.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Post New Web Links

determine the best way to refresh a gridview when textchanged event occurs

Posted By:      Posted Date: August 23, 2010    Points: 0   Category :ASP.Net

Good afternoon.

I have the following gridview inside an updatepanel that makes the bind from a datatable:

<asp:UpdatePanel ID="UpdatePanel1" runat="server">
                <asp:Button ID="ButtonAdd" runat="server" OnClick="ButtonAdd_Click" Text="Novo Artigo" />
                <asp:GridView ID="Dados" runat="server" AutoGenerateColumns="False" 
                    CssClass="Grid" Width="100%" CellPadding="4" ForeColor="#333333" 
                    <AlternatingRowStyle BackColor="White" ForeColor="#284775" />
                        <asp:Button ID="AbrirModal" runat="server" Text="->" /> 
                                <asp:PopupControlExtender ID="PopupControlExtender1" runat="server"

View Complete Post

More Related Resource Links

Composite control: How to bubble a textbox's TextChanged event?


I've created a composite control that contains several controls, including a textbox. I'm trying to expose the TextChanged event of the textbox as an event on the composite control. I understand that events can be bubbled up the control hierarchy and handled at a higher level, which I've attempted to do, but I can't get the bubbled event to fire. When I drop the control on an aspx I can see the TextChanged event, I can subscribe to the event, but nothing ever happens. Any suggestions? Here is what I think is the relevant code:

// My event
private static readonly object EventTextChanged = new object();

//Handle the bubbled event
EventHandler textChangedHandler = (EventHandler)Events[EventTextChanged];

protected override bool OnBubbleEvent(object source, EventArgs e) 
    bool handled = false;

Custom Grid View Header - Grid view Row Created event vs Gridview row databound events ?


Hi Gurus ,

It happened to add an extra Gridveiw Header in row_databound event , It did worked fine on !Postback but disappered on Page.Postback . Quick google search guided me to move the event to Row_Created event and every thing is okay .

Can any expert post some pointers , differnces between grid row_created vs row_databount with some sample table data created dynamically  behaviour of both the events in !Postback and page.Postback .

Thanks a tonne in Advance and  any inputs will be valued and appreciated .

gridview tablecell text emptystring in RowDataBound event when editing


HI and thanks in advance.  asp.net using vb, using a codebehind page.

I have a relatively simple gridview bound to an product table that displays great.  The problem comes when I choose to edit a row.  When I do so, the gridviews' RowDataBound event fires and the values of the text properties of the tablecells in the row evaluate to "" emptystring. 

I do notice that if I break within the GridView1_RowDataBound event during a refresh of the page, the values are there.  But again, when I hit the "Edit" button in the first column (the CommandField column) .  Text properties of the cells resolve to ""

 Here is the code for the event, followed by the gridview in the form (inside an updatepanel)

Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
        If e.Row.RowType = DataControlRowType.DataRow Then  ' not a header, footer row.. etc.
            Dim cellProductNumber As TableCell = e.Row.Cells(3) ' ProductNumber column

'>>>>> after clicking "update", even though a value displays in the gridview,
' the cellProductNumber.Te

How to get object from the gridview selectindex changing Event.


I have a grid view which is populating with a data source through databind. And the Datasource is list of objects.Now when the user selected a row I want to get the object of that row.

I'm trying to get the row like this.


r = gvTruckCarrier.Rows[e.NewSelectedIndex];


drv = r.DataItem as DataRowView




but the drv value is

Can't change Gridview row colors or styles in the DataBound event


I was highlighting certain rows in my gridview using code like this in the DataBound event:

        if (e.Row.RowType == DataControlRowType.DataRow)
            int vendorCheck = 0;
            //TODO make this shorter
            if (DataBinder.Eval(e.Row.DataItem, "vendorId") != System.DBNull.Value)

GridView RowUpdating event

Hi,I have a gridview. In the rowupdating event, the txtbox returns null. I have enabled viewstate for the gridview. But still it does not work. I have made this in Kentico. Please help.<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True"        AutoGenerateColumns="False" DataKeyNames="id" DataSourceID="SqlDataSource1" EnableModelValidation="True"        OnRowUpdating="GridView1_RowUpdating" >        <Columns>            <asp:CommandField ShowDeleteButton="True" CausesValidation="false" ShowEditButton="True"                ControlStyle-Width="100px" />            <asp:TemplateField HeaderStyle-HorizontalAlign="Left" HeaderText="Name" SortExpression="name">                <ItemTemplate>                    <as

Textchange Event in Gridview

frends, <asp:GridView ID="grideviewsasmple" runat ="server" AutoGenerateColumns ="false" AutoGenerateEditButton ="true" OnPageIndexChanging ="PageChange" OnRowEditing ="Edit" CellSpacing ="2" OnRowUpdating ="Update" OnRowCancelingEdit ="Cancel" DataKeyNames ="Sno" > <Columns > <asp:TemplateField > <HeaderTemplate > <asp:Button ID="buttonDelete" runat ="server" Text ="Delete" onclick="buttonDelete_Click" /> </HeaderTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Roles"> <HeaderTemplate> <asp:CheckBox ID="chkAll" OnClick="javascript:SelectAllCheckboxesSpecific(this);" runat="server" /> </HeaderTemplate> <ItemTemplate>

How to determine when the cube refresh has completed?

