <asp:BoundField DataField="MetaDesc" HeaderText="MetaDesc" SortExpression="MetaDesc" /> </Fields> </aspetailsView><asp:LinqDataSource ID="ldsCategories" runat="server" ContextTypeName="ProductsDataContext" TableName="Categories" EnableInsert="True" EnableUpdate="True" OnInserting="ldsCategories_OnInserting" EntityTypeName="" Where="CategoryId == @CategoryId && Name == @Name" OnInserted="ldsCategories_OnInserted"> <WhereParameters> <asp:ControlParameter ControlID="txtCategory" Name="Name" PropertyName="Text" Type="String" DefaultValue="" /> </WhereParameters> </asp:LinqDataSource>\[/code\]