Data Controls :: DropDownList Control Shows No Data When Bind In EditItemTemplate Of GridView
Sep 6, 2013
I have requirement to bind ASP.Net DropDownList control in EditItemTemplate of GridView.
I preferred the tutorial:
[URL]...
i have followed same steps just but difference is i have a edit imagebutton with commandname="Edit".Also dropdown needs to be binded from different table(directory) and not the table through whicch grid is binded(details).
if (e.Row.RowType == DataControlRowType.DataRow && (e.Row.RowState & DataControlRowState.Edit) == DataControlRowState.Edit && GridView1.EditIndex == e.Row.RowIndex)
{
DropDownList DStatusEdit = (DropDownList)e.Row.FindControl("DStatusEdit");
string query = "select distinct status from directory";
SqlCommand cmd = new SqlCommand(query);
DStatusEdit.DataSource = GetData(cmd);
[CODE]..
the page is running but when i click edit image button the dropdwn shows but no data in dropdown binded it is empty.
My gridview is inside update panel.
How can i achieve this?
Should dropdownlist in my case be binded inside rowcommand and how?
Using Visual Web Developer Express 2010 with ASP.NET 4.0.
I have a FormView and I want to set a default value from the database. I can't get it to bind to the value in the database. My FormView looks like this:
[Code]....
The EditItemTemplate does not even load when I click the edit button on my FormView control, but I don't get an error message either.
Using Visual Web Developer Express 2010 with ASP.NET 4.0.
I have a FormView and I want to set a default value from the database. I can't get it to bind to the value in the database. My FormView looks like this:
i hvae a database named anil and TABLE NAMED COURSE_IN fields are (gridview with regnumber,name,dtjoin, qual, OY, OTY,VDA) and another table course with (OY, OTY,VDA) fiedls. my grid view displays adata from databse with edit facility.
one dropdownlist out side grid selected value is displayed in gridview
I have a dropdown list within a listview 'EditItemTemplate' and 'InsertItemTemplate" which I am trying to populate from the database with code behind with ItetmDataBound event. Problem is I am getting NullException when I use this code which works fine for ItemTemplate.
I have a dropdownlist embedded into an asp.net gridview. I have successfully populated the dropdown list in the footer but have not been able to populate the dropdownlist in the EditItemTemplate. Here is my code that works. I need to do the exact same thing for a dropdownlist embedded in the update functionality of the gridview.
I have two embedded dropdown lists in Gridview control. One gives you business channel options and the other represents products depending on the business channel selected.I am trying to use different data sources for product dropdown list depeding on what the user selected from the business channel drop down list. How could I do this. Here is my current code:
GridView gvchild = e.Row.FindControl("gvOrders") as GridView; drplist = gvchild.FindControl("drp1") as DropDownList; // den also same error object reference not set to an instance of an obj
Gridview showing error while trying to edit records
error: Server Error in '/' 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 Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
Line 134: GridViewRow row = (sender as Button).NamingContainer as GridViewRow; Line 135: //string Invoice_No = (row.Cells[0].Controls[0] as TextBox).Text; Line 136: string orderdate = (row.Cells[1].Controls[0] as TextBox).Text; Line 137: string Posted_By = (row.Cells[2].Controls[0] as TextBox).Text; Line 138:
I have an ObjectDataSource with a number of parameters. These parameters are binded in my FormView EditItemTemplate and the ItemTemplate. My Stored Procedure column names in my ItemTemplate are different to the Bind properties used in the EditItemTemplate. This is obviously throwing an exception when I update a record.
Instead of using Bind("Columne Name") in my EditItemTemplate how do I use a ControlParameter to reference a TextBox in the EditItemTemplate?
I may be wrong but I'm trying to use the PropertyName=Controls but i do not know how to reference the Textbox in the EditItemTemplate.
