Questions on UI for ASP.NET AJAX Forum

1 answer

251 views

How to maintain input value in edit mode when page partially post back

Please help.

Hello. I have put a telerik grid inside an asp update panel, the update panel is updated every 5 seconds by a asp timer on the same page. Inside the timer's OnTick event, I wrote RadGrid.Rebind() since the datasource is changing over time.

There is an edit button column for RadGrid, when user presses this button inside this column to edit corresponding record, the input values are always flushed out by RadGrid.Rebind. By the way, the edit mode of grid is in line editing.

In order to handle this issue, I added code inside the timer's OnTick event before RadGrid.Rebind, that is to check if RadGrid.EditItems.Count > 0 then return and don't rebind. Now the input values won't be flushed but the mouse cursor will always be reset.

Is there any possible way to realize my requirement, keep input values in edit mode while the RadGrid is inside an update panel that updates every few seconds?

Thanks!

Grid

answered on 21 Aug 2023

3 answers

6.7K+ views

Set Selected Value ComboBox

People, can you help to select radcombo item in server side?
Look in my example

drpActive.SelectedValue = 2;

When I try this example above, RadComboBox does not select the element.

Can you help me to solve this, please?

Best Regards,

Milton Camara

ComboBox

updated answer on 18 Aug 2023

1 answer

104 views

Stacked graph with variable steps

Is it possible to have a stacked graph where the y axis labels only show to inticate teh top of each part of the stack, eg 143 then next shows at 159 (based ont eh 2nd value of 16) and so on?

I thought, seeing as you can specify each "series" step that it might be doable but its not working for me

Here is a snapshot of my code:

            graphEmailAlerts.DataSource = eAdatatable
            graphEmailAlerts.DataBind()
            graphEmailAlerts.Visible = True

            graphEmailAlerts.Appearance.FillStyle.BackgroundColor = Drawing.Color.Transparent

            'Y axis
            graphEmailAlerts.PlotArea.YAxis.AxisCrossingValue = 0
            graphEmailAlerts.PlotArea.YAxis.Color = Drawing.Color.Black
            graphEmailAlerts.PlotArea.YAxis.MajorTickType = HtmlChart.TickType.Outside
            graphEmailAlerts.PlotArea.YAxis.MinorTickType = HtmlChart.TickType.None

            Dim totalvalue = eAdatatable.Rows(0).Item("value1") + eAdatatable.Rows(0).Item("value2") + eAdatatable.Rows(0).Item("value3")

            graphEmailAlerts.PlotArea.YAxis.MinValue = 0
            graphEmailAlerts.PlotArea.YAxis.MaxValue = CDec((Math.Ceiling((totalvalue * 1.2) / 100) * 100))

            graphEmailAlerts.PlotArea.YAxis.LabelsAppearance.DataFormatString = "{0} "
            graphEmailAlerts.PlotArea.YAxis.LabelsAppearance.RotationAngle = "0"
            graphEmailAlerts.PlotArea.YAxis.LabelsAppearance.Skip = "0"

            'X-axis
            graphEmailAlerts.PlotArea.XAxis.AxisCrossingValue = 0
            graphEmailAlerts.PlotArea.XAxis.Color = Drawing.Color.Black
            graphEmailAlerts.PlotArea.XAxis.MajorTickType = HtmlChart.TickType.Outside
            graphEmailAlerts.PlotArea.XAxis.MinorTickType = HtmlChart.TickType.None
            graphEmailAlerts.PlotArea.XAxis.DataLabelsField = "type"
            graphEmailAlerts.PlotArea.XAxis.Reversed = False
            graphEmailAlerts.PlotArea.XAxis.BaseUnit = HtmlChart.DateTimeBaseUnit.Auto
            graphEmailAlerts.PlotArea.XAxis.LabelsAppearance.DataFormatString = "{0} "
            graphEmailAlerts.PlotArea.XAxis.LabelsAppearance.RotationAngle = "0"
            graphEmailAlerts.PlotArea.XAxis.LabelsAppearance.Skip = "0"
            graphEmailAlerts.PlotArea.XAxis.LabelsAppearance.Step = "1"


            graphEmailAlerts.PlotArea.Series.Clear()

            Dim cs_ss As New ColumnSeries()
            cs_ss.Stacked = "true"

            cs_ss.DataFieldY = "value1"

            cs_ss.LabelsAppearance.Step = eAdatatable.Rows(0).Item("value1")
            cs_ss.LabelsAppearance.Position = HtmlChart.BarColumnLabelsPosition.Center
            cs_ss.LabelsAppearance.DataFormatString = "Saved Searches {0}"
            cs_ss.Appearance.FillStyle.BackgroundColor = Drawing.Color.FromArgb(165, 213, 162)
            cs_ss.TooltipsAppearance.DataFormatString = "Saved Searches {0}"



            graphEmailAlerts.PlotArea.Series.Add(cs_ss)

