All programmers would want to prevent the users from overflowing input data fields. The DataGridView feature allows the programmer to specify the MaximumInputLength property for a DataGridView column at design time but it does not give the programmer access to
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In my datagriedview i have 5 column called T,C,F,S and H.
I want to specify in column C that the user must enter 3 digit. For column H the maximun value should be 2000 so user should not enter more than 2000.
how i can specify this condition for my datagriedview column?
I got this error message when I only typed about 60characters. I have no idea why this happened to me since I have my address datatype set to varchar(100), I even had it set to varchar(MAX) at one stage but that made no difference. May I know what I've done?
View 2 RepliesI am trying to placed several check boxes (15) in a group box or on a form. I receive the following error message in Visual Studio:
Cannot set column, "The value violates the MaxLength limit of this column".
how can i limit the use of a character? Specifically "." period.
View 3 RepliesI want to create a simple page that allows our Admins to select all the users in a district and then create an Email in their Default Email Program for example Outlook so they can edit it from there. However, I just found out that the Mailto has a limit on the number of characters allowed. I am exceeding this limit.
View 1 RepliesI have several controls on aWinForm (VS2010) which are bound to an SQL database table via a Dataset, BindingSource and TableAdapter (all bindings created via the IDE). When i try to update the daatbase table with changes made in the form controls using:
Me.QuoteHeaderBindingSource.EndEdit()Me.QuoteHeaderTableAdapter.Update(Me.BurdensCRMDataSet.QuoteHeader)
I'm getting the following error message: Cannot set column 'SalesTeam'. The value violates the MaxLength limit of this column Now on the surface the problem would seem self explanatory and the solution quite obvious. However i'm not changing the 'salesTeam' data, so it's exactly the same as it came out of the database and consequently it must be the same length. the data is two characters, the database field is a Char(2) data type and the datatable field has MaxLength = 2. So i can't see what's causing the problem or what i can do to resolve it
I've tried changing the data in the relevant textbox to just one character, but it still throws up the same error I've tried changing the SalesTeam DataTable field to MaxLength = 4, but it still throws up the same error I've tried reconfiguring the TableAdapter, but it still throws up the same error
I know my code is good because it works for other datatables that other controls in the same form are bound to. I'm I doing something wrong or missing something obvious or has anyone come up against this before
Do multiline textboxes have a character limit?Someone who was using my program said that he has some textfiles that are about 50 KB and when he goes to copy/paste that data into a multiline textbox, he only gets about 31.9KB of the data.My MaxLength property says 32767, which basically matches the 31.9 KB, however, most of what I read on the internet says Multiline Textboxes can hold unlimited characters and that MaxLength is actually ignored when a textbox is in multiline mode.
View 2 RepliesIn my datagriedview i have 5 column called T,C,F,S and H.I want to specify in column C that the user must enter 3 digit. For column H the maximun value should be 2000 so user should not enter more than 2000.how i can specify this condition for my datagriedview column?
View 2 RepliesI have a word (2003) document containing many Activex textboxes which are used to apply a character limit to the users input. Sometimes users want to paste data into the textbox from another source ks fine, but if they try to do it via the Edit menu then the textbox is deleted and replaced with the pasted text
View 6 Replieshow to set the limit of a certain column to accept 10 the same inputs only. I have a table named Date and I want to limit its content for the same inputs to 10 only cause 10 person only can have the same date.
View 14 RepliesI am trying to limit what a data set will return to a DatagridView. Is this possible?For example if I wanted to only show Data that was logged between 2 dates.I have the full Dataset done and am trying to figure out how to use a button to then manipulate the data to show what I want to and not every record in the dataset.
View 7 RepliesI am loading data from a Textfile into a datagridview. I want to limit the amount of rows created at any stage to 9. How can i do this?
View 2 Repliesi have a combobox that is linked to a database, but when an item is selected it is changing the name of the top item to the selected name. im sure this is happing because it is its text value and not it selectitem value, is there anyway to stop text input so it becomes a selected value rather than a text property
View 2 RepliesOkay, I've got a datagridview in my WinForms app that auto-builds the column list from a datatable schema. It's working fine, except that it allows the user to enter values too long for the database field. For example, I have a "name" field that is defined in the Sql-Server database as a varchar(50). Is there any way to limit that cell (column?) so that it only accepts 50 characters? Right now it lets them enter anything and throws an exception later.
View 3 RepliesHow to add a checkbox column at first column of datagridview including column header?After adding, how to code to "check all" or "uncheck all"?
