Thanks Gary for the reply. the link you shared helps me a lot. but I had encountered another problem using the expandable datagridView.
My datagrid consists of 4 columns, string column (treeView), combobox, linklabel and string column. Below is my code.
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foreach (KeyValuePair<int, string[]> name in nameDictionary)
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{
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parentNameNode = helper.getName(name.Value[i]);
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//treeView1.Font = new Font(null, FontStyle.Bold);
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parentNode = rootNode.Nodes.Add(parentNameNode);
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parentNode.DefaultCellStyle.Font = new Font("Verdana", 7, FontStyle.Bold);
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if (name.Value.Length > 1)
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{
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for (int a = 0; a < name.Value.Length; a++)
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{
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childNode = parentNode.Nodes.Add(readerName.Value[a], "aaaa", "Start");
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childNode.DefaultCellStyle.Font = new Font("Verdana", 7, FontStyle.Regular);
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}
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}
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Question:
How could I populate the comboBox column? I am getting this error "DataGridViewComboBoxCell value is not valid".
Please help me.
