Data Controls :: Update Row Cell Values In GridView On DropDownList Selected Index Changed
Jul 17, 2015
How do i change the name column text the current row when the selected index of drop down is changed? ex:first row is mudassar khan and belgium, when i change belgium i want mudassar to be replaced to a name which i fetch from database....
I have a gridview where I am opening a popup page when user selects a row. If I am not using update panel then Select button is able to open popup page.
If I am adding Update panel, the popup page is unable to open. What could be the cause?
I want to filter grid view, drop down list should select the column and text box will filter the column. like ID NAME Phone Designation fields in gridview.i will select Designation in dropdown and type programmer in text box .so it should filter programmers from the gridview...
i need to Filter and display Google Map Markers from database based on DropDownList selection. for that I need to pass the selected value of DropDownList to the query.What should i do in the following code to do the above task?
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI;
i have 2 drop down list..first for city and second for state i want to fill the state list when the city is selected...m using the code
protected void Ddl_SelectedIndexChanged(object sender, EventArgs e) { String sqlQuery="select SM.StateId,StateName From StateMast SM,CityMast CM where CM.StateId=SM.StateId AND CM.CItyId='"+ Convert.ToInt16(DdlCity.SelectedValue.ToString())+"'"; DdlState.DataSource = cls.Select(sqlQuery); DdlState.DataTextField = "StateName"; DdlState.DataValueField = "StateId"; }
but nothing is happing on selecting city..i have set the autopostback of city=true..select is a function which is returning data tablepublic DataTable Select(String sqlQuery) { con.Open(); SqlDataAdapter adapter = new SqlDataAdapter(sqlQuery,con); DataTable table = new DataTable(); adapter.Fill(table); con.Close(); return table; }
I am using SelectedIndexChanged in the DropDowList and it works fine and populates a GridView based upon a site selection.
Is there there a way I can reset the SelectedIndexChanged so if user wants to refresh the GridView they would open the drop down list and click on the same selection again?
How to get the selected item from the listbox in the selected index changed event. I tried: Label1.Text = ListBox1.SelectedItem.Text; It is giving me object set to null reference.
foreach (ListItem item in ListBox1.Items) { if (item.Selected) { //lblResults.Text += item.Text + " "; Label1.Text = item.Text; } }
there is 3 drop down list control in in first dropdown load Districts when page load when we select or index changed in drop down1 items changed or loaded in drop down list2 according to the disrict.According to the item selected in drop downlist2 items changed or loaded in drop downlist3.
I have a simple query based on the index changed event of a dropdownlist in ASP.NET. The scenario is i have a dropdown list bearing a collection of items (say ONE, TWO, THREE, FOUR, FIVE) with the default value selected as 'ONE'. Now, when the client changes the index (say the client selects 'TWO'), a confirmation box is prompted asking 'Are you sure want to change the index?' with the buttons YES & NO. Now, the problem is, if YES button is clicked then its working fine as the index is changed. But when NO button is clicked in the confirmation box, I do not want the index to be changed to 'TWO' and it should be holding the previously selected value which was 'ONE'. How can I do this? For which event should I write the code, as I cant think of writing the code for the IndexChanged event because here the index change has already occured and since there is no 'IndexChanging' event in ASP.NET, where shall i write the code
In ASP.NET, I can get the selected index of dropdownlist using:
var dropdown1 = document.getElementById('dropdown1');But I want the selected index of that dropdownlist, which is present INSIDE a GridView.How to get that using JavaScript?
I have a grid with 5 rows and 5 columns, All containing templetefield(Combobox)I am trying to set the background color of my grid cell(contain combobox) depending upon which item is selected. (again, dependent on item selection, so background color is not permanent). How can i achieve this?
Based on the gridview row selected i need to populate some dropdownlist which change values based on selection.. And i am populating these dropdownlists at page load..
When i select a row in gridview I want the dropdownlist to show the values in the gridview row which i have selected.. I am doing it like this:
On Button click(postback), my dropdownlist of gridview is getting blank, so i m getting error of "Object Reference...." on the line "ddl.selecteditem.value"Also, dropdownlist's selectedindexchanged event is fired on Button Click(Page Postback), which is making the dropdownlist to go blank. AutoPostBack of dropdownlist is set as False,
I have a details view control which contains a dropdown list.