            If eAdatatable.Rows(0).Item("value2") <> 0 Then
                Dim cs_tracked As New ColumnSeries()
                cs_tracked.Name = "Tracked"
                cs_tracked.Stacked = "true"

                cs_tracked.DataFieldY = "value2"
                cs_tracked.LabelsAppearance.Position = HtmlChart.BarColumnLabelsPosition.Center
                cs_tracked.LabelsAppearance.DataFormatString = "Tracked {0}"
                cs_tracked.Appearance.FillStyle.BackgroundColor = Drawing.Color.FromArgb(255, 181, 110)
                cs_tracked.TooltipsAppearance.DataFormatString ="Tracked {0}"

               cs_tracked.LabelsAppearance.Step = eAdatatable.Rows(0).Item("value1") + eAdatatable.Rows(0).Item("value2")

                graphEmailAlerts.PlotArea.Series.Add(cs_tracked)
            End If

Chart (HTML5)

updated answer on 14 Aug 2023

0 answers

103 views

RadHtmlChart Display After RadGrid?

I have a situation(s) where trying to display RadHtmlChart in different parts of the page.

When I put the RadHtmlChart towards the top, all displays fine (charts with bound or non bound data).

As soon as put RadGrid on page graphs before rad grid will still render, but any RadHtmlChart that follows displays empty.

whether try changes in .aspx/code behind/javascript can't seem to get anything to render properly.

In case this isn't a me issue but version issue: Telerik version 2015.3.xxxxx

Chart (HTML5)

asked on 11 Aug 2023

2 answers

201 views

How to disable javascript for RAD Controls

Hi,

We have a requirement to render a page in edit mode and read only mode.

The RAD controls that we are using are custom classes that inherits from Rad control classes. For example we have a class called CSRadComboBox that extends from the class RadComboBox and we use the instances of class CSRadComboBox in all the code for the project.

When a page is rendered in the read-only mode to the users, we override the Render method of the RadComboBox and render an System.Web.UI.WebControls.Label object with the contents in it. I have copy pasted the code used to render in the readonly mode for one of the controls below.

protected override void Render(HtmlTextWriter writer)

{

if (IsReadOnly)

{

Label lblValue = new Label();

string display = "--";

if (!string.IsNullOrEmpty(this.SelectedText))

{

display = this.SelectedText;

}

lblValue.Text = display;

lblValue.RenderControl(writer);

}

else

{

base.Render(writer);

}

We have a problem in the readonly pages that there are lot of javascript error that is thrown, "null is null or not an object" and when debugged in visual studio, we could make out that the ajax javascript from the telerik resource is trying to attach events to the labels that has been entered and since it is not able to find the actual control, the javascript error is being thrown.

We need help on how to disable javascript for individual rad controls in the readonly view of the page when actually it is not required at all.

Thanks,
Manoj

Ajax

updated answer on 09 Aug 2023

0 answers

109 views

Stacked Column with 2 Y-axis?

Is it possible to create a stacked column chart and show the steps on axis but the labels on the right axis (instead of a legend)

I am programmatically creating a graph but I only have one set to data to show so didn't think i could use an additional axis?, Showing the label on the column itself is not displayed well if the data is wildly differing, eg 5421 and then 16

Thanks

Chart (HTML5)

asked on 07 Aug 2023

6 answers

15.3K+ views

Could not load file or assembly 'Telerik.Web.UI' or one of its dependencies. The system cannot find the file specified.

i'm so new on telerik
i downloaded telerik tools trial few days ago and i create new web site and try the radgrid so well on the local server
when i put the files on the real server it gives the follwing errors messages
Parser ErrorDescription: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.

Parser Error Message: Could not load file or assembly 'Telerik.Web.UI' or one of its dependencies. The system cannot find the file specified.

Source Error:

Line 1: <%@ Page Title="" Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="Default6.aspx.cs" Inherits="Default6" %>
Line 2:
Line 3: <%@ Register assembly="Telerik.Web.UI" namespace="Telerik.Web.UI" tagprefix="telerik" %>
Line 4:
Line 5: <asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
Source File: /investmentweb5/tajheer/Default6.aspx Line: 3

Assembly Load Trace: The following information can be helpful to determine why the assembly 'Telerik.Web.UI' could not be loaded.

WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].

Installer and VS Extensions

answered on 04 Aug 2023

0 answers

112 views

RAD Editor Paragraph style reset on enter

I am trying to understand what configuration controls the paragraph style behaviour when enter is hit.

If I have applied any of the "Header 1" to "Header 6" paragraph styles, when I enter, the paragraph style is reset back to normal. The same happens if I use the <address> paragraph style.

