ASP Gridviews in Sharepoint Visual WebPart

Hi all,
I have developed a grid view in sharepoint visual webpart using asp.net grid view. In that grid view I have footer row ,in footer row i have one drop down list ,label,one text box etc...
When even I am changing the drop down It needs to post back and get some value and assigned to label. this is working fine but when there are no rows in grid view at that time while changing drop down list I am getting one empty row in grid
view for that one of my colleague suggested that keep a update panel for both drop down and label . I kept and working fine but when I am trying to insert a row from footer with out any data selection again I am getting am empty row in grid view
Could you please any help me out from this error
Thanks & Regards,
Nag

Hi Vivek,
I am using that code logic previously, when I am opening very first time it is showing "No Results found" text but in my Case there is a drop down list in footer that needs to the data from server so "autopost back"
property is true for drop down list
While I am changing drop down the grid view automatically adding an empty row without showing any text and also it is showing edit and delete button.
Please Help me.
Thanks & Regards,
Nag

Similar Messages

Perform CRUD operation on List using Gridview control (SharePoint Visual webpart)

Hi Friends,
I have SharePoint Visual webpart and I want to perform CRUD operation on SharePoint list using Gridview control.
Is there any other way to implement it , please suggest me the solution approach.
Thanks,
Digambar Kashid

Is there any specific reason you dont want to use Out Of the Box list CRUD operation? Anyways, if you want to use custom approach I think SPGridView is good approach.
There are some samples available for what you are trying to achieve.
Samples on how to use SharePoint's GridView
Also There is similar thread which might be helpful as well.
http://social.msdn.microsoft.com/Forums/en-US/7b4f69e9-36b5-4188-8b75-1f727d0bb594/is-there-any-posibility-to-do-crud-operations-with-gridview-control?forum=sharepointdevelopmentprevious
Amit

PAging in Asp Repeater control in Visual Webpart

hi
i am trying to create a visual webpart in which i am getting 100 items from the list and showing it on to the page using ASP:Repeater control now i've to apply paging on the Repeater control,can anyone tell me how do i apply paging in Asp.Net Repeater control.

Hi,
There's no built-in pagination in the Repeater control, you can achieve pagination in the Repeater control by creating another Repeater control for pages and use PagedDataSource as it's source.
Here is a blog with the code for your reference:
Repeater control with paging in share point 2010 using c#
http://sharepointdotnetfalls.blogspot.com/2013/07/repeater-control-with-paging-in-share.html
Best Regards
Dennis Guo
TechNet Community Support

Auto Populate Textbox in sharepoint Visual Webpart

Hi all,
I have requirement in My organization. all the web users need to be auto populating while typing letters.
I have done this earlier in .net with web method but web method scenario is not working in visual webpart
Can any one help me out ....
Thanks
Nag

Hi Nag,
From your description, my understanding is that you want to ac auto populate/suggest all the users from current web in textbox in visual webpart.
You could use jQuery to AutoComplete text box in SharePoint 2010 Visual Web part. Please refer to this article(you need to replace the data source ”availableTags”
in the demo):
http://sharepointwings.blogspot.in/2012/05/autocomplete-textbox-using-jquery-in.html
Please refer to this article about how to add jQuery to SharePoint Visual Web part:
http://sharepointdragons.com/2012/04/18/adding-jquery-to-a-visual-web-part-and-then-implement-parentchild-radio-buttons/
Best Regards,
Vincent Han
TechNet Community Support
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact
[email protected]

Visual webpart gridview control Export to Excel

Hi,
I am trying to implement export to excel using visual webpart, first I got the error put "I am getting error on
GridView1.RenderControl(htw); line and the error is Control 'ctl00_ContentPlaceHolder1_GridView1' of type 'GridView' must be placed inside a form tag with runat=server. ",And when I am using
public override void
VerifyRenderingInServerForm(Control control)
/* Confirms that an HtmlForm control is rendered for the specified ASP.NET
server control at run time. */
I am getting error that it cannot be overridden .How to resolve this issue

