I have a grid view will two different button columns. I want to perform a different action depending on what button the user presses. How in the SelectedIndexChanged event do I determine what colmun was pressed. This is the code I use to generate the columns.
how can i different generate event from two button columns in gridview? I add two button field one is Yes and one No and I want to call dirrerent function of server side from buttons.
I have a link button for one of the columns of the gridview, What I need to do to save the value that the link button has in the gridview on a text box and how can I open a new page on that link button
I have a gridview set up to bring in all of the items listed in the radiobuttonlist. When the page loads the first time it comes in as showing Over 250 only:
Private Sub GridView1_DataBound(ByVal sender As Object, ByVal e As System.EventArgs) Handles GridView1.DataBound GridView1.Columns(2).Visible = False GridView1.Columns(3).Visible = False GridView1.Columns(4).Visible = False End Sub
This is the code behind:
Protected Sub PopulateGrid(ByVal sender As Object, ByVal e As EventArgs) 'Select Case Pending.SelectedItem.Value ' Case "300" Dim conn As New Data.SqlClient.SqlConnection(ConfigurationManager.ConnectionStrings("PendingClaimsConnectionString").ConnectionString) Dim cmd As New Data.SqlClient.SqlCommand
[code]...
I'm getting an error under the If pending.selected value = "300" and .Parameters.AddWithValue etc...saying operator AND is not defined for types Boolean
Private Sub GridView1_DataBound(ByVal sender As Object, ByVal e As System.EventArgs) Handles GridView1.DataBound GridView1.Columns(2).Visible = False GridView1.Columns(3).Visible = False GridView1.Columns(4).Visible = False End Sub0
I want to hide few columns of a gridview before they gets displayed. I want to do it by create a common function which can be used by multiple controls. I am using an extension and would like to know how it can be done.
Here is my code
[Code]...
I want to create an extension to hide or show columns provided in the list as an array. 1st function is used on page. While below two functions are needs to be used for multiple applications
I have a simple gridview control on .aspx page. It has one combo box in the gridview control and rest of the columns in the gridview control are all bound controls.
When the user picks something from combo box, I should multiply the number (picked from the combo box) with other number in the same row (meaning in a different column on the same row). I want to do all this in server controls not thru JQuery or Javascript.
Basically my problem is I am able to read data from unbound combo box control in the grid. But I should be able to read the contents of another bound column in the same row and perform multiplication between those two fields.
I'm working on an ASP.NET 3.5 project that requires me to create several custom navigation server-side controls that can be customized at design time by non-ASP.NET website developers through a simple text editor. All but one were relatively easy to create, but the last one is stumping me. I've looked online and can't find any examples anyplace that come close to what I'm trying to do.The last control needs to give the site developers the ability to manually define the number of nodes that are displayed within the control when it's rendered on a page, and I want to reproduce the design time/runtime functionality of the GridView's "Columns" property. In the Columns collection the site developer at design time can manually specify the look/feel of each column within the ASPX designer. I want to give my site developers the same design-time flexibility so they can add/remove nodes at their whim and not bug me to do it for them. an anyone point me to any examples of how to create a collection custom child controls that are associated with a custom server side control?
I am developing an web application. One of this form has a textbox. When the user enter chars i need to fetch the records from db and display as 4 columns in AUTOCOMPLETEEXTENDER CONTROL TOOL KIT and it's column name also. When the user click any one of the row, i need to get the 2nd clicked column name and display it in textbox.
how to display 4 columns and it column name in autocompleteextender control?
I have a GridView that has several dynamic columns (I do not know how many at design time and it could be 0-12 columns, hence need for dynamic columns). I have the columns in the grid and data bound to them - works great. There are other standard, design-time TemplateField columns with TextBox controls in them. These are bound with values that the user can edit. The grid is posted back via a Submit button. My question is "Why does gv.Columns.Insert() cause all my TextBox data to be null on Postback, but gv.Columns.Add() works like a champ?"
protected void BuildColumns() { // The first column to begin to insert the columns in the GridView int columnIndex = 5; BoundField aoColumn = new BoundField(); aoColumn.HeaderText = "New Column 1"; gvMyGrid.Columns.Insert(columnIndex, aoColumn); // kills txtQuantity.Text on postback gvMyGrid.Columns.Add(aoColumn); // works fine columnIndex++; foreach (MyEntity my in _myEntityCollection) { BoundField myColumn = new BoundField(); myColumn.HeaderText = String.Format("{0:d}", my.StartDate); gvMyGrid.Columns.Insert(columnIndex, myColumn); columnIndex++; } }
I then go on to assign values to these BoundFields in the _RowDataBound method and all of this works great. However, when I post back and try to reference some TextBox and they are all null. And yes, I have the BuildColumns() call wrapped in if (!IsPostBack) on Page_Load. Of course I would like to use .Insert() so that the columns can go in the proper location and not at the end of the Columns array.
in asp.net page user able to select gridview Columns, and it will hide remaining columns and that selection done by check box with column list bellow is Image link , what exactly I am looking for [URL] it look bellow after selection of column done [URL]
I have a datasource, which includes many columns, idealy, I need use a gridview to show:
1) first 3 columns: template fields, these fields depends on values in some columns of datasource. I use template fields, hard coded. works fine.