I would like to update a row in the DV based on when the selected index change event occurs in another row of the
So far I know that 1) Place code in detailsview1.rowupdating event .
2) Make a row copy, not sure about the syntax here
Dim aRow As DetailsViewRow = Me.DetailsView1.Rows(DetailsView1.Rows.Item(?)) 3) Find my DDL Dim aDDL as dropdownlist = CType(aDDL.cells(?).Findcontrol("Dropdownlist3"0, dropdownlist) If aDLL.selected IndexChanged then Dim aTextbox as textbox = Ctype(detaislview.cells(?).findcontrol("Textbox6", textbox6) aTextbox.text = now()
i've dynamically created new rows on button click in gridview with 3 dropdownlist.for the first default row the selectindexchanged is firing and on pageload 1st ddl is loading with values and basing on selection the second ddl is showing values and third ddl is showing basing on second ddl. Now, when i click add new row, a new row is created with 3 ddl's ...1st one is showing properly but when i select from that ddl ,it should show data accordingly but its not showing particular data but showing all realted data from DB.same for 3rd ddl.
Also when new row is added and the first ddl is selected on postback the second ddl data is refreshing..
I have a panel which has a repeater within it. Within the repeater I have a few controls. One of those controls is a Drop Down list which has an OnSelectedIndexChanged event. I can get this to fire without issue but I cannot find my DropDownList control within that repeater within the SelectedIndexChanged event . The repeater has an OnItemDataBound event and I can use the RepeaterItemEventArgs to find the control using e.Item.FindControl("ControlName") without issue but when that event occurs is NOT when I need to find the DropDownList.
What I want to do is have another control's Visible property be set to "true" when the value of the DropDownList meets a certain value. As far as I know I can only do this during the SelectedIndexChanged event and I can't change the signature of the event by trying to use RepeaterItemEventArgs.
I want three fields in dropdown list in gridview . Pending , Solved , Escalate.
When I first submit the record it should show pending, then from dropdown I want to update it to solved or escalate , and it will be update with dropdown in database. How can I do this process....
I have a problem with keeping the selected values in DropDownLists in rows in GridView while paging. I have this code behind:
private void RememberOldValues() { ArrayList LinijaIDList = new ArrayList(); int index = -1; foreach (GridViewRow row in GridView1.Rows) { index = (int)GridView1.DataKeys[row.RowIndex].Value; if (Session["equal_ITEMS"] != null) LinijaIDList = (ArrayList)Session["equal_ITEMS"]; if (row.Cells[0].Text == lineTextBox.Text) { if (!LinijaIDList.Contains(index)) LinijaIDList.Add(index); } else LinijaIDList.Remove(index); } if (LinijaIDList != null && LinijaIDList.Count > 0) Session["equal_ITEMS"] = LinijaIDList; } protected void Button1_Click(object sender, EventArgs e) { //Session["equal_ITEMS"] = null; RememberOldValues(); GridView1.AllowPaging = false; BindGrid(); //RePopulateValues(); DataTable dt = new DataTable(); dt.Columns.Add(new DataColumn("LinijaID", typeof(int))); dt.Columns.Add(new DataColumn("Ime", typeof(string))); ArrayList LinijaIDList = (ArrayList)Session["equal_ITEMS"]; //if (LinijaIDList!=null) //{ foreach (int LinijaID in LinijaIDList) { foreach (GridViewRow row in GridView1.Rows) { DropDownList Ime = GridView1.FooterRow.FindControl("ImeDropDownList") as DropDownList; int rowID = (int)GridView1.DataKeys[row.RowIndex].Value; //string Name = row.Cells[1].Text; string Name = Ime.SelectedValue; if (rowID == LinijaID) { DataRow dr = dt.NewRow(); dr["LinijaID"] = LinijaID; dr["Ime"] = Name; dt.Rows.Add(dr); } } } GridView1.AllowPaging = true; Session["equal1"] = dt; Response.Redirect("CheckedRowsPage1.aspx"); } // else //{ // GridView1.AllowPaging = true; // Session["equal1"]=null; // } }
When I insert a value in the TextBox2 and want to select only the rows from the GridView from different pages which have value in the first column the same as the value in the TextBox2, after clicking on Button1 I get this error:
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
does anyone know if the gridview can tell you if a cell's contents have changed (during an edit) in order to determine if an update should be made against the database?
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: