Forms Data Controls :: How To Control Dropdownlist In Datagrid
Feb 3, 2010
the problem is that , i have two dropdown in a datagrid one dropdown contain diffrent type of tax name and other contain the tax rate releated to that tax and i also have one buttton i datagrid which work to insert another row for next tax type.now problem is that as sooon as the new row inserted the both dropdown takes the values but as soon as i changed the selected index of dropdown taxname then then all the taxrate dropdown values has been changed with respect to the new one taxname values.
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May 25, 2010
I am trying to display a gridview with element names bound to a datatable (transformed from OracleReader) and also display two contact dropdowns inside the gridview. For each record in the datagrid i want to display these dropdown lists that will also be bound to two different datasources. How would I accomplish this?
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Aug 20, 2010
in dropdownlist show the all PatientName and save the PatientID . how to show the PatientName in DataGrid.
PatientID, PatientName are Foreign Keys. In DataBase on Save the the PatientID my requiredment is PatientName show in DataGrid based on PatientID.
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Aug 12, 2010
I'm trying to display a confirm message box before firing selectedIndexChanged when user change selection in the dropDownList. I was wondering if anyone would an example of how to do this.
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Aug 10, 2010
So I have a dropdownlist and I'm trying to populate it with values in the database. For some reason, half of the rows has no value. It's happenning in a sequence as well, like the first row has no value, then the second row has value, then the third hasno value....
Does any one know why it does this?
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Aug 11, 2010
I've tried many different ways to try to get the selectedIndexChange to work for my dropdownlist. It doesn't seem to work, when I debug, I can see that the page is doing a PostBack but the method that suppose to be taking care of the select index change doesn't seems to be fired. I notice that there is no "handles" in many post so I was just wondering why it doesn't have it?On postBack I didn't rebuild the list so the selectedIndexChange value shouldn't reset to 0.Sub ddlAccess_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs) ''handles ......?"
...
end Sub
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Apr 13, 2010
I have a DataGrid that has a dropdown list in an ItemTemplate. Basically, users select a value from the dropdown for each row of the datagrid. When the page is posted back, the selected index of the dropdown list is always reset to 0, and the items are re-bound.
Does anyone know why this might happend? The dropdown items are hardcoded, so there is no external data binding that happens on post back.
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Oct 13, 2010
I am placing a dropdown list in the footer of a DataGrid like this:
[Code]....
In my code behind file, in the myDDL_OnLoad event handler, I call to the database, populate a SqlDataReader, and set the DDL's datasource to that datareader. I define what data columns should be used for the DataValueField and DataTextField of the dropdownlist. Then I call the DropDownList's DataBind() method. Everything works without error. But, when the dropdownlist is displayed, it has blank lines in it.
By that, I mean if 8 records are loaded into the dropdownlist, it will expand to a size appropriate for 8 rows but, it will be empty. there is no text in it.
Has anyone seen this type of behavior before? This dropdownlist is in the footer of a dynamically loaded ajax update panel so, it is difficult to see the source code to see what values are in the html element rendered to represent the dropdown.
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Feb 25, 2011
Recently, I am working on the datagrid, where I want to make datagrid as an input control where I would place textbox into a single cell, also the same way I want to include a datagrid control and calendar control? How would I do that?
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Oct 10, 2010
I have a datagridview control that I'm using to display cache data to the end used on a web form. The issue that I'm having is that every time I re-run the application, and the cache data is re-generated... it loads duplicate data that's being displayed to the end user. I can't seem to figure out how to keep this from happening.
What I would like to have happen is that only unique data rows be returned and cached for the end user. Unless there are new data rows on the database that needs to be included in the cache data results...the previous data results should not be duplicated. I've tried to change a few properties on the datagridview control, but nothing seem to keep this from happening.
[code]....