Hi,
If you want to export gridview to Excel in visual web part, I suggest you refer to the following articles to achieve it.
ASP.Net 2.0: Export GridView to Excel
http://www.c-sharpcorner.com/UploadFile/DipalChoksi/exportxl_asp2_dc11032006003657AM/exportxl_asp2_dc.aspx
Export Gridview to Excel in Sharepoint (ascx)
http://forums.asp.net/t/1461411.aspx?Export+Gridview+to+Excel+in+Sharepoint+ascx+Export
to Excel - From SharePoint user control based web part
http://www.sharepointdiary.com/2011/02/export-to-excel-from-sharepoint-user-control-webpart.html
Best Regards
TechNet Community Support
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact
[email protected]

Sharepoint 2010 Custom Visual Webpart button click event firing on page refresh

I have developed a Visual Webpart to create a list in SP using vs2010 and the button click event I have written the list create method. If I click the button list is created successfully. And I refresh the page again list is creating(Again button
click event is triggering).please help me to solve the issue.
protected void Button1_Click(object sender,
EventArgs e)
            SPWeb web
= SPContext.Current.Web;
            //SPList list=web.Lists["Auto"];
            SPList list
= web.Lists[DropDownList2.SelectedItem.Text];
            if
(string.IsNullOrEmpty(TextBox1.Text)
|| string.IsNullOrEmpty(DropDownList1.Text))
Label4.Text =
"Fields Are Empty";
            else
if (DropDownList1.SelectedItem.Text
== "Single line of Text")
                list.Fields.Add(TextBox1.Text,
SPFieldType.Text,
true);
SPView viewname = list.Views["All Items"];
                viewname.ViewFields.Add(TextBox1.Text);
//viewname.Update();
                list.Update();
Label4.Text =
"Field Created Successfully";
TextBox1.Text =
string.Empty;
// Label4.Text = string.Empty;

Hi,
This is because the request is sent to the server when you refresh the page.
A workaround for this is that we can “provide a refresh link that redirects to the same page (or if you have some action causing the refresh programmatically, you could just
redirect to the page after that, with Response.Redirect)
so that page is requested by the browser (with GET method, default with hyperlinks)”.
More information:
http://social.msdn.microsoft.com/Forums/sharepoint/en-US/45648b39-1229-405c-ac9e-60eb82905982/click-event-getting-fired-on-page-refresh
Or we can use the Session to save a value which used as a flag for us to check whether it is a page refresh and perform accordingly.
http://www.codeproject.com/Articles/28099/Refresh-Page-Issue-in-ASP-Net
http://www.codeproject.com/Articles/10240/Detecting-Page-Refresh
Thanks
Patrick Liang
TechNet Community Support

Could not load file or assembly AjaxToolkit error in SharePoint 2013 Visual Webpart

I wanted to use ajax controls in visual webpart for sharepoint 2013 so i followed steps.
1-I cut this snippet (see below) from <head></head> Section and paste in <body></body> Section for my master page since it's a requirement for SharePoint 2013 ajax functionality.
Snippet:




