I created a user control which sets Name while entering code in textbox. Then I created a datagridview column of type usercontrol it is working but when focus is lost no value is displaying in column and another problem is same value is there for all columns.
It is america in column when I move to next row or column then it becomes blank:
I want the selected text in that column
Related
I have a datagridview and recently I got task to add a checkbox column (which I did) and a button (btnFilter) that will filter/show only selected rows so for example if I check only 4th, 5th and 6th row and click on 'btnFilter' the datagridview would show only rows 4,5 and 6.
So, the problem is how to show only selected (checkbox) rows.
Thank you for your time.
The idea is to have a button which when clicked, a loop will be executed over GridView Rows. Within the loop we will check whether the CheckBox for that row is checked, if the CheckBox is checked then the Value from the GridView Row Cell and Cell controls like Label, TextBox, DropDownList, etc. can be fetched.
Here is the complete example with screenshots and source code in C# and VB
GridView checkbox: Get Selected rows
I have DataGridView, in which, I would like to have two columns.
1st column to show object name
2nd column to show object value in combobox
In first row, I want to display information about "Birds" i.e. first column will have text as "Birds" and second column will contain a combobox having the names of birds.
In second row, I want to display information about "Animals" i.e. first column will have text as
"Animals" and second column will contain a combobox having the names of animals.
Please let me know how can I achieve this in C#.
Thanks.
you can add column in data grid viewer and set its type Combo box.
So in this photo I have a gridview,
Column 1 is DropDownList, Column 2 is TextBox and Column 3 is Read Only. for Column 1 as a TextBox, when I clicked Edit, changed the value of TextBox and then I clicked Update, the Value of Column 1 chenged. Then I replaced TextBox from column 1 to a DropDownList. I converted Column1 into a TemplateField, Edited template field of column 1 and changed it as a DropDownList. Now When I try to Edit a Row, I choose another value from DropDownList and it doesn't change.
NOTE: I haven't don this programmatically. .aspx.cs file is empty. I have done this via GridView Tasks.
UPDATE:
I have managed to fix the problem.
On EditTemplateField, on DropDownList I clicked Edit Data Bindings
After that on Selected Value I bounded it to the column I want.
I'm showing data from database table into datagridview
each column has a checkbox
for example column named "Tel" has a check box "checkBox_Tel"
if (!checkBox_Tel.Checked)
{
dg.Columns.Remove("Tel");
}
when the user uncheck one , the column related to this check box is removed from the dgv
but i want to return that column when the user recheck it
how can i do that?
If your intent is just to hide the column and then restore its visibility then
dg.Columns("Tel").Visible = checkBox_Tel.Checked
Use this property to hide a column from view while keeping the column
in the DataGridView. To completely remove a column, use the
DataGridViewColumnCollection.Remove method.
I am trying to bind a numeric field in an oracle table to a Datagridview - combo list in windows forms. With this what am trying to achieve is;
1 ) Based on the numeric value present in the number field, fetch ad display the respective string value in dataviewgridcombolist column.
2). When a new row is added in the datagrid view, the user may be allowed to select a listed (string) value in the combo list and the respective index value to be stored in the table back.
lots of thanks in advance..
Regards
Rithesh Krishnan
I've created a customized grid control. Where you can specify each column type the respective editing control will be displayed - for the combo box column a combo box field will be displayed, for the numeric column a numeric editor will be displayed.
While user adding a new row also user will get these editors. Usage of this class as follows
customDataGrid1.ColumnDataTypeMapping.Add("EmployeeName", CustomDataGrid.CustomDataGridColumnType.TEXT);
customDataGrid1.ColumnDataTypeMapping.Add("ManagerID", CustomDataGrid.CustomDataGridColumnType.COMBOBOX);
customDataGrid1.ColumnDataTypeMapping.Add("JoinDate", CustomDataGrid.CustomDataGridColumnType.DATE);
customDataGrid1.ColumnDataTypeMapping.Add("DateOfBirth", CustomDataGrid.CustomDataGridColumnType.DATETIME);
customDataGrid1.ColumnDataTypeMapping.Add("Salary", CustomDataGrid.CustomDataGridColumnType.NUMERIC);