I have a problem ,i want to 2 dropdownlist box on a form and one will take loaded from data at the time of pageload and data of second dropdownlist box will change according to selected item in first dropdownlistbox ,and after that gridview will dynamicaly bind from some data according to choosen data of second dropdownlistbox .
I uses lots of code but i am not able to dynamicaly bind dropdown and gridview
I have a Gridview and two link button in that GridView , one link button click is to add edit row ( Edit ), one link button click is to select row ( Select ). I have a dropdownlist inside row which selected when i click link button Select in the gridview edit template, as of my business logic i need to show the dropdownlist only when the user clicks Edit button and when the user clicks Select button . That mean when the user clicks Select button then they clicks Edit button on the gridvview i should allow him to edit the dropdownlist (showing the value to the user through a label).
ASPX CODE
[Code].... C#
When I click Select link button , then I click Edit link button . They have errors : Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index" I don't know what error?. How to fix it
I created 3 category table. categry1,categry2,categry3. product table.
And then use of gried view add ,edit ,update ,delete product . in product table.
In gridview retrive data from product table . i select categry from dropdownlist in gridview categry1, categry2, categry3 and save update dropdown list category value dynamically in product table. not define value static in source code.
When select category 1 change on selected index change categary 2 or 3.
In my code I used text box to ediit update delete. but here i will use dropdownlist.
I have list of addresses and would like to bind ZIP Id to DropDownList.
when I use SelectedValue property it throw the error: 'DropDownList1' has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value.
No you cannot add a third parameter in the Dictionary. It contain Key Value pair data.But if you want to add third parameter then simply use DataTable and add these in the DataTable row.Name of Builder , Title Of Buidler , Builder ID
So how to acheive that task ? so far i did like this :
public void AddNewCMP(string PersonName , string PersonID , string PersonTitle) { var dt = new DataTable(); if (ViewState["CMPDataTable"] != null) { dt = (DataTable)ViewState["CMPDataTable"];
[Code] ....
Now on button click i want to add six drop down values to AddNewRow(value1,value2,value3) method .... how to do that ?
I'm attempting to load DropDownLists from the C# codebehind as the FormView switches modes to Edit and displays the EditItemTemplate. I present the data in a FormView ItemTemplate using text boxes. When the user selects Edit, I have been attempting to load the EditItemTemplate dropdownlists by creating a dataset and binding it to the control, without success.
I've successfully loaded them in previous projects from within the .aspx code using <asp:ListItem> and within the C# code behind using Control.Items.Add(new ListItem), which are essentially the same thing of course . This project is different in that I want to get the data from a stored procedure on a MSSQL server.
In my latest attempt, I can see the data in the datasets. I'm getting "Error connecting to database.'eitRace' has a SelectedValue which is invalid because it does not exist in the list of items.Parameter name: value"
I include the code below. If someone could point me to an example I would be greatful. There has to be an elegant way of accomplishing this.
I have a gridview and it has two EditItemTemplates. I want to update the items inside the second dropdown (EditItemTemplate) when I select an item from the first dropdownlistbox (EditItemTemplate). I want to update dropdownlist2 when I select an item from dropdownlist1. How can I do this?
Girdview has dropdownlist TemplateField called ddlSate, how to bind state field value in sql table to selected value of ddlState dropdownlist control? For example the sql table has AL value for state field, (Note by default ddlState lists all states options with sqldatasource), how AL is selected in ddlState when binding to ddlState?
Secondly, when user selects different state like GA, how below update stored precedure works? that means how to find ddl selected value in update procedure as shown below question mark line:
ths is my html code here i am editing the gridview data on the edititemtemplate itself but it shows error when i am going to get the testiActive .And also the when i delete it shows the object Reference exception. i do no what the issue the same thing i used on the updating - there i got the id value - when i am going to delete it show error ther.
[Code].... and here is the updating code
[Code]....this is my Gridview_Deleting Code
string id = ((TextBox)GridView1.Rows[e.RowIndex].Cells[0].FindControl("testid_TextBox")).Text;
