datagridviewcheckboxcell

问题 Our app has a list of items displayed in a DataGridView. The first column is a DataGridViewCheckBoxColumn. We want our app to allow the user to click anywhere on the row as a way to select the CheckBox in the first column. We find that if the user clicks directly on the CheckBox, selection/deselection works well. The same is true if the user clicks on the data in the other columns. However, if the user clicks just to one side of the checkbox, we get strange behavior. The CheckBox in that row

问题 Our app has a list of items displayed in a DataGridView. The first column is a DataGridViewCheckBoxColumn. We want our app to allow the user to click anywhere on the row as a way to select the CheckBox in the first column. We find that if the user clicks directly on the CheckBox, selection/deselection works well. The same is true if the user clicks on the data in the other columns. However, if the user clicks just to one side of the checkbox, we get strange behavior. The CheckBox in that row

问题 I have the following DataGridViewCheckBoxCell . the problem is the visual update doesn't take place immediately in the edit mode, only when i quit it public class CustomDataGridViewCell : DataGridViewCheckBoxCell { protected override void Paint(Graphics graphics, Rectangle clipBounds, Rectangle cellBounds, int rowIndex, DataGridViewElementStates elementState, object value, object formattedValue, string errorText, DataGridViewCellStyle cellStyle, DataGridViewAdvancedBorderStyle

问题 I have a DataGridView with several columns and several rows of data. One of the columns is a DataGridViewCheckBoxColumn and (based on the other data in the row) I would like the option to "hide" the checkbox in some rows. I know how to make it read only but I would prefer it to not show up at all or at least display differently (grayed out) than the other checkboxes. Is this possible? 回答1: Some workaround: make it read-only and change back color to gray. For one specific cell: dataGridView1

问题 I have bound a data table to a DataGridView , this data table has a column called "Status" which is of type Boolean . I can set the value to true or false just fine via code. However, I can't figure out how to check to see if the given row is already checked or not. This is the code I am trying to use and compiling it shows the error "the specified cast is invalid". Any help would be appreciated. if (rowIndex >= 0) { var cbxCell = (DataGridViewCheckBoxCell)dgvScan.Rows[rowIndex].Cells["Status

问题 I have bound a data table to a DataGridView , this data table has a column called "Status" which is of type Boolean . I can set the value to true or false just fine via code. However, I can't figure out how to check to see if the given row is already checked or not. This is the code I am trying to use and compiling it shows the error "the specified cast is invalid". Any help would be appreciated. if (rowIndex >= 0) { var cbxCell = (DataGridViewCheckBoxCell)dgvScan.Rows[rowIndex].Cells["Status

问题 I'm new to programming and C# language. I got stuck, please help. So I have written this code (c# Visual Studio 2012): private void button2_Click(object sender, EventArgs e) { foreach (DataGridViewRow row in dataGridView1.Rows) { if (row.Cells[1].Value == true) { // what I want to do } } } And so I get the following error: Operator '==' cannot be applied to operands of type 'object' and 'bool'. 回答1: You should use Convert.ToBoolean() to check if dataGridView checkBox is checked. private void

问题 I'm new to programming and C# language. I got stuck, please help. So I have written this code (c# Visual Studio 2012): private void button2_Click(object sender, EventArgs e) { foreach (DataGridViewRow row in dataGridView1.Rows) { if (row.Cells[1].Value == true) { // what I want to do } } } And so I get the following error: Operator '==' cannot be applied to operands of type 'object' and 'bool'. 回答1: You should use Convert.ToBoolean() to check if dataGridView checkBox is checked. private void

问题 DataGridViewComboBoxCell.ReadOnly = true, but can still change the selected value has the same question but user was satisfied with an answer I can't implement. I got a dataGridView with many columns, one of which is a checkBoxColumn, which should activate or deactivate another column with text: Now, the code I got works perfect once the dataGridView is loaded: I click on the checkboxes and they work as expected. The problem is that I want the dataGridView to disable AllergiesDescription

问题 How to show a msgbox before update the checkbox in datagridview? Lets say I have a row with checkbox in Datagridview and the value of it is True(Checked) and I will click it. How can I show something like this first? "Are you sure you want to uncheck this? Yes or No" Yes = Uncheck No = Still the same (Checked) here is my code with the output i want but its not working Private Sub DataGridView3SelectAll_CurrentCellDirtyStateChanged( ByVal sender As Object, ByVal e As EventArgs) Handles