I'm trying run code after a cube refresh is completed, but I can't seem to figure out how to write code to determine when the cube refresh has been completed. If it were a simple calculation, I could use the code below to determine the "calculation state", but there doesn't seem to be "refresh state" that I'm aware of. Any help will be GREATLY appreciated!! Application.CalculationState = xlDone

textChanged event doesnot work

hi friend TextChanged event for a textbox doesnot work when i change the text inside the textboxi added this code to textchanged event method in my website code-behindprotected void passwordTxt_TextChanged(object sender, EventArgs e)        {            char[] pass = passwordTxt.Text.ToCharArray();            for(int i=0;i<pass.Length;i++)            {                if (Char.IsDigit(pass[i]))                    digit++;                else if (Char.IsLetter(pass[i]))                    letter++;            }            if (digit >= 1 && letter >= 1)                errorPassLbl.Text = "Strong";        

how to use nested gridview's rowupdating event

Hi all,            I have a GridView within a GridView. I want o access child gridview's rowupdating event. i want to update row.            this is my GridView's code as follows<asp:GridView ID="grdv1" runat="server" AutoGenerateColumns="false" EmptyDataText="No records found" OnRowDataBound="grdv1_RowDataBound" CellPadding="0" Width="500px" CellSpacing="0" BorderWidth="0"> <Columns> <asp:TemplateField> <ItemTemplate> <table width="100%"> <tr> <td align="center"> <asp:Label ID="lblName" runat="server" Text='<%# Eval("Name") %>' CssClass="nbdcontent"></asp:Label> </td> </tr> <tr> <td style="height: 150px"> <asp:GridView ID="grdv2" runat="server" AutoGenerateColumns="False&

Gridview RowCommand Event returning null values

HiI'm trying to retreive values entered by users in the textboxes in the footer of the gridview and insert these values into another sql table.My code is as follows :-protected void GridView2_RowCommand(object sender, GridViewCommandEventArgs e)    {       if(e.CommandName.Equals("addnew"))       {                       TextBox t1 = (TextBox)GridView2.FooterRow.FindControl("tfrm");            string frm = t1.Text;            TextBox t2 = (TextBox)GridView2.FooterRow.FindControl("tsub");            string sub = t2.Text;            string cmd = "insert into suggestions values('" + frm + "','" + sub + "','c','c')";            con.Open();            SqlCommand com = new SqlCommand(cmd,con);            int a = com.ExecuteNonQuery();&n

Gridview edit mode - What event does enter key call?

I have sort of a very specific problem.  I have a gridview with a few different template columns and a commandfield with the standard "edit" link.  There is no sqldatasource associated with it at all.  In the code, I pull some data from an sql database into a datatable and set the gridview's datasource to be the datatable.This all works fine.  When I hit the "edit" button, the standard textbox shows up where it needs to so that I can edit the data.  The problem is the updating portion.  I have programatically removed the "update" button and left the "cancel" button for design reasons. I want the user to be able to hit "enter" in order to update the data in the data table.  Then, when they're ready, they can click a submit button which will extract the data from the datatable and update the database.I'm having trouble with this 'enter key' business.  When you edit the data and hit "enter" while in edit mode, the page posts back, and the previous values are placed in the gridview.  What event was just  called?  I need a way to take what the user put in and place it in my datatable.  What are my options?Thank you. 

GridView Textbox TextChanged

Hi all,Where in my application i am binding products table (Name(Dropdownlist),Description,price) to the gridview.  Where in the page load dropdownlist will bind with the product name.  When i select the product form the Dropdown list it will fill the remaining columns expect quanity column. Then i will enter quantity then it should calculate with price and display totol in the total column.   How can i do this.  I am able to bind the products to the dropdown and when select the item form that binding to the remaining columns but i am not able to calculate it in the text changed event. How can i procced. Please guide me. Regards, Jeevan.

Checkbox checked changed event inside gridview

Hi All, In my gridview there are 8 checkboxex in each row : 'Sunday' to 'Saturday' and one for 'All'. If 'All' is checked in a particular row, all other checkboxes in that row should be checked instantly, and viserversa. Can i do this in checkbox checked_changed event, if so how do i access the current row of the gridview in the checked changed event? Thanks in advance

find the label control of gridview in save button event in C#

hi, every one..i want save the gridview in buttonsave event..here i wrote the code like thisfor (int i=0;i<gridview1.row.count;i++){label lbl=(label)gridview1.rows[i].findcontrol("lbl");Textbox txtname=(Textbox)gridview1.rows[i].findcontrol("txtname");}here i got the textbox value but am not getting label value how to get that label value..thanks in advance

ButtonText value (GridView) in PageLoad Event

I have a grid view,with last column a template field with a button. This GridView is Bound to a table in my Database. One of the columns in my Table has values "A" and "D". Based on this values I want the Button TextValue. For example, If the value is "A" the buttonText value should be "Deactivate" and if the value is "D" the buttonText value should be "Activate". All this I want to achieve in my Page Load Event? Any help would be appreciated?Dear Friends,I have a grid view,with the last column a template field with a button.This GridView is Bound to a table in my Database. One of the columns in my Table has values "A" and "D". Based on this values I want the Button TextValue.For example, If the value is "A" the buttonText value should be "Deactivate" and if the value is "D" the buttonText value should be "Activate".All this I want to achieve in my Page Load Event?Any help would be appreciated?

Keeping Custom properties in GridView Added on OnRowDataBound Event While Sorting

All of my columns are bound in the Gridview. On OnRowDataBound event, I am adding some custom styles like underlines and colors to the text of the columns. Sorting of data is working fine but I am losing my custom styles when I sort. I am using the generic sorting code for the GridView. How I can keep my custom styles on sorting that I added during OnRowDataBound event.   Thanks for your help.
ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend