Questions on UI for ASP.NET AJAX Forum

3 answers

389 views

Hi,

I am trying to add tabs, pageviews dynamically, and then iframes in the pageviews. However, on postback, the iframes are not persisted.

HtmlGenericControl iframe = new HtmlGenericControl("iframeA");

PageView pageView = new PageView();

pageView.Controls.Add(iframe);
multiPage.PageViews.Add(pageView);

However, if i statically do it (as below), the iframes are persisted. Can you please show me a way to make this work.

Thanks,
Raj

<telerik:RadPageView id="Pageview2" runat="server" >
                                <iframe id="ContentIframe2" width=100% height="600px" frameborder="0" scrolling="auto" runat="server"></iframe>
                            </telerik:RadPageView>
                            <telerik:RadPageView id="Pageview3" runat="server" >
                                <iframe id="ContentIframe3" width=100% height="600px" frameborder="0" scrolling="auto" runat="server"></iframe>
                            </telerik:RadPageView>
                            <telerik:RadPageView id="Pageview4" runat="server" >
                                <iframe id="ContentIframe4" width=100% height="600px" frameborder="0" scrolling="auto" runat="server"></iframe>
                            </telerik:RadPageView>
                            <telerik:RadPageView id="Pageview5" runat="server" >
                                <iframe id="ContentIframe5" width=100% height="600px" frameborder="0" scrolling="auto" runat="server"></iframe>
                            </telerik:RadPageView>

TabStrip

answered on 15 Jun 2016

9 answers

455 views

Export to Excel - Boolean challenge

Hi,

I need to place an "X" in all cells that have a true value in the export. I've seen similar posts, but I am using Format="Xlsx" and trying to accomplish this task using the OnInfrastructureExporting event handler as follows:

protected void grdUserAdmin_InfrastructureExporting(object sender, GridInfrastructureExportingEventArgs e)

{

var colCount = e.ExportStructure.Tables[0].Columns.Count;

var rowCount = e.ExportStructure.Tables[0].Rows.Count;

ExportStyle headerStyle = new ExportStyle();

headerStyle.ForeColor = Color.White;

headerStyle.BackColor = Color.Blue;

headerStyle.Font.Bold = true;

// Set the header style for all columns

for (var i = 1; i <= colCount; i++)

{

e.ExportStructure.Tables[0].Cells[i, 1].Style = headerStyle;

e.ExportStructure.Tables[0].Columns[i].Width = 200; // Would like auto-width !!

}

// Place an "X" in cells assigned to a boolean data field if value is true

var headerText = "";

for (var c = 1; c <= colCount; c++)

{

for (var r = 1; r <= rowCount; r++)

{

if (r == 1)

{

headerText = e.ExportStructure.Tables[0].Cells[c, r].Value.ToString();

continue;

}

if (headerText == "Active")

{

var x = e.ExportStructure.Tables[0].Cells[c, r].Value.ToString();

System.Diagnostics.Debug.WriteLine("Cell Value: " + x);

if (Convert.ToBoolean(e.ExportStructure.Tables[0].Cells[c, r].Value.ToString()))

e.ExportStructure.Tables[0].Cells[c, r].Value = "X";

}

The value for the variable x above is always "" or null (hard to tell in the Output section of VS).
I know that my data for column Active should have all true values.
The conversion to boolean fails!
I think I'm close.
What am I doing wrong?
Thanks in advance for any advice.
Jim

Grid

answered on 14 Jun 2016

11 answers

798 views

How to set focus to RadTextBox in RadGrid EditForm

I have a RadGrid that uses an EditForm template in order to lay the controls out according to the wishes of the customer. I have not been able to get the RadTextBox within the template to receive focus when it goes into edit mode.

<telerik:RadGrid ID="rgComments" runat="server" AutoGenerateColumns="False" Width="100%" AllowSorting="True" CellSpacing="0" GridLines="None" Height="455px">

<MasterTableView CommandItemDisplay="Top" CommandItemSettings-AddNewRecordText="Add Comment" CommandItemSettings-ShowRefreshButton="true" TableLayout="Fixed" EditMode="EditForms" DataKeyNames="iNoteID,qwImageID">

<EditFormSettings EditFormType="Template">

<FormTemplate>

<div style="position: relative; height: 215px; width: 800px;">

<telerik:RadTextBox ID="rtbComment" runat="server" Width="795px" Height="165px" ClientEvents-OnLoad="taComment_onload" />

<asp:ImageButton ID="ibSave" runat="server" ImageUrl="~/Images/Save.png"

CommandName='<%# (Container is GridEditFormInsertItem) ? "PerformInsert" : "Update" %>' style="position: absolute; left: 10px; top: 180px;" />

<asp:ImageButton ID="ibCancel" runat="server" ImageUrl="~/Images/Cancel.png" CommandName="Cancel" style="position: absolute; left: 70px; top: 180px;" />

</div>

</FormTemplate>

</EditFormSettings>

<Columns>

<telerik:GridEditCommandColumn ButtonType="ImageButton" HeaderStyle-Width="30px" ItemStyle-HorizontalAlign="Center" EditImageUrl="~/Images/Edit.png" UniqueName="gecEdit" />

<telerik:GridBoundColumn DataField="dtCreateDate" HeaderText="Create Date" HeaderStyle-Width="66" HeaderStyle-HorizontalAlign="Center" DataFormatString="{0:MM/dd/yyyy HH:mm}" ReadOnly="True" UniqueName="gbc_dtCreateDate" />

