I have a gridview and i am trying to determin when the selected gridview datakey value is nothing then set a serrion variable to 0.[code]Object reference not set to an instance of an object. on the 1st line.
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Just wondering the best way for determining if a rich txt box scrollbar is visible
View 3 RepliesUsing VB.Net (Windows Application)Gridview and TextboxWhen I enter the number or character in the textbox, that value should blink in the gridview.
For Example,
GridView has
ID Name
[code].....
When I select a row from my gridview by clicking on a linkbutton called 'Modify' and is the last cell in the row. Using the code below I can retrieve the key value from within the GridView1_RowCommand sub and move to the modify screen with the correct data.
Dim r As Integer = e.CommandArgument
GridView1.SelectedIndex = r
Dim Company As String = GridView1.SelectedDataKey(0).ToString
[Code].....
When I try to access the first row it returns the first row value from the original Gridview and not from the re-ordered one.
I have a text box and button inside a panel , and I want to show this panel right next to gridview selected row , gridview is also inside another panel , is there anyway to find out selected rows position ? This is a asp. Net page and I am using vb.net . Panel can be replaced by div
View 2 Repliesi have a button in gridview whose command name is "hold" i want when i click n hold button of first row then the whole row values will be transfererd to default2.aspx ...
and if i click the hold button of gridview second row then the second row value will be transferred to Default2.aspx ,,how to do that ?
i m using that ...but it always transfer the 1st row value even i select first last or middle row ..in gridview ....
[Code].....
I have a gridview which gets its input from a database with sql. There is a column with checkboxes in the gridview, so you can select which row you want to export. There is also a column that's called "Project Number". When you push the button "Export" the program should figure out which row is selected, get the project number from this row and connect to the database to get the data from the selected projectnumber. I already got the part where it gets the selected checkboxes. But I'm stuck at the part where it gets the projectnumber from the selected row. Must be something with Datakeys I think.
View 2 RepliesIn RowCreated of the GridView i add following script to select a row:
Select Case e.Row.RowType
Case DataControlRowType.DataRow
e.Row.Attributes("onclick") = Me.Page.ClientScript.GetPostBackClientHyperlink(Me.MainGrid, "Select$" & e.Row.RowIndex)
End Select
This works like a charm(i thought).But when i debug the SelectedIndexChanging and the following SelectedIndexChanged events, i observe that the RowState of the selected Row switches from normal{0}/alternate{1} to 3 instead of selected{2}. This occurs between SelectedIndexChanging and SelectedIndexChanged. Why does this happen? The next time i programmatically set the selectedIndex(f.e. after a new row was created), i have two rows that are selected and no (un-hacky) way to deselect the old in RowDataBound, because of the invalid RowState of 3(should only be 0,1,2,4 or 8).
Delete Selected Rowin A Data Gridview
View 11 RepliesI'm trying to sort records in the gridview right after a radio button is selected. My approach is with the dataview, but because the dataset variable doesn't survive a round trip to the server, I don't know how to make this happen.[code]
View 1 RepliesI am trying to make a webpage that has a list of items on 1 page which is displayed in a gridview that has the auto generate selected button enabled, they can click this button and it loads the item into a collection which i have stored in a session. On another page the session containing the items they selected gets displayed in a gridview. [code]...
View 2 RepliesI want to change the text of two labels based on the the selected row of a gridview.I keep getting an error that says the public member row does not exist on linkbutton
Protected Sub LinkButton1_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Dim LinkButton1 As LinkButton = DirectCast(sender, LinkButton)
Dim tour As Label = CType(sender.Row.FindControl("label2"), Label)
Dim depart As Label = CType(sender.Row.FindControl("label3"), Label)
[code]....
I have a button on the page and a gridview with checkboxes on the first column. The gridview is bound to a List. On buttonClick, I need to retrieve the underlying bound data item (MyEntity) for each selected row. How can I do this? I can't simply recreate MyEntity based on the gridview columns, because I am not displaying all the fields of MyEntity. I need a way to get a hold of MyEntity based on the key (MyEntityId).
View 2 RepliesI have a GridView with image buttons for selecting rows. I am using an OnRowDataBound event to color selected rows Blue:
e.Row.ForeColor = System.Drawing.Color.Blue
Now that works great as long as I don't set a color either in the CSS stylesheet or on the grid Items themselves. If I do that, then all rows are colored that color and I don't get my Blue selected rows color for selected rows. I would like to color the text in the grid something other than black.
i have a problem with my data gridview i want to edit selected record in datagrid but i am facing some problem here is the code
[Code]...
