I'm trying to convert an empty string to null when editing a table in my gridveiw. I've tried several iterations and methods with no success. I'm suspecting that the issues is in my ObjectDataSource but don't know the correct syntax I need.
<asp:GridView
ID="grdMyDistributors"
DataSourceID = "srcGetMyDistributors"
[code]....
I am using Dev Express to develop a form in which i have a GridControl with a View inside a View.It looks like this:
I am then trying to use the event ValidatingEditor to validate the user input.I tried to do that by doing:
Private Sub grvObsAM_Artigos_ValidatingEditor(ByVal sender As Object, ByVal e As DevExpress.XtraEditors.Controls.BaseContainerValidateEditorEventArgs) Handles grvObsAM_Artigos.ValidatingEditor
Dim row As Integer = Me.grvObsAM_Artigos.FocusedRowHandle
This, however always returns me something like -99999.. I poked around and tried this other solution using the sender from the event:
Private Sub grvObsAM_Artigos_ValidatingEditor(ByVal sender As Object, ByVal e As DevExpress.XtraEditors.Controls.BaseContainerValidateEditorEventArgs) Handles grvObsAM_Artigos.ValidatingEditor
Dim grv As DevExpress.XtraGrid.Views.Grid.GridView = CType(sender, DevExpress.XtraGrid.Views.Grid.GridView)
Dim row As Integer = grv.FocusedRowHandle
And using this second solution i managed to get the focused row handle. Even though this worked this time (because the event was triggered by the view itself and i had access to the sender) this doesn't solve my problem as there are other events where the sender is not the view and the problem persists.Usign Me.grvObsAM_Artigos."insert anything here" doesn't seem to work properly.
I have a datatable with verified 10 rows named dtable. I attempt to bind it to my gridview and nothing shows up on my asp.net page. Why do these relatively simple few lines not populate my gridview?
Dim con As SqlConnection = Nothing
Dim dTable As DataTable
Dim dataAdapter As SqlDataAdapter
Dim sqlcmd As String
[code]....
I'm really struggling to make the leap in understanding to get paging working for my gridview. I am creating a web part in vb.net so have programmatically created all the controls. For development I have an aspx page to view my work. I have created a table with code and then inserted my code created gridview. When i enable paging i get the following error.
at System.Web.UI.WebControls.GridView.get_StateFormatter() at
System.Web.UI.WebControls.GridView.BuildCallbackArgument(Int32 pageIndex) at
System.Web.UI.WebControls.GridView.CreateNumericPager(TableRow row, PagedDataSource pagedDataSource, Boolean addFirstLastPageButtons) at
System.Web.UI.WebControls.GridView.InitializePager(GridViewRow row, Int32 columnSpan,
[Code] .....
I'm trying to create a simple example of an editable gridview, and for some reason can't seem to get the basics working. Why is this example not displaying the label Bar and a textbox when I click on "edit"?
aspx: <%@ Page Language="vb" AutoEventWireup="false" CodeBehind="gv.aspx.vb" Inherits="WebRoot.gv" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-
[CODE]...
code behind:
Public Class MyFoo
Public ReadOnly Property FooVal() As String
Get
Return _val
[CODE]...
while configuration sqldatasouce1 IN ASP.NET i used sql statement where sql statement is working well in Test Query THE statement is as follows
SELECT
Name, Gender, Cast, Qualification, Occupation, Country, Age
FROM
Registration
[code]....
I am having problems trying to get a rowcommand event to fire in a gridview. The code is below.
<asp:GridView ID="GridViewProducts" runat="server" AutoGenerateColumns="False"
BackColor="White" BorderColor="#999999" BorderStyle="Solid" BorderWidth="1px"
CellPadding="5" CellSpacing="1" DataKeyNames="Pkey"
DataSourceID="SqlDataSourceProducts" ForeColor="Black" GridLines="Vertical">
<FooterStyle BackColor="#CCCCCC" />
<PagerSettings PageButtonCount="20" />
[Code] .....