2-downloaded a latest ajax tool kit and then added ajax toolkit dll from the toolkit library in my solution's bin-->debug folder
now add ajax entries in web.config in these sections
in <SafeControls>
<SafeControl Assembly="ajaxcontroltoolkit, Version=4.1.7.1213, Culture=neutral, PublicKeyToken=28f01b0e84b6d53e, processorArchitecture=MSIL" Namespace="AjaxControlToolkit" TypeName="*" />
in <assemblies>
<add assembly="AjaxControlToolkit, Version=4.1.7.1213, Culture=neutral, PublicKeyToken=28f01b0e84b6d53e" />
in <controls>
<add tagPrefix="ajax" namespace="AjaxControlToolkit" assembly="AjaxControlToolkit, Version=4.1.7.1213, Culture=neutral, PublicKeyToken=28f01b0e84b6d53e" />
finally registered ajax in visual web part as
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxtoolkit" %>
added following calender control
<asp:TextBox MaxLength="10" ID="txtToDate" runat="server" CssClass="FormTextBoxSmall"></asp:TextBox>
<asp:ImageButton ID="calReqDateTo" runat="server" ImageUrl="" />
<ajaxtoolkit:CalendarExtender id="CalendarExtender2" runat="server" targetcontrolid="txtToDate"
format="dd/MM/yyyy" popupbuttonid="calReqDateTo" />
reset iis and deployed my solution but when i deployed it throws error
"could not load file or assembly AjaxToolkit,Version=4.1.7.1213 "
please help

Hi,
In this below thread they have discussed and resolved your issue.
http://social.technet.microsoft.com/Forums/sharepoint/en-US/60fa19fe-86a0-446b-b61f-11a82fe4287f/how-to-implement-ajax-toolkit-for-sharepoint2013?forum=sharepointdevelopment&prof=required
Please let us know if you need further details
Sekar - Our life is short, so help others to grow
Whenever you see a reply and if you think is helpful, click "Vote As Helpful"! And whenever
you see a reply being an answer to the question of the thread, click "Mark As Answer

Asynchronous visual webpart for SharePoint 2013

HI,
How to create asynchronous visual webparts in SharePoint 2013 (VS 2012) . I can see lot of examples for 2010 version, but not for SP 2013.
I have 2 visual webparts, which I want to make it as a asynchronous webpart. One webpart has the code written in Javascript client object model(loads lot of images), another is a server side webpart which has a SPGridview.
Is there any sample code available for SP 2013?
Thanks

Hi,
Please try to convert the SharePoint 2010 project to SharePoint 2013.
http://sadomovalex.blogspot.kr/2013/02/convert-visual-studio-sharepoint-2010.html
In SharePoint 2013, we can create a visual web part, then we can use jQuery Ajax and REST API to achieve asynchronous data loading.
More information:
http://www.dotnetcurry.com/showarticle.aspx?ID=1009
http://asyncwebpartframewrk.codeplex.com/releases/view/52459
Thanks,
Dennis Guo
TechNet Community Support
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact
[email protected]
Dennis Guo
TechNet Community Support

SharePoint DatePicker is not working in Visual webpart

Hi,
The sharepoint date picker is not working for Visual webparts created in VS 2012 (SP 2013).
In my visual webpart, I added the form digest, and then the sharePoint date control.
<script type="text/javascript" src="/_layouts/15/datepicker.js"></script>
<SharePoint:DateTimeControl ID="dtDate" runat="server" DateOnly="true" />
I get the "/ error in Application". Many websites are saying to add the below line to the datepicker:
<SharePoint:DateTimeControl ID="dtDate" runat="server"
DateOnly="true" DatePickerFrameUrl="<%
$SPUrl:~sitecollection/_layouts/15/iframe.aspx %>" />
But adding the "DatePickerFrameUrl" gives error in the "InitializeControl()" method available in OnInit().
Error: The name InitializeControl does not exist in the current context.
I have checked this:
http://developmentsimplyput.blogspot.in/2013/04/sharepoint-datetimecontrol-issue-when.html
http://sharepoint.stackexchange.com/questions/57092/sharepointdatetimecontrol-crashes-in-sp2013-webpart
but did not solve the issue. Also creating a root site for just a DatePicker control is not an option for me.
Has anybody found a solution to this?
How to use the SharePoint datepicker in visual webpart for SP 2013?
Thanks

hi
did you try to investigate the initial error more deeply, e.g. check stack trace in the logs? In our case it worked quite straightforward (but it was in SP2010) by adding the following control on ascx control:
<SharePoint:DateTimeControl ID="Foo" OnDateChanged="StartTimeChanged" HoursMode24="true" FirstDayOfWeek="1" AutoPostBack="true" runat="server" />
If it is problematic to check logs, you may create custom control which inherits OTB DateTimeControl, override appropriate methods in it and then check the error in debugger:
public class MyDateTimeControl : DateTimeControl
Blog - http://sadomovalex.blogspot.com
Dynamic CAML queries via C# - http://camlex.codeplex.com