2) the other columns. This is I do not know how to do it. In the data source, there are about 10-20 columns data, each time, the # of columns of the data varies. idealy, I need show each of them as a seperated column in gridview. The entire data source may have 30 columns, but some of them are used in 1), and I only want show these 10-20 columns in gridview. Some columns in data source, I may not use them at all. is there a way to do this? or have to seperate them as a detail view style UI?
I apologize for the odd title. I've been trying to figure out how to do this and can't quite put it into words. Basically, I need to try to display a GridView with a whole bunch of columns (37 in one case) in two "rows" of columns. More or less.
So instead of this:
Column1 Column2 Column3 Column4 Column5 Column6 Data Data Data Data Data Data Data Data Data Data Data Data Data Data Data Data Data Data
I'd like something like this:
Column1 Column2 Column3 Data Data Data Data Data Data Data Data Data
Column4 Column5 Column6 Data Data Data Data Data Data Data Data Data
As in the example there can be multiple rows returned which all need to be displayed. I'm trying to stop a very large horizontal scroll bar being required. I've been searching as much as I can but haven't found anything that fits what I'm looking for.
how to display the gridview control with an interface that is ready for inputting data into columns. Bsically I want the grid to display initially in update mode without the user having to click the update link or button.
I'm binding a gridview from a webservice with 30 columns and 10 rows, I need to print the same in a PORTRAIT, for that i decided to display columns as rows and
I currently am using an ASP.Net gridview control and when a sortexpression is defined on the column, the column header is rendered as a linkbutton. I want to know if it is possible to convert that LinkButton to a Button control and preserve all the functionality.I cannot use TemplateColumns because I using DataControlField implementation to create columns and add them to the grid.
I have a GridView containing records from a table which can be deleted or updated. If you want to edit a row, it should display the update and cancel buttons so that you can keep or cancel the current edit (I hide update and cancel as default). I am using the following asp for the button column of the GridView:
<asp:TemplateField visible ="true" > <HeaderTemplate> <div id = "header">Maintain</div>
I added a asp button control in template column in a Grid View. On running the project when i click the button post back occurs(without any error).. but the corresponding event handler method is not called.(It works when i specify the EnableEventValidation="false" in the page directive.But i want it to make it work without doing that). I herewith place the code.. kindly let me know the reason
public partial class _Default : System.Web.UI.Page
I have a gridview that displays entries from a data table. I am giving users the ability to select a subset of the data in the table by having a textbox and search button in the grid view header. The search button fires the gridview row command, and changes the underlying sqlDataSource's select command, and adds the text value from the text box as a parameter.
Also, I have a "Show All" button in the header, that clears out the select parameters, so all entries in the table are shown. Again, this works perfectly.
What is NOT working is controlling the visibility of the "Show All" button control. Below is the html markup for the data grid header template:
<HeaderTemplate> <asp:Button ID="btnShowAll" runat="server" CausesValidation="False" CommandName="ShowAll" Text="Show All" /> <asp:Button ID="btnSearch" runat="server" CausesValidation="True" CommandName="Search" Text="Search" ValidationGroup="vldSearch" /><br /> <asp:TextBox ID="txtSearchName" runat="server"></asp:TextBox> <asp:RequiredFieldValidator ID="vldSearchName" runat="server" ErrorMessage="You have to provide an attorney name to search for." Text="*" ControlToValidate="txtSearchName" ValidationGroup="vldSearch" ForeColor="White"></asp:RequiredFieldValidator> </HeaderTemplate>
In the Row Command event handler, here is how I am setting the visibility of the button:
If Not Me.dgAttorneys.HeaderRow Is Nothing Then Dim btnShowAll As Button = Me.dgAttorneys.HeaderRow.FindControl("btnShowAll") btnShowAll.Visible = Me.sqlAttorneys.SelectParameters.Count > 0 Trace.Write("Show all status is " & btnShowAll.Visible.ToString) End If
The trace statement is showing the correct visible status - if the "show all" button is clicked, I do a SelectParameters.Clear() on the sqlAttorneys sqlDataSource.
Is my problem due to a misunderstanding of how the "FindControl" method works - I had assumed my new btnShowAll that I define is actually a reference to the "physical" control on the aspx page, so any changes I make to my local object is reflected in the control on the page.
If this is not the case, what is the best way to get a reference to the button control in the header row of the grid view?
I want when users click on Linkbutton it insert data from gridview into Variz Table in database but when I click on link button below error happen Server Error in '/behtop website' Application. Object reference not set to an instance of an object. An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception System .NullReferenceException: Object reference not set to an instance of an object.Source Error:
Line 377: SqlCommand cmd = new SqlCommand("insertvariz", _cn); Line 378: cmd.CommandType = CommandType.StoredProcedure; Line 379: string Mobile = ((Label)GridView1.FindControl("lblMob")).Text; Line 380: Line 381: cmd.Parameters.Add("@ID", SqlDbType.VarChar).Value = lnkRemove2.CommandArgument;