<asp:BoundField DataField="mail" SortExpression="mail" HeaderText="Com Rec">
<HeaderStyle Font-Size="X-Small" ForeColor="White" HorizontalAlign="Left" />
<ItemStyle Font-Size="X-Small" HorizontalAlign="Left" />
</asp:BoundField>
<asp:TemplateField HeaderText="Status Change">
<ItemTemplate>
[Code]...
I've spent quite a while searching this problem, there are some other similar threads online but none have helped me fix it.I have a GridView with an ImageButton within it, the imagebutton has an OnClick function but that event is never reached when it is clicked, below is my gridview:
[Code]...
I have an asp.net gridview that is originally bound to a sqldatasource control, but when the user presses an external button, it instead gets the contents of a datatable rather than a SQLdatasource control. I therefore had to write code in the PageIndexChanging event of the gridview to allow for paging. My code is as follows:
Protected Sub gvEvents_PageIndexChanging(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewPageEventArgs) Handles gvEvents.PageIndexChanging
gvEvents.PageIndex = e.NewPageIndex
gvEvents.DataBind()
This worked beautifully until I added an AJAX update panel so the whole page wouldn't postback every time it paged, and paging stopped working. I debugged it and discovered that it is actually calling the PageIndexChanging event, but nothing is happening. I searched the web and found a few people with the same problem, but their solutions did not work for me. There was one on this site whose problem was solved by the following:
In PageIndexchanging event, where you bind data to grid, make sure, data is again fetched from the DB
I don't know what that means; my data was being bound as demonstrated above. I have "enable paging" set to true and EnableSortingAndPagingCallbacks set to false.
I am including my markup for the updatepanel below.
<asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="ibtnSearch" />
</Triggers>
[CODE]...
How to show pop up menu from database in gridview on each gridview row items ?Example of this is : http:[url].....Move your cursor to Departure time and arrival time...a want this type of popup in gridview items....which fetch entries from database..
View 2 RepliesIn my application,i have a gridview in which columns are created at runtime.Actually these columns are created when i am entering data in a database table.[code]where Column1,Column2,column3 may vary during runtime.i need to enter values to these columns during runtime.But i cant bind these columns because these are created during runtime.The first column "Description" will not change.It will remain constant.For each description, there will be values for each column.At last these data will be saved to the database.How to add columns in the gridview during runtime?
View 2 RepliesI am able to export a gridview to excel, my problem is that I cannot figure out how to remove the formatting from coming over from the girdview. Here is the code I am using to export the gridview: Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]....
I have a modal popup that contains a gridview. On the click of a button inside of a grid i reload the gridview with the data that depends on the id of the row clicked in the gridview. I would have like to reload the gridview onclientclick but I couldn't find a way to do that. Is it possible to reload a gridview client-side without the user even knowing the page partially loaded?
View 2 RepliesI found on msdn samples and modified (add Thread.GetDomaind.UnhandledException)
<SecurityPermission(SecurityAction.Demand, Flags:=SecurityPermissionFlag.ControlAppDomain)> _
Public Sub Main()
' Add the event handler for handling UI thread exceptions to the event.[code].....
It appears that my favorite thing in the world is tackling projects that are beyond my current knowledge and abilities. I have a little project that I am working on which is a simple image viewer stocked with (upon completion) your standard Load..., Next/Previous, Zoom In/Out, Actual Size, and Full Screen capabilities. However, I am running into a few snags:
(1) I've been able to get my "Load..." button to display a file dialog box, but I cannot seem to get a working filter (with which only image file types are allowed to be selected) in working order.
(2) I have a PictureBox object (entitled PictureBox1) that displays the image selected via the file dialog box, but it loads images in their full size (1:1/100% zoomed) state without scrollbars, etc. to allow me to navigate the loaded image. I would like to have it load the image, initially, to fit within the dimensions of PictureBox1 and from there be able to zoom in/out via my "Zoom In/Out" and "Actual Size" buttons and be able to scroll if the zoom level is beyond the dimensions of PictureBox1.