SharePoint 2010 Query string parameter pass between visual webparts

Hi
I should pass a query string value from one visual webpart to another visual webpart in SharePoint 2010 .
Could you please help me like how we can pass
Thanks
Siddartha

In the webpart you can add the code like "Response.Redirect("Page2.aspx?CustomerID=326");"
Once you develop the webparts, add them to the respective pages based on your required functionality.
Please check the similar thread
http://social.msdn.microsoft.com/Forums/sharepoint/en-US/3099100f-72b2-4850-ba50-1e02416e9d9c/passing-query-string-between-two-webparts-usercontrols?forum=sharepointdevelopmentlegacy
My Blog- http://www.sharepoint-journey.com|
If a post answers your question, please click Mark As Answer on that post and Vote as Helpful

SharePoint 2013 Query string parameter pass between visual webparts

Hi,
I have created one web part called Latest News in SharePoint 2013 which is
visual web part(Sandbox Solution).
In that, there is button called "Read More". Now when I click on that button I want to show only that item in the new page which is clicked using query string. but the data which will be shown after Read More button will be coming
from a different Visual Web Part.
How should I pass a query string value from one visual webpart to another visual webpart in SharePoint 2013 ?
Could anyone please help me like how we can pass.
Thanks in Advance.

Hi,
To pass information from one web part to another, we can use the consumer and provider web part with the
IWebPartParameters interface.
There are some articles about this topic, you can refer to them.
http://msdn.microsoft.com/en-us/library/office/ms469765(v=office.14).aspx
http://www.c-sharpcorner.com/UploadFile/40e97e/sharepoint-2010-connected-web-parts/
http://underthehood.ironworks.com/2011/03/how-to-build-a-consumer-web-part-in-sharepoint-2010-using-iwebpartparameters-that-works-with-html-fo.html
Thanks & Regards,
Jason
Jason Guo
TechNet Community Support

How to use sharepoint CSS in asp:gridview

Hello
How can I implement sharepoint css (blueone) with asp:gridview for header, footer, rowtemplate etc?
Avi

Hi, Avikumar
          Developer Toolbar is a recommended tool for UI and CSS design, also you can check this for moss css style
          http://www.heathersolomon.com/content/sp07cssreference.htm
          And for displaying data with SharePoint style, you can use SPGridView instead of gridview. The SPGridView control provides a great alternative for displaying tabular data in SharePoint-based solutions.
          Here are some links for this:
          http://msdn.microsoft.com/en-us/library/bb466219.aspx
          http://blogs.msdn.com/powlo/archive/2007/02/25/displaying-custom-data-through-sharepoint-lists-using-spgridview-and-spmenufield.aspx
          Hope this can help.
Best Regards,
-Aaron

How to use existing SharePoint Data Source in Visual WebPart in Visual Studio

I want to create a SharePoint Visual Web Part using Visual Studio, which will query SQL database and will display some data (e.g. Latest News from Database)
I already have a SQL Data Source (rsds file) in SharePoint. Can i use this rsds to connect SQL database for my Visual Web Part ?

