i am a new to VS2008. I have a drop down list inside a gridview and Depending upon the selection a value from the database needs to be databound to another column.
I am using 'SelectedindexChanged' event but its not being triggered.
I have a GridView, with a DropDownList as one of the Columns. I can get the SelectedIndexChanged method to trigger - but I cannot figure out how to get other Data regarding which row this triggered on i.e. if I could get the value in the ID column (DocID below), that would be great. My code is a bit too long, so I am just posting snippets. In the *.aspx file I have:
[Code]....
In the *.aspx.cs File:
[Code]....
I am wondering if I can get the DocID from within StatusDropDownList_SelectedIndexChanged - so that I can make appropriate changes to the Database. For e.g. in the RowDataBound event, which I had a GridViewRowEventArgs e, I could easily do e.Row.DataItem - to get the DataItem, I am wondering if I get/do something similar in the SelectedIndexChanged method. (I would prefer this be not the GridView Row Index i.e. I would prefer the DataItem if possible.)
I have a usercontrol and in that i have a dropdown. i need async postback for dropdown selectedindexchanged event. i set the AutoPostBack=true for dropdown. Eventhough the event is not getting fired.
View 3 RepliesI just wanted to clarify if selectedIndexChanged works on ajax cascading dropdowns as mine doesn't fire. Its in a user control inside an accordion pane. I've read conflicting things about this. All I want to do is check that the last of the 3 cascading dropdowns has been populated an enable a button if so.... but the event never fires when i make a selection on the last dropdown. If it isn't suppose to fire is there a way to raise an event when the selection is made and unmade (as when you change one of the other dropdowns the value resets and the buttton needs to be disabled.
View 3 RepliesIn one webpage,
There is one updatepanel in that one gridview,
there is one dropdown in headerrow of gridview,
dropdown's selectedindexchanged event fire in FireFox but not in IE.
Basics: I have a text box (txtDepositAmount) that people can enter a deposit amount into and a drop down (ddlSelectedTerm) that sets the terms. Through these two values I calculate the APY (lblCurrentApy).
Rules: If only one of the values is selected I still want to do an update on the current APY label and clear it. If either value changes I want to update the current APY and recalculate.
The problem: As soon as I click away from the textbox and onto the drop down to select my term the drop down flashes and closes because the textbox TextChanged event was just fired.
I have to click on the drop down a second time to be able to select anything!
Do I need to change what event I'm looking at or do I need to move some of the controls outside of the UpdatePanel? Can this only happen if some of the business rules change? Should I just give up and go to javascript?
[code]....
in my web form i have a department dropdown box, in its selectedIndexChanged event i have to fill the equipment dropdown box and in equiment dropdown selectedIndexChanged i have to fill out the other textboxs.
the depratment dropdown box get its value from sqldatasource.
[code]....
what i want is when i run the page, it shows the very first deparment in the list, and according to that it should pop up the values in the other fields, means it should show the values in the equipment dropdownbox and from that one it should pop up the values in the other textbox.
here is my selected indexchanged event for department dropdownbox
[Code]....
I have a gridview that is inside a column of another gridview and I want to modalpopup a window when selectindexchanged in the nested gridview. I am having troubles getting the datakeyname of the selected row in the nested grid; here is the HTML:
[Code]....
and I am not sure how do I get the row value in this function:
[Code]....
I've created a gridview dynamically, now i want to fire an event when the selectedindex has changed.
GridView NewDg = new GridView();
NewDg.ID = "SubGridView" + e.Row.RowIndex.ToString();
NewDg.DataKeyNames = new string[]{"logentry_id"};
NewDg.SelectedIndexChanged += new EventHandler(NewDg_SelectedIndexChanged);
NewDg.RowDataBound += new GridViewRowEventHandler(NewDg_RowDataBound);
The RowDataBound works but it doesn't produce the right postback URL i guess.
In the RowDataBound i have the following code:
GridView sendingGridView = (GridView)sender;
e.Row.Attributes["onclick"] = ClientScript.GetPostBackClientHyperlink(sendingGridView, "Select$" + e.Row.RowIndex);
this produces the following code:
javascript:__doPostBack('SubGridView4','Select$0')
Only this doesn't lead to the postback to this function:
void NewDg_SelectedIndexChanged(object sender, EventArgs e)
{
GridView sendingGridView = (GridView)sender;
ViewDetails(Convert.ToInt32(sendingGridView.SelectedDataKey["logentry_id"].ToString()));
}
I have a GridView with a TemplateField where I'm hosting a button. The button has an event hanlder OnClick, so when it is clicked it will execute some code.The problem I'm having is that when I click the button in a row, the Button event handler is not excecuted right away. Instead, the GridView selectedIndexChanged is fired and then I need to click my button again to fire the button's event handler.So, is there a way I could know if the button or the row was clicked in the GridView SelectedIdexChanged event? And why the Button's event handler is not firering right away?
View 1 RepliesI Have the gridview control with 2 dropdown list and 2 text boxes,When the textbox chnaged event happen 1 row will create and the dropdown back to initial values( its not retaining the selected values),I am binding the control after text changed method,Is there any properties needs to be set or any other way we can retain the values in postbacks?
View 4 RepliesI have a gridview where i have two fields. one is product and second is sub category.
I need to do 2 things.
1. I need to populate the two combos from the database. But depending what is selected in dropdown 1 this will determine what needs to be populated in drop down 2?
how can i achieve this?
I have an gridview inside of a multiview inside of an updatepanel. I create all this dynamically with code (AutoGenerateSelectButton=true).If the SelectedIndexChanged event is fired, there is a full postback. How can I avoid this?