However, most of the other paragraph styles do not reset but continue to leave it applied. Any custom paragraph style I add also leave the style applied when enter is hit.

Is there a configuration setting that is applied that determines which paragraph styles are reset and which ones are not when enter is hit?

Editor

asked on 02 Aug 2023

2 answers

158 views

RadGrid with ExportToPdf, formatting question

I am trying to use ExportToPdf to generate a .pdf document from a RadGrid. Here's a simplified version of my grid. The labels export to the .pdf, but the table with "TGIF" does not. I need to use HTML formatting to arrange the labels. What am I doing wrong? Thanks!

        <telerik:RadGrid ID="gridTest" runat="server" AutoGenerateColumns="False" 

            Skin="Default" Width="800px"             
            OnItemCreated="gridTest_ItemCreated" >

            <ExportSettings 
                IgnorePaging="true" OpenInNewWindow="true" ExportOnlyData="False">
                <Pdf PaperSize="Letter"></Pdf>
            </ExportSettings>

            <MasterTableView ShowHeader="false">                 
                <Columns>
                    <telerik:GridTemplateColumn DataField="strCaseID" UniqueName="strCaseID" ShowFilterIcon="false" >
                        <ItemTemplate>

                            <table>
                                <tr>
                                    <td>
                                        TGIF!
                                    </td>
                                </tr>
                            </table>
                  
                            <asp:Label ID="lbName"                 runat="server" Text='<%#Eval("strEmployeeFName")%>'                ></asp:Label><br />
                            <asp:Label ID="lbAddressStreet1"       runat="server" Text='<%#Eval("strEmployeeAddressStreet1")%>'       ></asp:Label><br />
                            <asp:Label ID="lbAddressStreet2"       runat="server" Text='<%#Eval("strEmployeeAddressStreet2")%>'       ></asp:Label><br />
                            <asp:Label ID="lbAddressCity"          runat="server" Text='<%#Eval("strEmployeeAddressCity")%>'          ></asp:Label><br />
                            <asp:Label ID="lbAddressState"         runat="server" Text='<%#Eval("strEmployeeAddressState")%>'         ></asp:Label><br />
                            <asp:Label ID="lbAddressZip"           runat="server" Text='<%#Eval("strEmployeeAddressZip")%>'           ></asp:Label><br />

                        </ItemTemplate>
                    </telerik:GridTemplateColumn>
                </Columns>
            </MasterTableView>

        </telerik:RadGrid>
		
        in Page_Load...
		
		    PopulateGrid(gridTest);
            ConfigureGridBeforeExportToPdf();
            gridTest.MasterTableView.ExportToPdf();

        protected void gridTest_ItemCreated(object sender, GridItemEventArgs e)
        {
            try
            {
                ConfigureGridItem(e.Item);
            }
            catch (Exception ex)
            {
                // do stuff
            }
        }

        protected void ConfigureGridItem(GridItem item)
        {
            // ***** THIS IS FOR - each Item

            item.Style["color"] = "purple"; // font color

            if (item is GridHeaderItem)
            {
                item.Visible = false;
            }
            else if (item is GridDataItem)
            {
                item.Style["vertical-align"] = "middle";
                item.Style["text-align"] = "left";
            }

            switch (item.ItemType)
            {
                case GridItemType.Item: item.Style["background-color"] = "lightyellow"; break;
                case GridItemType.AlternatingItem: item.Style["background-color"] = "mistyrose"; break;
            }
        }

        public void ConfigureGridBeforeExportToPdf()
        {
            // ***** THIS IS FOR - entire Grid

            // format - Pdf Settings
            gridTest.ExportSettings.Pdf.BorderType = GridPdfSettings.GridPdfBorderType.OuterBorders;
            gridTest.ExportSettings.Pdf.BorderStyle = GridPdfSettings.GridPdfBorderStyle.Thick;
            gridTest.ExportSettings.Pdf.BorderColor = System.Drawing.Color.HotPink;
            gridTest.ExportSettings.Pdf.PaperSize = GridPaperSize.Letter;
            gridTest.ExportSettings.Pdf.PageHeight = Unit.Parse("162mm");
            gridTest.ExportSettings.Pdf.PageWidth = Unit.Parse("600mm");

            // format - header
            GridItem headerItem = gridTest.MasterTableView.GetItems(GridItemType.Header)[0];
            headerItem.Visible = false;

            // format - footer
            gridTest.ExportSettings.Pdf.PageFooter.MiddleCell.Text = "<?page-number?>";
            gridTest.ExportSettings.Pdf.PageFooter.MiddleCell.TextAlign = GridPdfPageHeaderFooterCell.CellTextAlign.Center;
        }