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Jan 22, 2011
I have a data gird in my page that my gird have checkbox and i have to loop on checkbox and if checked add too collection but i dont undrestand How can?? this is my DataGrid
<asp:DataGrid ID="grdData" runat="server" AllowPaging="True" AutoGenerateColumns="False" HorizontalAlign="Center" Width="100%" DataKeyField="ContactID" CellPadding="4" ForeColor="#333333" GridLines="None" OnDeleteCommand="grdData_DeleteCommand"> <itemstyle backcolor="#E3EAEB" /> <pagerstyle horizontalalign="Center" backcolor="#666666" forecolor="White" /> <alternatingitemstyle backcolor="White" /> <columns> <asp:TemplateColumn> <itemtemplate> <input id="chkIsCheked" type="checkbox" title="<%#DataBinder.Eval(Container.DataItem, "ContactID")%>" /> </itemtemplate> <asp:TemplateColumn HeaderText="کد مشتری" SortExpression=""> <itemtemplate> <center> <%#DataBinder.Eval(Container.DataItem, "ContactID")%> </center> </itemtemplate> <asp:TemplateColumn HeaderText="نام " SortExpression=""> <itemtemplate> <center> <%#DataBinder.Eval(Container.DataItem, "FirstName")%> </center> </itemtemplate> <asp:TemplateColumn HeaderText="نام خانوادگی" SortExpression=""> <itemtemplate> <center> <%#DataBinder.Eval(Container.DataItem, "LastName")%> </center> </itemtemplate> <asp:TemplateColumn HeaderText="ایمیل " SortExpression=""> <itemtemplate> <center> <%#DataBinder.Eval(Container.DataItem, "PrimeryEmail")%> </center> </itemtemplate> <asp:TemplateColumn HeaderText="موبایل مشتری " SortExpression=""> <itemtemplate> <center> <%#DataBinder.Eval(Container.DataItem, "PrimeryMobileNumber")%> </center> </itemtemplate> <asp:TemplateColumn> <itemtemplate> <a href="EmailSender.aspx?Email=<%#DataBinder.Eval(Container.DataItem, " primeryemail=")%>"> فرستادن ایمیل با این شخص </a> </itemtemplate> <asp:TemplateColumn> <itemtemplate> <a href="ContactsDetaile.aspx?ID=<%#DataBinder.Eval(Container.DataItem, " contactid=")%>"> دیدن جزئیات </a> </itemtemplate> <asp:ButtonColumn ButtonType="PushButton" HeaderText="حذف" CommandName="Delete"> <itemstyle backcolor="Red" /> <HeaderStyle HorizontalAlign="Center"></HeaderStyle> <itemstyle horizontalalign="Center"></itemstyle> </columns> <edititemstyle backcolor="#7C6F57" /> <footerstyle backcolor="#1C5E55" font-bold="True" forecolor="White" /> <HeaderStyle BackColor="#1C5E55" ForeColor="White" Height="30px" HorizontalAlign="Center" VerticalAlign="Middle" Font-Bold="True" /> <SelectedItemStyle BackColor="#C5BBAF" Font-Bold="True" ForeColor="#333333" />
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Dec 5, 2010
I know that the datagrid control loops through a database table from the first row to the last, but I want it to loop from the last row to the first. How can I do that? Also I wanted to know how could I drop some rows according to my needs while looping from end to start, so that the datagrid only displays those rows that I need to display?
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Nov 7, 2010
check the VB behind code for any syntax errors.Unable to add new rows of data to a database using the DataGrid control.Compilation Error message is located at http://cforedu.com:View snap shot images of each line error at http://cforedu.com/snap.pdfThe VB code behind reads (revision 1.3):
[Code]....
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Feb 20, 2011
I would like to ask if there is any control act like grid to display records.The 'datasource' will be a customed class, this dataclass has List<T>, so I will populate each element by iteration into the grid.Any control can I use to work like a grid?The number of records will around 100.This control should also allow the user to select a record.
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Nov 15, 2010
I have Datalist control in my application which contains one Gridview control as a child control in it. Now at the time of giving datasource to the child control, it gives object reference error.Note:I am binding the child grid at the time of ItemDataBound Event of Datalist controlMy code looks like :
Protected void Datalist1_ItemDataBound(object sender, DataListItemEventArgs e)
{
DataSet dsTest;
[code]...