(3) It dawned on me that I haven't the faintest idea how to get my "Next/Previous" buttons to allow the user (me) to navigate, in succession, the images contained in the folder in which the currently loaded image is stored. [code]
If it is deemed that this thread is inappropriately requesting help, I ask that it be locked/deleted quickly as I recognize that this is a large community with many discussions going without need of unwelcome posts.
I am using VB.net.
I need to fill a gridview(1) with data that cames from another gridview(2), ie:
(2) - All articles in the database.
(1) - Selected articles from (2)
What is the best way to do that?
EDIT: forgot to mention, so better state this before anything else... I'm running VS 2005 with Framework 2.0.I have a GridView (gdvN) with 7 columns (N1, N2, N3, N4, Edit command e um Delete command). In the same aspx, 4 textbox (that would be a new line with new N1, N2, N3 and N4 values.).
After filling the textboxes and pressing a button, it was supposed to insert a Row in the gdvN.
[Code]...
Unfortunately that didn't solved, as it edits an existing row instead of adding one. As I can see, that may be two paths for this to be solved:Is there a way to make _newitem be created with the same structure as the gdvN rows. I didn't found how.Or there's another logic (or a mistake in the coding) I'm not looking?
Add gridview in sql? This is my [code]...
View 3 Replieshave Create the following Code For GridVie____
dim dr =new GridViewRow(0, 0, DataControlRowType.DataRow, DataControlRowState.Normal)
dim dc1 as new TableCell
dc1.text="Hello"
[code].....
I'm using a gridview to display and access a sql database and using databinding. I'm also using autogenerate columns as one gridview has multiple sources and toggles between them. What would be the best way to allow the user to insert a new row?
View 3 RepliesI'm using loop to read data from sql and then make some calculations then save it again to another table but when application loop for 3 or 4 times it's freeze but the job is done but if loop = 10 or more then it is freeze and hangup for long time .i need to learn how to make my application working better and never freeze and make application working with any count for loop without freeze .
View 7 RepliesI have a Category table that have the following columns CatgeoryID, CategoryName, and CategoryPicture and i have Product table linked by Foreign Key to Category table.[ocd]e....
View 1 Repliesdo anyone know how to add a new column in gridview using vb.net syntax?the column that i want to add is not bind to any database unlike the other column in the same gridview.
i try to use GridView1.Columns.Add("Percentage")but it turn out to be error.the error said " Value of type 'String' cannot be converted to 'System.Web.UI.WebControls.DataControlField'"
My problem is that I have a gridview with five rows and an unknow number of columns. What I want to do is in row 1 I want each column to be a textbox and in the next row create a button/link to create a report for each column. My problem is only the last column is being changed to a textbox. Here is my code.
[Code]...
how can i add text box value in gridview
View 1 RepliesI have a Gridview that has a timestamp as one of the rows. When I read the data from the database the data is in the format( mm/dd/yyyy hh:mm:ss ). I've figured out how to format the way I want it which is just the ( mm/dd/yyyy ) and droping of the (hh:mm:ss) with the following code:
[Code]...
I want to add a row to that will contain dropdowns,search textboxes, and maybe other controls to allow filtering to the gridview. I've looked at This Question but it did not help me. How can I add a row so i can add these controls to my gridview?
[code]...
My Gridview has following Fields
ID Product Price ($)
1 Pencil 1
2 Pen 1
3 Rubber 2
I want to calculate the total price of price fields in Gridview Footer ...ie..
Total Price = 4
How to do it using VB.NET ?
how can i get the dataset from a gridview i have populated?
i tried this:
Dim importedDS As DataSet = gwResults.DataSource
but it's coming out blank all the time. is there another way?