Datagridviewcomboboxcell 值无效。
WebJan 19, 2011 · How can I add items to an already existing combobox cell in a datagridview combobox column , Each row contains a different items in the combobox column ,
Datagridviewcomboboxcell 值无效。
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DataGridViewComboBoxCell value is not valid I'm currently assigning the data source for the cell to an IList from a Dictionary I've got. Upon setting the data source however, the index for the ComboBoxCell isn't set, so it has an invalid value selected. WebJun 8, 2013 · 原因 传递给DataGridView#DataGridViewComboBoxCell的值类型与DataGridViewComboBoxCell要求的数据类型不符,传递的是Int32但实际要求的 …
WebApr 18, 2016 · :The error message says "The dataGridViewComboBoxCell-Value is invalid. Further information: Each column should have the same Items in the comboBoxes. (These are previously loaded via internet, as xml). Setting a dataSource to the two columns destroys the whole DGV (I think because the other colmns don't have a Datasource). WebFeb 6, 2024 · Like the ComboBox control, the DataGridViewComboBoxColumn and DataGridViewComboBoxCell types enable you to add arbitrary objects to their drop-down lists. With this feature, you can represent complex states in a drop-down list without having to store corresponding objects in a separate collection.
WebFeb 12, 2012 · DataGridView的DataGridViewComboBoxColumn列点击一次,自动处于编辑状态. Winform中的DataGridView数据绑定控件有时会用到ComboBox列,想要显示ComboBox列的内容需要点击两到三次才可以。. 这使操作变得很麻烦,降低了易用性,尤其是在程序部署在一些小型设备或者触摸屏设备 ... WebOct 12, 2015 · I have a DataGridView control, whose first column is DataGridViewComboBoxColumn. Combox element has values let's say: "Custom","AAA","BBB". Second DataGridView column is just editable cells. When user selects any combobox item (except "Custom") user input is moved to the second column …
WebDec 11, 2009 · I have a DataGridView with ComboBox, they are genereted dynamicaly. The code looks like this: DataGridViewComboBoxCell comboCell = new DataGridViewComboBoxCell (); DataTable dt1 = new DataTable (); dt1.Columns.Add ( "number" ); dt1.Columns.Add ( "count" ); for ( int j = 0; j <= count; j++) { dt1.Rows.Add (); …
Webprivate void phoneNumberGrid_DefaultValuesNeeded(object sender, DataGridViewRowEventArgs e) { // Prevent System.ArgumentException: … nisbet contact numberWebApr 26, 2015 · 就是我在winform窗体上放置了一个 DataGridView 控件,其中有一列为 DataGridViewComboBoxCell ,已经赋值了 并且已经实现了将选择的值存进数据库(如下图)。. DataGridViewComboBoxCell 没有 SelectedIndex 和 SelectedValue 属性。. 在窗体再次启动后 在DataGridViewComboBoxCell 中显示我上次 ... nisbet gold coastWebApr 4, 2024 · this.DataGridViewQgroups.Rows[e.RowIndex].Cells[3] = (DataGridViewComboBoxCell)this.comboCell; When the cell in which I click is empty I get the error: Operation is not valid because it results in a reentrant call to the SetCurrentCellAddressCore function . When the cell I click on has a value it works, I get … numb foot after knee replacement surgeryWebDec 26, 2013 · Viewed 3k times. 1. I want to set a value for a cell that is actually a comboboxcell. I done it for my another project but now the same way, doesnt work!! here is my code. //dgExcel is my datagridview var cmb = (DataGridViewComboBoxColumn)dgExcel.Columns [1]; cmb.DataSource = sucTurleri; … numb foot after surgeryWebMar 9, 2024 · As stated in the comments above i present you with the following option: This is as an example you can fine-grained this as you see fit,so first before you set the gridview datasource add the unbound comboboxColumn give it a name, then set datasource,then set the datagridview datasource and subscribe for example for the CellEndEdit and … nisbet court edinburghWebMay 7, 2014 · 问题:DataGridView绑定数据源之后,有一列需要用下拉框DataGridViewComboBoxCell显示,但是在处理DataGridViewComboBoxCell的下拉事件有些麻烦,它不像ComBox有SelectedIndexChanged,困扰我很久,结合网上的一些方法,再加上自己的一些改动,终于完全可以解决这个问题了。 下面是我的代码,有详细注 … nisbet glasswashersWebMay 9, 2008 · System.ArgumentException:DataGridViewComboBoxCell值无效 要替换此默认对话框,请处理DataError事件 而且还弹出多个一样的错误提示框 我自己认为可能是所赋的字符串与DataGridView中ComboBox列的下拉选项的数据类型不一致 它可能定义为varchar (8),我赋值的字符串不是这个类型的 但是不知道如何解决,不知道有没有人遇到过同样 … numbfrenchfry