I'm using Hierarchical Telerik Grid View.I want to hide the expand/hide Button If the Question is of certain type. I'm trying to achieve this on Grid_ItemDatatbound.
<CW:GridView ID="rGVEvaluationQuestions" runat="server" Width="99%" OnItemDataBound="rGVEvaluationQuestions_ItemDataBound"
OnDetailTableDataBind="rGVEvaluationQuestions_DetailTableDataBind" OnNeedDataSource="rGVEvaluationQuestions_NeedDataSource"
AllowPaging="false" ShowHeader="false" GridLines="Both">
<MasterTableView DataKeyNames="ID" AllowMultiColumnSorting="True">
<DetailTables>
<Telerik:GridTableView DataKeyNames="ID" Name="LabelQuestion" Width="100%" Height="100px">
<Columns>
<Telerik:GridTemplateColumn HeaderText="<%$Resources:LanguageResource, Edit%>" ItemStyle-Width="50px"
DataField="ID">
<ItemTemplate>
<asp:HiddenField ID="hdnEvalID" runat="server" />
<asp:HiddenField ID="hdnEvaluationQuestionID" runat="server" />
<asp:HiddenField ID="hdnEvaluationQuestionTypeID" runat="server" />
<asp:Label ID="lblQuestionNumber" runat="server"></asp:Label>
</ItemTemplate>
</Telerik:GridTemplateColumn>
<Telerik:GridTemplateColumn ItemStyle-HorizontalAlign="Left">
<ItemTemplate>
<asp:Label ID="lblQuestion" runat="server"></asp:Label><br />
<br />
Display="Dynamic"></asp:CustomValidator></td>
</ItemTemplate>
</Telerik:GridTemplateColumn>
//Some Hidden fields and textboxex here
</Columns>
</Telerik:GridTableView>
</DetailTables>
<Columns>
<Telerik:GridTemplateColumn HeaderText="<%$Resources:LanguageResource, Edit%>" ItemStyle-Width="50px"
DataField="ID">
<ItemTemplate>
<asp:HiddenField ID="hdnEvalID" runat="server" />
<asp:HiddenField ID="hdnEvaluationQuestionID" runat="server" />
<asp:HiddenField ID="hdnEvaluationQuestionTypeID" runat="server" />
<asp:Label ID="lblQuestionNumber" runat="server"></asp:Label>
</ItemTemplate>
</Telerik:GridTemplateColumn>
<Telerik:GridTemplateColumn ItemStyle-HorizontalAlign="Left">
<ItemTemplate>
<asp:Label ID="lblQuestion" runat="server"></asp:Label><br />
<br />
//Some Hidden fields and textboxex here
Display="Dynamic"></asp:CustomValidator></td>
</ItemTemplate>
</Telerik:GridTemplateColumn>
</Columns>
</MasterTableView>
</CW:GridView>
On code behind this is what im doing.
if (evalQuestionType == Coursewhere.BLL.Enums.EvaluationQuestionType.Label)
{
if (item.Cells.Count > 0)
{
item.Cells[0].Text = " ";
item.Cells[0].Enabled = true;
}
}
else
{
item.Cells[0].Text = " ";
if (item.Cells[0].Controls.Count>0)
{
item.Cells[0].Controls[0].Visible = false;
}
item.Cells[0].Enabled = false;
item.Cells[0].Style.Add("background", "#8ea3b9 none");
}
item.cell[0] is a td that has <input type Button> .However im unable to find it here in code behind.
Once found i want to set its style.
What am i doing wrong?
Please Not that im able to find item.control[0] which is a td. But unable to fin the control which is inside it.Is it because its not running @server?
EDIT: I found following code that i call on page_prerender. This makes the expand/hide button invisible for all rows. But i want this to happen only for specific Rows.
protected void rGVEvaluationQuestions_PreRender(object sender, EventArgs e)
{
HideExpandColumnRecursive(rGVEvaluationQuestions.MasterTableView);
}
public void HideExpandColumnRecursive(GridTableView tableView)
{
GridItem[] nestedViewItems = tableView.GetItems(GridItemType.NestedView);
foreach (GridNestedViewItem nestedViewItem in nestedViewItems)
{
foreach (GridTableView nestedView in nestedViewItem.NestedTableViews)
{
if (nestedView.Items.Count == 0)
{
TableCell cell = nestedView.ParentItem["ExpandColumn"];
cell.Controls[0].Visible = false;
cell.Text = " ";
nestedViewItem.Visible = false;
}
if (nestedView.HasDetailTables)
{
TableCell cell = nestedView.ParentItem["ExpandColumn"];
if (cell.Controls.Count > 0)
{
cell.Controls[0].Visible = true;
cell.Text = " ";
nestedViewItem.Visible = true;
}
}
}
}
}
can someone please help me in using this function's functionality on databound function so that i could disable/invisible the appropriate Row's expand button?
I Dont know why this didn't work.
if (item.Cells[0].Controls.Count>0)
{
item.Cells[0].Controls[0].Visible = false;
}
Finally this worked.
TableCell tccell = item.Cells[0];
if (evalQuestionType == Coursewhere.BLL.Enums.EvaluationQuestionType.Label)
{
tccell.Controls[0].Visible = true;
}
else
{
tccell.Controls[0].Visible = false;
}