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Apr 6, 2010
I have 2 grids gvParent & gvChild I would like to filter gvChild when a row is selected in gvParent the linking fields are contractNo
I added a column for selecting:
<asp:TemplateField ShowHeader="False">
<ItemTemplate>
<asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False" CommandName="Select"
OnClick="LinkButton1_Click" Text="Select"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
I know how to handle the filtering of the grid (create a criteria and set to rowfilter of the dataview) But, I dont know how to get the value of the column of the selected row.
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May 24, 2010
I have a Gridview that I am using in a User Control. The grid loads great and my paging buttons that exist outside of the grid itself work properly. When I click my delete button inside the grid, I am getting an invalid postback message. How should I handle this? My control raises one event by the way.
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Mar 4, 2011
I have Datagrid , i want to clcik on row and get data in textbox , but my textbox is FreeTextBox control,i tried to use javascript but work for asp.net control not working for freetext box control, how i can capture this code is sample code but it work for asp.net control but not working for my freetextbox
[Code]....
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Sep 22, 2010
Simply put... I want to duplicate the example found at this link, in VB.net rather than C#.
[URL]
I would like the selectedvalue of the dropdown to display additional data base on its selection in multiple text boxes.
I have tried using the DropDownList OnSelectedIndexChanged property, within a DataGrid EditiItemTemplate, but I cannot retrieve data from the selection. (AutoPostBack is "True"). I can however use a button onclick event to fire a "prre-defined" selection value.
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May 27, 2010
I have 2 datagrid (using .net 1.1). I need to access column of second grid ( i need to make a column of second grid as disabled) when i click "Cancel" link button in First Grid. How can this be done?
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Jan 24, 2010
I have a situation where I currently have a HyperLinkColumn control that I would like to modify to have a Label or simple text appear in the same column as the hyperlink. I tried setting this in the ItemCreated event but encountered the following error message
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Nov 9, 2010
I also have a working application that popukates my datagrid with valid data rows from my DataBase. What I cant figure out is how to get each of the hyperlink lables to NAVIGATE to the correct and corresponding aspx page!
For example I have 5 rows in the datagrid and each row has its own hyperlink, each row contains contact and a short profile on 5 diffrent companies. For example when i click on let say row 3 that has (eg) Jimmy's Big Prawn's Restaurant listed in the the datagrid, I want to be navigated to a webform page dedicated to Jimmy's Big Prawn Restaurant.
[Code]....
I am guesing it has to do with the bolded text above, but "details.aspx" is just an empty webform, I would like the hyperlink to point to (eg) JimmBigPrawnRestaurant.aspx.
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Aug 9, 2010
I can't figure out what I"m doing wrong.. I followed this sample online at
http://www.4guysfromrolla.com/articles/091102-1.aspx to include a gridview in an email. But, it keeps throwing this error.. 'GridView' must be placed inside a form tag with runat=server.I've verified that the gridview is in a form, and there are no template fields in the gridview. Heres the gridview on my asp.net page..
[Code]....
[Code]....
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Mar 7, 2010
I've got a dropdownlist control that the user can select an an employee name and that should then fill in the detailsview control with specific information about that employee.
My dropdownlist control works fine and I do have AutoPostBack set to true. For some reason my detailsview doesn't work. There's no error message. The detailsview control just doesn't show up.
Here's my code:
This is the sqldatasource control for the dropdownlist control:
[Code]....
This is the sqldatasource control for the detailsview control:
[Code]....
Dropdownlist control:
[Code]....
Detailsview control:
[Code]....
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Dec 6, 2010
Finding DropDownList Control Within DataList Control?
[Code]....
[Code]....
<asp:LinkButton ID="AddBtn" runat="server">Add Committee</asp:LinkButton>
</FooterTemplate>
</asp:DataList>
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