View 27 RepliesI have a UI that uses datagridviews / bindingsource / datatables of typed dataset for data entry. The dataset itself is serialized to a varbinary(max) in SQL. (i.e. no tableadapter, backend schema).I would like to limit the number of rows the user can enter into some of the grids (the data is used to fill PDF forms and I don't want them entering more rows than the forms can accomodate.).I have subclassed the datagridview, added a rowlimit property and tried to manipulate the AllUsertoAddRows property
Imports System.Windows.Forms
Public Class dgv
Inherits System.Windows.Forms.DataGridView[code]......
The behavior I see is that the messagebox comes up after leaving the max row even when the user is trying to leave the grid. I can lose the messagebox and deal with notification some other way but I thought someone else may have come up with something a little more sophisticated to handle simply causing attempting to add to many records to navigate out of the grid to the next UI control.
I'm using vb.net and a DGV to open a access DB. On load im filtering out everything except what was created on the current date. [code]...
View 1 RepliesI need some help on merging 2 tables. A simplified version of the issue and the error is outlined below. I am doing the following steps: 1. Create & Fill the schema of the table TblA by an adapter. TblA = DSTasks.Tables.Add("A") AdpA.FillSchema(TblA,
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Add persistence to multible DataGridView in terms of Hide/Show column and column width
View 1 RepliesIt seems that on clicking datagridview column header, the column will be automatically sorted based on the column type. I have a column showing some numbers. If column type is string, it sorts "1","20","3" into "1","20","3". If column type is double, it sorts into "1","3","20" which is the result that I want. However, there might be some erros in the numbers and error messages(text) will show in the cell instead of numbers. So I cannot set the column type as double. I want to ignore these error messages and sort all the numbers. How can I do this?
Also, I need to add some background colors to different rows in datagridview. So in the column header click event, I call the bkgColor Sub to achieve this. My question is that how can I override the sorting method in this event?
Private Sub DataGridView1_ColumnHeaderMouseClick(sender As Object, e As System.Windows.Forms.DataGridViewCellMouseEventArgs) Handles DataGridView1.ColumnHeaderMouseClick
Try
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i have a datagridview with three columns. i set the first column to visible=false, so the user can only see two columns.when the user presses the tab key in the first visible column -- column(1), i want to ignore column(2) so that the user only tabs through the rows in column(1)i can't get it to work. it will always tabs through the rows in column(2) even if i use the column name.
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I want to disable column in datagridview so the column will not receive focus,
when user press tab to move from cell to cell this column will be skipped and the focus move to the next cell or column.
In my window application i have taken one combobox field with its collection as "amc", "war" etc. Now in my datagridview this combobox column is display as Textbox column, i want to change it to combobox with the above collection "amc","war". I have retreiving the result in datagrid through sql query, hence in datagrid edit column section we doesnot have that part to change to Combobox column.
View 1 Repliesin my window application i have taken one combobox column with its collection as "amc", "war" etc.Now in my datagridview this combobox column is display as Textbox column, i want to change it to combobox with the above collection "amc","war".
I have retreiving the result in datagrid through sql query, hence in datagrid edit column section we doesnot have that part to change to Combobox column.
I have:
- Table1 with columns: PK_ID1, LOCATION, DIRECTOR, SELLER, SELLERID, WORKTIME (relationship), WORKCODE
- Table2 with columns: PK_ID2, WORKCODE (relationship) & WORK_DESCRIPTION
My DataGridView do a SELECT * FROM Table1;How can I replace WORKCODE with WORK_DESCRIPTION in DataGridView, please?
Dim Comp = From C In db.Table1 _
Select C.Completed, C.Taken, C.Namne
Datagridview1.DataSource = Comp
Am using the Entity Framework and Columns Completed and Taken are of bit Datatype. When the query results are displayed in the datagridview, these bit columns are returned as of ColumnType Textbox - so i get a Datagridview textbox column with true or false string values.
I want to display Completed and Taken as Checkbox columns (either ticked for True or un-ticked for false) but ofcourse i can't do this in EditColumn dialogue because the Datagridview is unbound.
how can i change this in code at runtime
Is there a way to find the column index of a datagridview column using the columns DataPropertyName?I currently use a loop (shown below in the class) which is kind of ugly, but it works. I'd like to do something like this, which seems more elegant.My goal is this, I store the users DataGridView column settings (i.e. DisplayIndex, Visible, & Width).When the user opens the form that contains the datagridview I want to get those settings from the database and apply the settings to the datagridview.[code]
View 5 RepliesI have a data gridview on my windows form with 4 columns. Now I identify a column as followed:
Dim item1 as String = DataGridView1.Item(1, index).Value
So now I use a number ( In this case: 1 ) for the column index, but I want to make it a bit more readable so now I want to obtain the column index based on the datagridview column name.[code]...
I want to move the cursor from column 1 to column 4 but what happened instead the cursor moves to column 5, this happens when I use the enter key event. but run well if I double click. The following description of the program: there are 7 columns of code, item description, unit, price, qty, discount, item amount code when key enter press :
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