View 6 RepliesI'm having a problem with using a dropdown to filter the contents of another drop down. The basic idea is:
Dropdown 1 = CountryList (Column1)
Dropdown 2 = StateList (Column2)
I read the contents of a CSV file and populate the gridview. The user then visually verifies that the data is valid and proceeds to upload to the database. To do some testing, i have intentionally changed spellings of country names so they DO NOT match the countrylist which the grid view then flags with a different background indicating bad data. The user then edits the gridview. The Country and state columns then show a drop down control populated with the country list and filtered states list based on countryID.
Here's the ASP.NET ASPX Source for the section of code that is dealing with the gridview
[Code]....
Here's the section of VB Code behind that deals with handling the "RowEditing", specifically the binding of the dropdowns
[Code]....
The proglem is that these dropdowns are ment to easily fix minor errors in data. When i intentionally changed the spelling of "Canada" to Canadaa", this has no corresponding CountryID in the table and the ddlEdtStateID Dropdown's datasource filter does not work. I tried setting the datasource to nothing if a valid CountryID was not there and then i tried to use the SelectedIndexChanged event for the ddlEditCountryID to programmatically set the datasourceID for ddlEditStateID but when i try using CType(FindControl("ddlEdtStateID"), DropDownList) to set the DataSourceID, it does not find the control.
If the Country does not exist, then i just want the stateslist dropdown to say "select a country" but when a valid country is selected, it should display the filtered list for that countryID. Right now, if bad data is entered for the country, then the program crashes when it tries to populate the state drop down. I want it to just say, select a country when the countryID is not valid.
I want to automatically call the gridview's selectedindexchanged procedure on the first page_load event.
Can someone show me how this is done in C#?
I am having an issue with using a GridView template that contains an imagebutton control. my current ASP code is as follows:
[Code]....
I am new to asp.net (I may use some incorrect termology while I explain my issue...) and need some help with DropDownList in Gridview. Currently I have a GridView set up with three Columns bound to a database: Column1 - some kinda of index, Column2 - string, Column3 - DropDownList(called Active). So far when I build the page, all the columns show up and the DropDownList appears and the values are bound correctly. I want to change a value in the DropDownList and automatically update that value in my database.
I have set AutoPostBack = true and I made a DataObject (called UpdateActive) to update the database (it takes 2 inputs, the Column1 index and Column3 DropDownList value).However, I don't know how to find the row that I am changing, is there a way to figure out what row it is (like finding the Column 1 index?). Also, I don't want to have to click a button to update the data.
[Code]....
how can i populate the detailview in insert mode with values from gridview on selection?
Filter by date:
<asp:DropDownList ID="DropDownList4" runat="server" AutoPostBack="True" DataSourceID="SqlDataSource3"
DataTextField="CDATE" DataTextFormatString="{0:D}" DataValueField="CDATE">
</asp:DropDownList>
[Code]...
Get the DataSource of GridView control in SelectedIndexChanged event handler?
View 6 RepliesWith ref. to this post, [URL]
I have placed a dropdown list in Gridview footer, now i want to access the dropdown selected indeex changed event as below. But i'm not able to access the event.
protected void ddlCatg_SelectedIndexChanged(object sender, EventArgs e)
{
DropDownList ddlCategories = grvExpenses.FooterRow.FindControl("ddlCatg") as DropDownList;
DropDownList ddlExpenseSubCategories = grvExpenses.FooterRow.FindControl("ddlSubCatg") as DropDownList;
ddlExpenseSubCategories.Items.Clear();
[CODE]..
I have a grideview and inside grideview I have check box ,I don't want SelectedIndexChanged grideview event to fire on checkbox checked in GridView.
View 1 Repliesi have a gridview in which i have a 3 column serial no, particular , amount .in particular column i have a feild tution fees . and its shows it amount any integer value( like 5000). now i have a dropdown list outside the grid n if i selct any value from that dropdown list . the tution fees will be change on the event of selecting value of drop down list.( say if i select the value 10 then it tution fee will be 4500 , means 10% discount on tution fees) how it will be done?
View 1 RepliesI'm facing error in code behind. It is showing the above exception. Code behind code is as follows
HTML
<asp:GridView ID="gv_TPBill" runat="server" AutoGenerateColumns="false" DataKeyNames="Instance Name"
OnRowDataBound="OnRowDataBound" OnSelectedIndexChanged="OnSelectedIndexChanged">
<Columns>
<asp:TemplateField HeaderText="Client Name" ItemStyle-Width="150">
[Code]....
I have a checkbox placed inside a gridview:
<GridView><asp:TemplateField HeaderText="Driver"> <ItemTemplate> <asp:CheckBox ID="CheckBoxDriver" AutoPostBack="true" OnCheckedChanged="GridView_Persons_SelectedIndexChanged" ValidationGroup='<%# Eval("ID") + "-" +((GridViewRow)Container).RowIndex %>' CssClass="CXDriver" runat="server" Checked='false' /> </ItemTemplate> </GridView>
For example: A listViewItem 1 has 3 drivers are checked, A listViewItem 2 has 2 drivers are checked.
Therefore, if changing the selectedIndex of the list, the checkbox indexChanged event will be fired.
How could I disable the autopostback of the checkbox during the listview item changed.
i have a dropdown with month names if the user has data for the month tht is selected then gridview displays the rows with day nos as per the month but if the gridview has no data for the same the dropdown or gridview via some event should call a insert procedure to insert data into the table for tht month with daynos ad rebind the gridview witht the rows just created
View 6 Replies