I have a list of registered users in gridview...
I want when i click on delete button on selected item in gridview, then the record of user will be deleted from the whole database... on single delete command of sqldatasource in gridview....
I have a gridview in webform and a panel1 which I used as a modalpopup control. I wanna show panel as modalpopup per row item select using commandrow of gridview ... There are two controls inside panel1; literal1 and literal2. I want when the item in the gridview is selected by user then panel 1 shows as modalpopup which displays the records from gridview in panel 1 controls i.e literal1 , literal2. I want to retrieve the selected row item from gridview to modal popup panel1 control..
View 1 Replieshow to retrieve the selected row cell value if it is visible property is false in gridview ?
View 1 RepliesThis line of code references a checkbox in a Gridview, how can I assign the value of the check box 1 or -1, I think it is for checked or unchecked, to a variable so that I can run an if statement against it, and change it to True or False?
dt.Rows(row.DataItemIndex)("DisplayString") = (CType((row.Cells(3).Controls(0)), CheckBox)).Checked
I have standard .net 2.0 gridview control from which i want to get row keys or cell values from the grid when a row is selected.
I also need to call a method each time a row is selected.
How i can do this using ASP.net & VB?
i want when user click on hold button of particular row then the record from the particular row is transfered to another page. if i click on the hold button of 1st row of gridview then seats=35 and booking closed =08:00:00 PM willbe trasferred to [code]and if i click on the manage button of same row then the record of that row will be transferred to [code]
View 1 RepliesI am currently working with a gridviews in asp.net(vb). I have it where I am able to pass information from gridview1 to gridview2 on the next page. However, what I need to do now is pass a variable from a column in gridview2 to the header of that page. i.e. in Gridview2 we have a column and all results are the same, the column header is StoreName and all the data for column is Sears. I know how to make the entire column invisible, but at the top of the page I need a sentence that looks like this:
Store Information for Sears
I am having trouble with what the code would look like for that line, all the thing I have tried have resulting in using a variable before it is declared. I need this line to be dynamic as the results will not always be for Sears.
i'm trying to store the datagridview rows in a variable and not able to get it right
dim dgvrows() as datagridviewrow
dgvrows = mydatagridview.selectedrows
What is the correct way of assigning the selected index's value from a listbox to a variable? The user selects an item in a listbox and then the output changes depending on their selection.
I use:variablename = listbox.text
in the listBox_SelectedIndexChanged event and this works.
When I use the button_click event I use:
variablename = listbox.selectedindex
But this does not work in the listbox_selectedindexchanged event.you let me know if it is okay to use it like I did above or if I will run into problems and why you cannot use the selectedindex method.
I am trying to have the index value of a selected item in a combobox returned to a variable. Then, if the variable = 1 (which would be the index of th second item in the combobox), I want a groupbox to be hidden (be invisible) on the form. Here is my code...Getting an error that says:
'ListIndex' is not a member of 'System.Windows.Forms.ComboBox'
Code:
Private Sub cbxAccounts_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)
Dim selection As Integer = CInt(cbxAccounts.ListIndex)
If selection = 1 Then gbxCheck.Hide()
End Sub
I am trying to have the index value of a selected item in a combobox returned to a variable. Then, if the variable = 1 (which would be the index of th second item in the combobox), I want a groupbox to be hidden (be invisible) on the form. Here is my code...Getting an error that says:[code...]
View 1 Repliesi set the datasource property of my combobox to datatable and ofcourse the displaymember and value member and now i want to take the text in the selected item aand save it into variable? i tried this
dim x as string=nothing x=combobox1.selecteditem.tostring but it is returned datarowview so what i must do??
the dropdown list is showing data from database, but how to retrieve the selected value and store it in a session variable??
View 1 RepliesI have 13 variables, all called Items1, Items2, Items3 and so on. I have a combo box with items in, each time I click a button I want it so whatever is selected is stored in a variable and if the button is selected again then it stores whatever is selected in the next variable. I know all the code for selecting items in a combo box and transferring it to a variable but the problem I cannot do is the part where each time a button is clicked it stores whatever is selected in the combo box to the next variable.
View 9 RepliesI am having 3 radio buttons and a button The codes should be added to the button_click event, when ever the radio button is selected and the button is click then, The codes should determine which button is selected and assign it to a variable. Create a two parallel 1-dim arrays and populate it with the data below:
[Code]...
