C# 无法添加列，因为其 CellType 属性为空异常
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Column cannot be added because its CellType property is null exception
提问by Niko Gamulin
I have trouble with the following piece of code. When I go through with the debugger I get an exception when it comes to the following line:
我在处理以下代码时遇到问题。当我使用调试器时，遇到以下行时出现异常：
dgvCalls.Columns.Insert(1, msisnnColumn);
I get an exception:
我得到一个例外：
Column cannot be added because its CellType property is null.
无法添加列，因为其 CellType 属性为空。
Oddly, I created the same procedure for some other DataGridViews and it worked fine.
奇怪的是，我为其他一些 DataGridView 创建了相同的过程，并且运行良好。
if (!(dgvCalls.Columns.Contains("DirectionImage")))
{
directionIconColumn = new DataGridViewImageColumn();
directionIconColumn.Name = "DirectionImage";
directionIconColumn.HeaderText = "";
dgvCalls.Columns.Insert(0, directionIconColumn);
directionIconColumn.CellTemplate = new DataGridViewImageCell();
}
if (!(dgvCalls.Columns.Contains("msisndColumn")))
{
msisnnColumn = new DataGridViewColumn();
msisnnColumn.Name = "msisndColumn";
msisnnColumn.HeaderText = "Klic";
dgvCalls.Columns.Insert(1, msisnnColumn);
msisnnColumn.CellTemplate = new DataGridViewTextBoxCell();
}
Any suggestions?
有什么建议？
采纳答案by BFree
dgvCalls.Columns.Insert(1, msisnnColumn);
msisnnColumn.CellTemplate = new DataGridViewTextBoxCell();
Try flipping those two lines. That might do the trick.
尝试翻转这两行。这可能会奏效。