I will use web.config as last option but can you please explain how BdcService will connect external SQL database.
What if I use SharePoint property to store connectivity information and all web parts will use it to make connection string?
Following code returns 0 entities
// Get reference to BDC Service
BdcService service =
SPFarm.Local.Services.GetValue<BdcService>();
// Get MetaData Catalog
IMetadataCatalog catalog = service.GetDatabaseBackedMetadataCatalog(SPServiceContext.Current);
// Some heading for the literal control
string dbData =
"<h1>Lob Systems and Entities … </h1> " +
"</br>";
// Get all the external content types from the meta data catalog
foreach (IEntity
ect in catalog.GetEntities("*"))
// Add external content type’s name and lob system name to the literal control
dbData += ect.Name +
"," + ect.GetLobSystem().Name +
"</br>";
ltMsg.Text = dbData;

Client Object Model in Visual Webpart

Hi
I am new to Client Object Model.I've to create a visual web part in SharePoint 2013 via Client Object Model using
SandBoxed solution.
i did following.
1-Created empty sharepoint project
2-added two dlls for Client Object Model in the project
Microsoft.SharePoint.Client
Microsoft.SharePoint.Client.Runtime
3-in the visual webpart .ascx file i just created asp label as below
<asp:Label ID="label1" runat="server"></asp:Label>
4- in the visual webpart .cs file i write a client object model code to show title items in the label from the "Test" list as below.
5-when i deploy the code it deploys successfully,but when i try to insert this web-part on to the page it shows errors
as below.
Please tell me what am i doing wrong.Urgent help required.

Yes,deployed as sandbox solution.Actually i want to create a visual webpart in Sharepoint 2013 using Client Object Model. How can i do this,i followed below steps.
1-Created empty sharepoint project
2-added two dlls for Client Object Model in the project
Microsoft.SharePoint.Client
Microsoft.SharePoint.Client.Runtime
3-in the visual webpart .ascx file i just created asp label as below
<asp:Label ID="label1" runat="server"></asp:Label>
4- in the visual webpart .cs file i write a client object model code to show title items in the label from the "Test" list as below.
using Microsoft.SharePoint.Client;
using System;
using System.ComponentModel;
using System.Web.UI.WebControls.WebParts;
namespace SharePointProject2.VisualWebPart1
    [ToolboxItemAttribute(false)]
    public partial class VisualWebPart1 : WebPart
        // Uncomment the following SecurityPermission attribute only when doing Performance Profiling on a farm solution
        // using the Instrumentation method, and then remove the SecurityPermission attribute when the code is ready
        // for production. Because the SecurityPermission attribute bypasses the security check for callers of
        // your constructor, it's not recommended for production purposes.
        // [System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Assert, UnmanagedCode = true)]
        public VisualWebPart1()
        protected override void OnInit(EventArgs e)
            base.OnInit(e);
            InitializeControl();
        protected void Page_Load(object sender, EventArgs e)
            ClientContext context = new ClientContext("http://spsiteURL");
            List testList = context.Web.Lists.GetByTitle("Test");
            CamlQuery query = CamlQuery.CreateAllItemsQuery(100);
            ListItemCollection items = testList.GetItems(query);
            context.Load(items);
            context.ExecuteQuery();
            foreach (ListItem listItem in items)
                label1.Text = label1.Text + ", " + listItem["Title"];
If this is not the correct way then how can i use client object model to get sharepoint list items.Please mention.

Visual studio 2012 the name "initializeControl" does not exist in the namespace in visual WebPart

Hi All,
I'm trying to create a visual webpart in SharePoint 2013 using Visual Studio 2012 and I am seeing that the file ascx.g.cs
is missing and i have this error in file ascx.cs : the name "initializeControl" does not exist in the namespace.
And like i said i use VS2012 Ultimate
Can anyone Help me please!!!
thanks.

In most scenarios this is caused by some error in code preventing Visual Studio from generating the designer file. You could try to undo the latest changes and see whether the item is being generated or not. Additionally you could try checking if the custom
tool is still associated with the Visual Web Part SPI in the Properties Window.
w: http://blog.mastykarz.nl | t:
@waldekm | c: http://mavention.codeplex.com | c:
http://mavention.nl

ASP Gridviews in Sharepoint Visual WebPart

Similar Messages

Maybe you are looking for