<telerik:GridBoundColumn DataField="cLoginName" HeaderText="Create By" HeaderStyle-Width="66" HeaderStyle-HorizontalAlign="Center" ItemStyle-HorizontalAlign="Center" ReadOnly="True" UniqueName="gbc_cLoginName" />

<telerik:GridBoundColumn DataField="cNote" HeaderText="Comment" HeaderStyle-HorizontalAlign="Center" ItemStyle-HorizontalAlign="Left" HeaderStyle-Width="500px" MaxLength="1024" UniqueName="gbc_cNote" />

<telerik:GridButtonColumn ButtonType="ImageButton" CommandName="Delete" HeaderStyle-Width="30px" ItemStyle-HorizontalAlign="Center" ImageUrl="~/Images/Delete.png" UniqueName="bcDelete" />

</Columns>

</MasterTableView>

<ClientSettings><Scrolling AllowScroll="true" /></ClientSettings>

</telerik:RadGrid>

When the form goes into edit mode I want to put the current Comment text into the RadTextBox and set focus there. I am using this code to try and do that.

void rgComments_ItemDataBound(object sender, GridItemEventArgs e)

{

if (e.Item.IsInEditMode && e.Item is GridEditableItem)

{

GridEditableItem item = e.Item as GridEditableItem;

RadTextBox radTextBox = ((RadTextBox)(((GridEditFormItem)(item)).FindControl("rtbComment")));

// It works if I comment out this line, but then control is not populated with the necessary text

radTextBox.Text = ((DataRowView)(((GridItem)(item)).DataItem)).Row["cNote"].ToString();

radTextBox.Focus();

}

I have tried adding a client-side onload event handler for the control to set the focus. It gets called but still won't put focus into the control.

Can you help me figure this out?

John

Input

answered on 14 Jun 2016

7 answers

449 views

gridclientselectcolumn headertext

Is there a way to get the headertext to be visible in the header of a GridClientSelectColumn?
I have a customer who insists that "nobody is going to know what it does" if there isn't any text in the header...

Grid

answered on 14 Jun 2016

1 answer

140 views

How to restore grid filtering settings on page load

I had setup a way to restore the filtering/sorting of the grid through session on page load when it went to "NeedDataSource" function. However, the data I am currently populating has a lot of data, and had to optimize the performance of the grid by starting to use the entitydatasource that you specified in the documentation. The grid is faster, but I am unsure how to restore the filter/sort settings the user made now. Is there another way I can restore?

Grid

answered on 14 Jun 2016

1 answer

199 views

Filtering on multiple column in dynamic Telerik RAD grid

Dear Friends,

I am preparing dynamic grid using VB.net and RAD grid where columns are getting generated in Run Time. I am trying to apply filter (inbuilt filter) on multiple column at time but application is throwing exception (is neither a DataColumn nor a DataRelation for table Table). This error occurs when I try to apply filter. I am unable to identify root cause. Any input would be appreciated. I am using NeedDataSource() event of Radgrid and this event is throwing above mentioned exception on applying filter.

Thanks in advance.
Lokesh

Grid

answered on 14 Jun 2016

1 answer

135 views

Simple nested Grid question

I know I have done this before, but I can't remember how....don't you hate being in that situation?!?

I want a simple nested table, of say customers and their orders, displayed in a fashion where customers are the master table, and orders are the detail table. In other words, the grid shows a list of customers and you can expand a customer to see their orders. I can easily get the data in a datatable where the customer data is duplicated on each row which represents a unique order. I want to setup the grid so that I can do one bind and have it all populated. All of the examples now show a separate databind for each of the child(nested) tables. For efficiency and simplicity, I'd like to avoid all of the extra databinds. I know I've done this in the past...

Any help or examples would be greatly appreciated.

Thanks in advance,

Grid

answered on 14 Jun 2016

1 answer

90 views

OnBatcheditdopening event if rad grid in batch edit mode

I am facing the issue with batchedit when I am trying to get the dropdown list from the grid edit row and append its list with new item. All this am trying to do in a client function "Batcheditopening". I have a rad grid with batch edit mode . In editor template I have a dropdown list which I am binding with database at grid pretender event. I have a requirement where I have to append a new item in the dropdown based on the value of template cell.

Please help me to solve this scenario.

Grid

answered on 14 Jun 2016

1 answer

107 views

ScatterLine enable to move second y axis

I have a chart that has an additional Y Axis which should be on the far right of the chart.

If the chart and series is set as a "Line" I can set the AxisCrossingPoint value for the second Axis and it shows it correctly but if I have the chart type set as "ScatterLine" (which I require) it does not move the Axis and just stays on the left of the chart next to the first Y Axis.

No matter what value I under it does not move at all. I've tried it in code behind and in the HTML. Very strange as it works fine for "Line" type series/chart.

Is this a limitation of ScatterLine?

Chart (HTML5)

answered on 14 Jun 2016

1 answer

101 views

TreeView set child not to accept children

I have a situation where the data coming in because of the data coming from two separate tables can have the same ID. The ID is mapped to the NodeID (DataFieldID) of the tree view. Because of this I can have two nodes with the same id. Instead of changing my data model converting the ID (int) to a ID (GUID) I would like to see if there is a mechanism in the TreeView where I can check to see if when adding a node check to see if the parent node is accepting a child or not. The below structure represents my tree structure.

When tree evaluates Node 75 with ParentID 37, I want it at the bottom node as it’s a folder vs the first 37 as it not a node that can have children.

NodeID 75

ParentID 37

NodeID 18

ParentID null

NodeID 69

ParentID 18

NodeID 56

ParentID 18

NodeID 37 ß I don’t want it here

Parent 18

NodeID 1