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.
I downloaded the code and when the gridview loads it works; however, when I select the next gridview index page, the gridview is blank. Don't know why it is not working like it should.
I tried out another article (Search GridView with Paging on TextBox KeyPress using jQuery in ASP.Net ). Need to add more search text boxes to that gridview with Paging?
I am trying to retrieve the values from the textboxes in the gridview footer row but getting the following error when trying to save the changes:
Object reference not set to an instance of an object. Description:An unhandled exception occurred during the execution of the current web request. 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:
[Code]....
Line 63: Line 64: Line 65: jobName = CType(footerRow.FindControl("txtJobName"), TextBox).TextLine 66: Line 67: jobDescription = CType(footerRow.FindControl("txtJobDescr"), TextBox).Text
Below is the gridview aspx code:
[Code].....
Below is the VB.NET code:
[Code]....
how to add gridiview footer row textbox values to a database....
I have a repeater which is binded using a Collection of Entity Data Framework.
Once the repeater is binded using the datasource, the user can control the no of rows present in the repeater using a Dropdown list on the page. For ex: if datasource has 2 rows, user want to add 3 more rows, user selects 5 from dropdown, which adds 3 additional rows to the Repeater. I am able to do this.
The repeater has textbox controls in each row. Now once the user enter the values in this textbox of the newly generated rows, the user can save the values entered with the no of rows specified.
I have a button which is outside the repeater and on click of this i need to validate all the textbox values and save them into dB accordingly.
Here is my code
Repeater.aspx
[Code]....
[Code]....
Repeater.aspx.cs
[Code]....
Right now the problem is im not able to fetch the values of the textboxes present in the newly generated rows.
I have two gridviews.I want to know how to pass selected gridview row from gridview1 to gridview2 that has rows of textboxes in it.Each row selected in gridview1 should be should be displayed in textbox row of gridview2.
I got a list of customers That I'm gone show in the gridview. I have added a checkbox infront of every customer so i can select what customers gone be used and passed to the next method. With a little bit of strugle I almost got everything working now except for this thing with keeping the values of checked customers when I page to the next page (2,3,4,5 ect).
I want to delete grid view row on button click .when I select a row and click on delete button the selected row should be delete using jquery,with out using database . I want to do this work on button click using jquery
I have one gridview with page size 5. I have paging inside. I have radio buttuns on the gridview. If i select row in 1 first page indexwith radio button and back to second page index and when i come to first page index, my radio button selection has been lost.
I have grid view when click Search gridview will display and also click from dropdownlist it should display. Have a link in gridview if click link the values should pass to another page in textboxes so that I can update again. My issue is I cannot search when click search button and not from dropdown also.
Private Sub BindGridView() Try Dim filter As String = "" If ddlOwnerDepartment.SelectedValue <> "" Then filter = filter & " AND OwnerDepartment ='" & ddlOwnerDepartment.SelectedValue & "'"
I have an ASP .NET GridView with Paging. One column in it has a CheckBox. In a certain scenario, I want to uncheck the checkboxes that are checked.
foreach (GridViewRow dr in gvMyGridView.Rows) { if (dr.RowType == DataControlRowType.DataRow) { if ((CheckBox)dr.FindControl("chkIsApplicable") != null) { ((CheckBox)dr.FindControl("chkIsApplicable")).Checked = false; } } }
But unfortunately because of Paging only the records that are currently shown in the Grid can be accessed in this way. I want it to apply to ALL the items in the GridView. This should happen client side and when the user commits will get saved to the database.
I know this not the right place to ask javascript related questions.
But I dont understand how else to get the answer.
I have built an application using asp.net 4.0 and entity framework. I have implemented the routing feature introduced with the .Net 4.0 version.
Now, I have a page which will fetch products from the database and display them in a listview. For the paging purpose I have used the DataPager.
I had a really hard time making the paging feature work with DataPager as it is not fully compatible with the Routing feature(asp.net 4.0).
Now I want to give the user the option to select multiple products to compare. For this purpose I have placed a checkbox with everyproduct.
Now the problem:
I dont know how to find which checkbox was selected. i want to find the checked checkbox using javascript.
I have binded the list of products to the listview at two occasions; once directlly to the listview in page load and second time during the pre_render event of the dataPager. (As I said I had a really hard time to get this combination to work; Listview+DataPager)
Is there a way i can send multiple documents to be printed by looping through a gridview with checkboxes?
I need to get teh document which is in the formats of .doc, .docx, .pdf, and .rtf and print them. This will be in a gridview and depending on which is selected, the documents will be printed..
I have this GridView:
[URL]
This is GridView code:
[Code]....
This is my back end .cs code:
[Code]....
how i can accomplish this? I need to loop through the GridView and Print the documents which are located in this directory:
[URL]
The document i want to print is in the SELECT, see [cv]..
I have a gridview and users would select some records and would click on the submit button and i will be saving those records into database using a stored proc.... now .... just below the gridview and above the submit button there are few checkboxes by default they wud be checked. How would i save the selected values and the checked boxes in database i wrote the stored proc for the gridview but how would i save the checked checkboxes into the same table.
For i As Integer = 0 To gvSelectScreen.Rows.Count - 1 Dim chkTemp As CheckBox = TryCast(gvSelectScreen.Rows(i).FindControl("cbStatus"), CheckBox) If chkTemp.Checked Then ContractNumber = gvSelectScreen.Rows(i).Cells(0).Text ClientProgramNumber = gvSelectScreen.Rows(i).Cells(1).Text ClientProgramName = gvSelectScreen.Rows(i).Cells(2).Text StartDate = CType(gvSelectScreen.Rows(i).FindControl("txtStartDate"), TextBox).Text EndDate = gvSelectScreen.Rows(i).Cells(5).Text Dim connStr As String = ConfigurationManager.ConnectionStrings("MainConnectionString").ConnectionString Dim myCon As New SqlConnection(connStr) Dim cmd As New SqlCommand("usp_ParametersFromGrid") Dim dt As New DataTable cmd.CommandType = CommandType.StoredProcedure cmd.Parameters.Add("@ContractNumber", SqlDbType.VarChar, 22).Value = ContractNumber.ToString() cmd.Parameters.Add("@ClientProgramNumber", SqlDbType.VarChar, 22).Value = ClientProgramNumber.ToString() cmd.Parameters.Add("@ClientProgramName", SqlDbType.VarChar, 100).Value = ClientProgramName.ToString() cmd.Parameters.Add("@StartDate", SqlDbType.VarChar, 20).Value = StartDate.ToString() cmd.Parameters.Add("@EndDate", SqlDbType.VarChar, 20).Value = EndDate.ToString() cmd.Parameters.Add("@RequestID", SqlDbType.VarChar, 50).Value = RequestID.ToString() cmd.Connection = myCon myCon.Open() cmd.ExecuteNonQuery() myCon.Close() End If
Now above the submit button as i said, there are few checkboxes and they are checked by default...how would i save the selected item (in the gridview and the checked checkbox values in the same row in the database(sql server)
